By itself, this video is out of context - This video answers all of your lawn mower carb questions: czcams.com/video/gmPtCmL-Ldw/video.htmlsi=ZXmfEXXmKuxU79Lr
there was a guy who did this in the past and it didn't end well for him... he added some electric part to atomize the fuel as well and claimed to get even more MPG, be careful
@@VenturaITfunny you posted this just now and my buddy was just talking about this the other day. As well as this guy's last post appears to be from over a year ago... 😮
Yes, they have created Fuel injection as a gimmick to sell more cars and to waste more fuel to sell more fuel. In the USA you simply can not import some high MPG European cars. Let that sink in. Like the Mercedes Smart car Diesel, that is getting 70 MPG, can not be imported in to the USA.
@Bass N Brass and once you have that a new flavor of the month will be there to keep you divesting your money. cant have the plebs building wealth by inesting in things that increase in value over time afterall.
@Bass N Brass Yep some dude made something similar back in the 70's super efficient carb but suddenly he went missing. Those big oil tycoons & governments don't like the common people messing with their profits that's for sure. The world out there is a nasty place you have to be careful who you step on, but I don't think it's too much of a risk now days the criminals are moving over to EV's you're right there Bass N Brass.
you'd be surprised how much gas you'd save if you let your car naturally (and obviously reasonably) slow down to your stop. On my Corolla iM I get like 35-40mpg on the street daily. It's not the acceleration so much that messes with your mpg as the sudden stops... just wasting all that momentum.
The carb cheater ties this all together nicely where the static carb becomes fairly dynamic. Should I do more with it, or is everyone pretty tired of the engineering stuff?
Uhh, more of course? Carbs are incredibly more interesting than any form of fuel injection will ever be. Just how much MPG can you grind out of this old rod, and do you think it's possible to do so well on other carbureted engines?
if you can reproduce this result consistently you should try to get a patent on the system and get with a company to start making kits. in this economy you might have a gold mine brother.
This is just the type of work that actually makes CZcams suck less. Wonderful work and insight into the issue at hand. Your controlled vacuum leak observation is a great fundamental solution to the problem. Is it just as simple as the atomization? It may be.
I am a mechanic for over fifty year, mostly Ford, and am very impressed by your results with this 302 lawn mower carb results. Wish you were my close neighbor, love to trade information. You've got it together!
You actually believe this bull $hit? I'm surprised a man of your experience would believe this bull $hit. 31 years in the industry myself. What about A/F ratio? Is it stokometric or even close? If it's too lean the N0X emotions would be through the roof! How's the power, driveability? I call BULL $HIT!!!
my dad always said there was a 40mpg carb that the oil companies purchased and put on the shelf to protect their businesses. Imagine if cars in the 70s put this on non-performance models. 40MPG on v8s
You’ve created a Hot Rod Power Tour holy grail!!! Just in time too! Those of us getting 9mpg will be thrilled when production starts! Very awesome video series man.
He should absolutely manufacture and market this. This seems like a great, relatively affordable way to at least stave off (if not prevent) the death of the V8.
I rebuilt carburetors for a lot of years. (yeah, I'm olde) I also "RUN TESTED" my carburetors on a test engine. A mostly STOCK GM 5.7L with a performance cam, but GOOD vacuum at idle. I ran a 4 bbl manifold and built flat plate adapters for various carburetors as needed. It became a source of entertainment to run the 350 on a 4 cylinder carburetor. BUT - it DID run. I do miss those days ... We did have FUN with this stuff !
maybe u guys need to get together....and a manufacturer . We need not 24/7 crap. This can heal. People could sleep at night and be healthy. There is SOO much more here ....Think a vulcher losing grip on its' prey... wars. Destiny of humanity, still on Earth...and Earth itself! Education revisited . Yes shaking hands, our cells know when it is right........Once you take transportation obstacle out, next is new shelter., healthy food, education for all with great debates for betterment........we are talking the POWER OF TRUTH HERE!!!!!!!!!! The KEY TO RID EARTHS EVIL IS TRUTH!!!!
I saw one on CZcams who ran a 350 chevy pickup on a home made intake box branched out to several chainsaw carbs. It idled well and would go well enough to get on the freeway, as it basically ran on vaporized fuel.
The engineers that build your current vehicles have known about this for many years, but giving you that kind of fuel economy isn't in the best interests of the oil companies, politicians who are lobbied by the oil companies and the vehicle manufacturing companies. Along with planned obsolescence and cheaper materials, heavier vehicles and more expensive fuel we are screwed. It's all about the almighty $$$ and how much of our paycheck they can take!
This is one of the most informing, entertaining, and innovative car videos I’ve seen in years!!! You are great on camera, I love your humor, and you are thorough in your explanations! Good to see another Iowa guy pushing the limits and stepping outside of the boundaries! -JR Kingsley IA
@@ThunderHead289 I’ve recently watched a bunch of your content, and not only am I very impressed with your lawn mower carb testing, but also your electronic monitoring system overall! It’s super rad! Love your old ford farm truck as well. Wish the prices were what they were when you got it. Finding one worth buying for what they’re asking in NW Iowa is tragically overpriced. Thanks for all the content you put out it really is great stuff!
This is totally mind boggling man!! Please take this on a 200 to 300 mile trip and report back to us.....PLEASE!! You have definitely hit on something big here!!! Also, would love to see a dyno pull just to see what it's producing.
And at the Dyno it all becomes clear he has half the power. There is no magic carb that saves 50% if your mileage. Only on CZcams... And after 3000 miles nice wholes burned in his pistons...
I'd love to see a longer test drive with this system, like 200 miles of highway to get a better figure on MPG. This is amazing, keep up the great work!
Agreed. Do a round trip back to the same exact pump same position at least 5 gallons worth of fuel. You’ll get a close to scientific measurement of fuel economy. Both ways exclude air/wind mostly.
Don’t be surprised. Your right about the vaporization of the carburetor but a big difference is the leaner mixture due to your controller. In my twenties I took a Fiero Gt 2.8. bored and stroked to a 3.2 with some performance enhancements and balancing. 30 mpg then added a potentiometer to the O2 sensor to fool the ECM, giving me control to lean the mixture. bumped mileage up to 38 mpg without any precision monitoring system. Didn’t lean up too much because that would burn out the catalytic converter and over heat the engine. So in hindsight I learned from my advanced engineer dad , who created the PCV valve , that Catalytic converters require unburnt full to operate. That means our modern cars with multiple CATs waste fuel so the Cats can absorb non combusted fumes so they too can burn and glow at the right temp for the catalytic process to occur .
Cool. Brings me back to my 4door 302 Comet. Was "Grandma's Car" and her grandson didn't want a 4 door. What a fun ride for $300. It had 34k on it. My ex took it to college and I never saw it again. At least one of us got a deer that season.😊
I concur, Sir! You have a new Subscriber, and All notifications from me. If I could give you two thumbs up, I would! Fellow Motorhead, with veins coursing with Royal Purple XPR!
The engineers that build your current vehicles have known about this for many years, but giving you that kind of fuel economy isn't in the best interests of the oil companies, politicians who are lobbied by the oil companies and the vehicle manufacturing companies. Along with planned obsolescence and cheaper materials, heavier vehicles and more expensive fuel we are screwed. It's all about the almighty $$$ and how much of our paycheck they can take!
I was an engine machinist/builder for JMS Racing Engines...we were in all the magazines. We built engines for the top Sportsman class at Willow Springs and everyone with our engines finished in the top 5 every race. This class was limited to 350 c.i and a holley 390 cfm 2 barrel. We got over 430hp out of these engines on our dyno. We did cheat a little on the c.i. but the point is that you dont need a big carb to make power.
High quality fuel + tuning. Seen what an experienced port-n-polisher can do with a stock block. Shows even tried and true designs always had more room for improvement
It has been proven that a bigger carb always means bigger power. I guess if you are using a small cubic inch motor that doesn’t physically need more airflow it wouldn’t matter. But if that 350ci motor with a 2barrel 390cfm makes 430hp you could easily make 550hp with a 600cfm. Richard done this test on a 292ci 4.8L and 326ci 5.3L and a 364ci 6.0L and a 408ci he done test with a Holley 500cfm -650cfm-850cfm and 1150cfm. Every motors made more power down low with the smaller carbs. But they always made more peak power with the biggest carb. Unless it was cubic inch limited. Say the 4.8L the 4.8L stopped making power when the 850cfm was installed. It made les power initial throttle hit after 1150 was installed. It flat lined around the same as the 850cfm . The motor couldn’t physically pull anymore air in.. now the 408ci gained power everywhere with the 1150cfm over the 850cfm other than first initial throttle hit. It was the same or slightly less. Only reason why is because the smaller carb had more velocity at lower rpms vs the bigger carb. So it recived more airflow on throttle wack. But once the rpms got up the 1150 velocity woke up.
@@Smxsucks That's not always the case. You can do all kinds of things on a Dyno, but the difference in the real world between a 600 and a 750 was a couple tenths in the 1/4 with all my cars
Holy shit batman! My uncle did this back in the early 1960's and got almost 50 mpg on his V8 Chevy Impala. No one believed it. No one cared because fuel prices were so low back then. When he attempted to obtain a patent GM bought him out with a deal that he "could not refuse". He was paid cash and they provided him with a new car every two years for the rest of his life. Just goes to prove that if our government was really serious about saving the planet we would be driving with some of these modifications today.
@@alexandria6063 I have to fix my 95 f150 computer because I keep stalling out. A new one is like $300. But I can refurbish it myself for $10 worth of capacitors that I can solder on myself. There's a place for computers, but "modern" cars have gone too far toward becoming tech devices instead of transportation.
@@jamiel9902 Carbs have a sweet spot of perfect mixture but only for a certain level of the air flow. So a big carb will have its sweet spot on certain airflow while the small one will have it at low airflows. Since the best mix is 16part of air to 1 of petrol ... this is the target ... but very difficult to obtain for all the real engine loads situations in daily use. For a track car engine things become much more simple... But since the engine displacement= volume is always attempting to pull the same amount of air despite the engine load required ... it becomes difficult to find the perfect balance in sizing the carbs and obtaining the mix required.
When others say add "X" to your engine and get double the mileage you know it's bs. But uncle Luke is a sceptic from the start and took what started as a joke into something practical. And explained the engineering in a way most people can understand, as always. Hats off to you sir! Thank you for the quality content and yes I'd love to see you try the carb cheater with the bigger carb as well. Keep your head on a swivel for the big oil guys though lol.
@@nathanbopp6163 It's not big oil that has a problem with EV's its the government tax systems that hate thme because they don't know how to squeeze all the same tax revenue off them yet. Reality is big oil would love to see us all drive vehicles that use half the fuel while charging us twice as much per gallon so they could sell us half the fuel they do now for twice as long into the future. The problem is the big government would lose badly on the taxes and all the other related 'fees' they skim off the system from oil well to gas station. Big oil only makes about 10 - 20 cents per gallon off things while big government gets 2 - 3x and in some states like california 5+X that off that gallon from end to end.
@@nathanbopp6163 big oil makes money off of electric. What do you think powers the mining equipment for battery metals. As well as powers the ships that traverse the oceans taking those metals to manufacturers. Big oil ain't scared at all.
@@handsonlatham7802 Yep, Big oil powers much of the generating systems they need to make EV's work. Zero problems for them on that part given how little work big oil has to do to supply fuel to those systems.
This proves the point of the comment I made on the 1st video of this series about people here on Mexico swapping big carbs on their V8's to the smaller ones that came in sedans or light duty vehicles that had the same engine, (or even from 6-cyl engines I might add). As I said in that comment, the smaller carb probably kills a few horses, but they do save up some fuel.
@@rexandexler575 I think he lost horses, after all top end will suffer more than low end. He also mentioned in the video a "controlled vacuum leak" which is just a fancy way of adding a carburator bypass. The extra air and a small carb that runs rich most of the time makes this a very efficient way of reducing horsepower in the low end, and keeping plenty of power for the top end.(maybe less than the large carb would have)
Holy moly 😲 this is incredible! I recently got an 1989 Ford F-150 300 straight 6 and 40 mpg sounds like a dream! I might have to learn some engineering/mechanics... just wow! Awesome stuff.
I’m very intrigued by the series. I am really looking forward to see what else you come up with! Great content especially for a new subscriber. I’m glad I found your channel.👍😎
I would love to see a long term mpg test. At least 200 miles. Taking it on power tour would be epic. I would love seeing a few more videos on this setup.
We would have to have a controlled experiment with multiple participant vehicles to see if we can eliminate variables and figure out if this really works. THAT WOULD BE COOL!!!
I just have to say, this man is like the Moses of automotive tinkering. Someone on facebook said "You can't" and this man went full rocket science, made it work like a dream, and then pulled out receipts.
@@omegarugal9283 Or people that understand the basic principles of physics.... and no better fuel atomization doesnt quadruple your fuel economy... the tiniest, carb, with all the bends you'd ever imagine won't give better atomization than direct fuel injection.... and this motor with that still wouldn't see a 4x increase in fuel economy.
@@omegarugal9283 your getting 40+ mpg out of a 3500 pound car with the aerodynamics of a brick .... Then you should clearly go make millions as the head engineer for a car company! Your clearly the smartest of them all.
Great job man I thoroughly enjoyed this and who knows about telling people bout it we all know the whole MPG dealio like pretty much a lot of things in this world are not to their full potential and kept there for a reason. We love it here man
When I bought a used 1971 duster in the eighties upon lifting the hood I discovered that unaware of the chain repair they had trimmed half of the fan blades off to avoid contact with the hood due to a broken motor mount so after I fixed it temporarily with a chain I still had to get a fan .this was to be only the beginning of the trauma as I went about restoring this car .only to have a truck total it as it neared completion probably a good thing as I would have probably drove to fast and wrecked it eventually anyway!
@@grayharker6271 thanks for the reply I'm not that old early 60s but you know what I miss about old american steel you could buy a car like the duster I mentioned over 100000 miles on it for a hundred dollars and drive it off it might not run or handle great but between your friends and such you could diagnose repair and drive it no computer hassles easy to get parts I miss the good old days
I did the same thing on my '76 F250 inline 6. It rotated too far once and broke the fuel line spraying gas all over the engine which of course burst into flames. I was two blocks from home so I ran, got an extinguisher and ran back thinking it would be a total loss. Put out the fire and after it cooled down I inspected the damage.....one burnt sparkplug wire! After that I chained her down.
@@charleshultquist9233 I've had so many similar incidents that heres a confession my nieghbor was working on an amx distributor the point variety very low hood and somthing told me to tell him to make sure the ignition was off but I didnt.and as expected he started messing around with the feeler gauge I'm watching out my window and then as I knew what was next the double whammy first the shock and then the withdrawal impact with the hood .at the time I guess I got somthing out of it watching it happen to someone else now I'm kind of maybe a little bit sorry anyways sorry to dump my confession on you thanks for the chat anyways
Great job!! In the 1980s, before EFI became commonplace… Most major manufacturers had electronic carburetors of some type or another, that used a pulse-width modulated fuel mixture control needle, versus your PWM air bleed concept. This has been fantastic to follow along with!
They always had issues with electronic feedback carbs back then too. Everything in the carb and on the engine with it's mounds of vacuum operated emissions system had to be working correctly for the MC solenoid to function correctly. There was always issues when they came into the dealership to get worked on. Fuel injection came out and made things simpler and easier to work on.
You need to burn more gas to get an accurate mpg reading. Drive highway until you're less than 1/4 tank and calculate based on the odometer/trip meter and gas to refill. Repeat in city driving conditions (if such a situation even exists in Iowa lol). I would also be interested to see dyno numbers compares to the 4 barrel, just out of curiosity. Great video series, very interesting!
Just drive it around for a couple weeks.keep track of your numbers. It would be realistic mpg. Most of us don't ever see true mpg.. because of our foot and driving habbits.
do like mythbusters, put in a fuel cell, measure out the fuel before and after under different driving conditions, will give more accurate results. Looks good so far though!
What a great channel. Our best man back in the 70's owned a blue '73 Maverick (aka Blue Devil) with the inline 6. He added headers and high flow exhaust - made that car run like a scalded dog.
My first new car was a 1976 Maverick with the 302 and a 3 speed with a floor shiftier. I re-tuned mine, that started with a 2 degree timing increase, I took a bit off the accelerator pump action for a smaller squirt, and I added a vacuum gauge. I swapped the stock rear axle for a rear end from an automatic car to get a lower more fuel friendly highway rpm. When the clutch started to die I swapped in a 4000 lb Zoom clutch kit which quickly broke my clutch adjustment rod. To improve the handling I added big front and rear Addco sway bars, air shocks with individual air lines so the car didn't swap air from shock to shock stabilizing the rear roll, traction bars staggered right for an almost positraction takeoff, 5 spoke mags shod with white letter B F Goodrich 60 series tires, and a free flow turbo muffler dual exhaust. My tweaked Maverick got timed for a 200 pus a few miles run at just over 140 mph average speed. On the other side at a steady cruise watching the vacuum gauge to keep as light a foot on the throttle as was possible my Maverick got 30 mpg even though I drove the 300 mile test in a driving rain running 60 series tires. 30 mpg for a car that can run over 140 mph for over 200 miles is fairly amazing. I have often wondered what would have happened if I had the internet to use for building a water injection system so I could run even more timing advance, plus could I have taken even more action off the accelerator pump action using water injection? What if I had easy access to the modern timing chain components to advance the cam timing as I've read the smog motors often had retarded cam timing to get the emissions required.? What if I cold have swapped in a modern 5 speed? Maybe lowered my Maverick an inch or two for less under car air drag? Maybe a belly pan to cut air drag/resistance under the car? Could I have hit 40 mpg?
That's amazing! In all honesty I didn't think the gas mileage would be so good I figured MAYBE 25, 30 but definitely not 41mpg congrats, you honestly deserve a the proper recognition for what you have accomplished, my hats off to you!!
@@blipco5 He meant 4 cylinder engine, not 4 spd transmission. Needs to find something like a SVO Mustang engine and do a full build on it with all the cool parts.
Really cool and well analyzed theory and process. Honestly, I think the little carb with the twin air filter intake looks sick under the hood! I love it! Great content. Subbed!!
A friend and I did something simular,, we did it with an 88 Ford escort station wagon. The car got 66 mpg. Lawn mower jet and increases fual pressure. It atomizes the spray. Also we preheated the fual at the carb, so the temp change shocked the partials. It's really good to see someone do what we did as every one says it was bs. Thank you.
My Boy Scout leader was into pure engine oil. He had special filters so that once the oil went thru the engine it was impossible to have wear. Something about micron sizes etc. He also had a vacuums meter and would try to keep things in check to save fuel. But there were some huge hills and he did floor it, that was fun. 8 cylinders roared!
@@superchuck3259 iirc its called a "bypass oil filter" its an oil filtering system used in conjunction with the standard filter system but utilizes much smaller micron filters. Basically it adds an extra step in the filtering system basically a scrubber, without forcing all oil to go through the bypass filter (the low micron filter size causes reduction in flow which is why it cant be used as the primary filtering system)
@@User-sw8gb 1 We wrapped the fuel line around a glow plug to heat it up. 2 It was the original carberator but with a 6 inch neck on it, giving a little more time for mixing and to brake down, The fuel jet was from a lawn mower, the smallest we could find. 3 I don't know the actual fuel pressure but we replaced the original with a high pressure rated pump from a truck. Forgot to mention that we installed an air pump that worked right off the surpetine belt. I think it was a turbo jet. We had an O2 rich mix which we thought would be good if we wanted to add a second fuel jet as a "turbo boost", The car though could get up to 105, But the acceleration was nothing to talk about. The MPG testing we did was from Savanna GA to Knocks TN. We averaged 85 on the high way. That was the only time we really did a MPG measurement, From the Ride up and back. The car got totaled when my friend got T-Boned as some idiot ran a red light.
It would be interesting to see how much power the mower carb could put down. If it's anything decent you better watch out. The oil and industry hit men are coming for ya!
At this point they might welcome this actually. They got much bigger problems coming up with electric cars, not to mention the government wanting to ban gas cars all together and force everyone on electric, hell they announced in CA that no more gas cars can be sold there after 2035 I believe. My suspicion is that this also substantially cuts down on emissions as well which would please our commie government. Ironically the one thing they were against, suppressed and silenced at one point may now be the only thing that can save them.
@@johnmurraycompton569 The chip shortage isn't really for EFI but like everything else around it. Motorcycles with EFI have returned back to normal prices because the tech needed to run just a engine is really basic
Politicians talk a good game, but they don’t actually want people getting good mileage. The geo metro got 50 mpg in town, I had one I know. Why couldn’t they have improved upon that instead of burying it?
I love this content. I always thought there wasn't much engineering you could do to improve an old carburated engine but clearly I was wrong. You are awesome!
My God. If someone would have told me that having a screwdriver keeping your glovebox closed looks cool I’d think they’re crazy. On this car it just looks part of it! Awesome
This is great! My dad used to fit smaller carbs to bigger engines as well, but he's theory was that it would restrict the fuel supply, I think your theory on atomization is more plausible.
The most common mistake that was made on kids cars when I was a teen is using too large a carburetor. Most contests we had were light to light and torque won out every time. Sure, you could build a 301(3" stroke 4" bore), spin it to 8000rpm, if you balanced it well and used white pump gas, but even a 625 CFM carb was a little much. Any time you are blowing out black smoke, that is unburned fuel.
@@markm0000 lol you can do the same thing with a efi and no need for all these stupid contraption You could run as lean as you want with efi and a xouple of key stoke on a keyboard bjt it atil the dumbest idea evwn you cgonna end up with a blown engine
My daily ride is an old 2007 Toyota Corolla , small 4 cylinders 1.8 liters engine . 4 speed automatic transmission. I can’t get more than 33 miles per gallon in the highway and much much less city only . You’re doing miracles there man, carry on
Many years ago I knew someone very into building high performance engines. One of them used a fairly strange manifold with 2 four barrel carbs and one two barrel. The two barrel was very small but it was the one that actually had choke and idle and the like on it. The four barrel units were fully closed about the 1st half of the travel of the pedal. Just driving it here and there, he got over 30MPG. Doing 70MPG was just about fully open on the two barrel and the linkage to the four barrels hadn't started moving yet.
My 79 year old boss, who I worked for 6 years ago, he told me a story of how the original Ford Falcon had a backfire "screen" on the intake manifold, under the carburetor body, so prevent the engine from backfiring and killing someone. Apparently it was a common thing, when early day mechanics would work on carbureted cars, when they would do a tune-up, they would have the ignition timing off, and the engine would load up, then backfire through the carburetor, blowing a huge fireball into the person's face, and the problem is, the mechanic would "inhale" violently as a scared reaction to the backfire, sucking the fire into their lungs and dying. This problem required a "screen" mesh to be put on the carburetor. My coworker said that the first Falcon's with this "screen" on the intake manifold, made something like 30 mpg, and so Ford immediately removed the screen, and mileage went down by about 50% - back to normal. The screen apparently caused super fine atomization, which made it burn twice as well.
The engineers that build your current vehicles have known about this for many years, but giving you that kind of fuel economy isn't in the best interests of the oil companies, politicians who are lobbied by the oil companies and the vehicle manufacturing companies. Along with planned obsolescence and cheaper materials, heavier vehicles and more expensive fuel we are screwed. It's all about the almighty $$$ and how much of our paycheck they can take!
I've been a Ford dealer tech for almost 30 years. I've heard stories that a properly set up VV carb is the closest thing to fuel injection, without actually having it. VV carbs are somewhat dynamic in their operation, but work differently from your set up. I also don't think you'd get anywhere near the fuel economy that you're getting. It is impressive.
His is more akin to port injection with an idle air control valve. He may not know it but his tuning is very well done for mpg efficiency. He is essentially running on gas fumes but can dynamically rev it high for more power(and lost of gas). I doubt he will get much for speed but noone needs a fast af car. His system is very seamless when it switches from fuel efficiency and more power. 40 mpg is very possible on most V8s.
Ford-Europe actuallly used VV-carbs on the Taunus/Cortina 1.6L OHC Pinto engine. (my 1980-1982) If you ran the car gently it would get pretty good mileage. Better then with the older conventional carb.
@@acters124 it’s running rich until he opens a secondary fresh air valve to get the proper ratio mixture (controlled vacuum leak). Watch the series on this build and he explains.
Great video, I've been a fan of 500 cfm 2 barrels in my pickups on 390 v8s, had a lot of people tell me that was too small...but, I really like the way they perform, been running them for over a decade
I had a 74 Ford Maverick with a 302 automatic back in the early 80's. Loved that 302. My Dad and I were always working on cars in the yard. This carb trick would've been something I would've tried back then if I thought of it. I enjoyed this series of vids. Thanks!
Wow!I believe you're correct about the atomizing of the mix,it surely does more than my expectations, as far as the overall drivability. I've never had the financial ability to do many of my ideas, and I'm glad to see someone with likewise understanding to finally accomplish a very worthwhile endeaver.MY HATS OFF TO YOU BUDDY!
Old motor head here. Just found ur channel...GREAT STUFF!!! Screw the haters. Back when I was building and racing late models I did modes that guys in the pits would whisper "he's a wack-o thinking it'll make a difference." But I only ran motors that came out of the junkyards...small block 4-bolts out of junked pickups. With the tweeks I did, e.g. jetting the carb differently on the left v right because of a slight difference in centrifugal force ( running oval track, as they joke, go fast...turn left ). Haters will hate...it seems to be their call in life: don't ever do anything, just hate on anything that anyone else does. Best to u my friend...I'll be watching.
the average beer-head is run down they want to reduce everyone to their level. come to think of it - actually it is the average person. " when a pick-pocket meets a saint , all he sees is his pockets. "
Haters might just hate, but gullible people will swallow an unbelievable level of bullshit and believe it's true. If you raced, then you know you can either use gas and make power or not use gas and not make power. The carb doesn't have anything to do with the energy content of the gasoline. All racers are whack-o's. That doesn't really matter. Did you win races? Then we find out if you're whack-o, but clever.
This is about fuel economy not speed. You won't be winning any race when you are trying to save fuel. Most people say bull haven't even tried it first to prove their point so the bull people are full of it . I want the see it don't work I seen many that do work. Right now does work won. 73
The engineers that build your current vehicles have known about this for many years, but giving you that kind of fuel economy isn't in the best interests of the oil companies, politicians who are lobbied by the oil companies and the vehicle manufacturing companies. Along with planned obsolescence and cheaper materials, heavier vehicles and more expensive fuel we are screwed. It's all about the almighty $$$ and how much of our paycheck they can take!
Reminds me of a Ford Fairmont my dad had years ago with the 2.3 L carbureted four-cylinder with a five speed manual. It also got around 40 miles per gallon. That was all while meeting emissions standards and delivering power that was adequate for the time in a midsize car. Still, a great project with clever use of modern close looped devices. Would be a good project for someone on the flats such as yourself who wants to turn an old piece of American iron into a fuel economy champ
This is just insane to watch. Youre onto something groundbreaking, please continue for everyones benefits. Innovative and inspirational. Great job, cant wait to see more
This is amazing, I love it! You're 100% correct about the fuel atomization too. The smaller carb is greatly increasing the air velocity which in turn increases the turbulence, which atomizes the fuel better. The only downside I can see is your horsepower cap based on the intake restriction from the small carb, but I'm sure you knew this would be the case. Personally I'd like to see you try this on a late 90's 4 cyl car, like a Civic or a Cavalier. Cheap to buy used with light, more aerodynamic bodies. Ditch the FI, swap in a small carb, and test/tune. Wanna bet you'd pass a Prius for MPG's?
THEY made sure carbs were taken out of the equation for more than one nefarious agenda one of which was making sure there is an ecu on everything we have. Carbs have a lot going for them where here in Japan we still have 1996 carbed daihatsu Kei mini van that gets 56mpg vs the latest high tech daihatsu, suzuki and honda mini vans which only get 40mpg and match 56mpg with latest stop start no idle technology.
@@altruismfirst6489 I'm not entirely sure about this statement. "THEY had a nefarious agenda to make sure all cars have ECUs"... So, is there something wrong with EFI? I mean, there's also mechanical injection as well completely without any digital modulation, and even mechanical injection ports have proven to provide a noticable increase in thermal efficiency. I do admire something about the carb communities: It's dirt simple, cheap and easy. Just very far from efficient.
@@bluspectre2042 it's like 15% or less efficient, if you dyno tune a carb it can be brought into the single digits. what can go wrong with efi? 8+ sensors, high pressure pump (in the freakin gas tank), plugged injectors, ecu, fuel filter (under the freakin car on most) catalytic converters. what can go wrong with carburation? fuel pump (front of engine 20 min fix) fuel filter (next to carb 10 min fix). not to mention the price to replace those parts.....So yeah there's a very good reason to be pro carb.
Ah man this brings me back! So want that car now. High School could only afford a cheap car of course so you focused all you money on the engine and brakes to make it "reliable". Awesome video!
That torque strap chain brings back fond memories of drag racing when I was in high school in the mid 1970s. It took me several cracked windshields and a couple of transmission cases before I figured out how to control some of the chassis twist.
The late Bob Lear (of Lear 8-track fame) took a 1971 Chevy Impala 4 door sedan (4316 lbs curb weight),he paid $1400 for, with a 400 CID V-8 "smogger" engine and modified it so four cylinders were actually providing power and the other four were being used as superchargers. He drove it from Californicate to Washington D.C at the height of the "gas crunch" in 1976 at 55 MPH and got 50+ MPG and reported his findings to the Senate Transportation Committee and asked "Why doesn't GM build this?" The lobbyists from GM mumbled around for FOUR and a HALF HOURS without answering. He used four salvaged Mikuni CV motorcycle carbs he paid $110 for (off a KZ-900) instead of the $1152 Rottra-Jet carb standard. WITHOUT a cat-con it passed 2000 proposed EPA emissions standards. Ralph Nader swore under oath it "isn't possible". But the EPA CERTIFIED the results...
Man, watchin this whole thing evolve throughout this series has been pretty kool. I know you said this was intended to be a joke. But it seems to me that there are a ton of practical applications for this tech. and possibly a huge market for it. Great content man.
@@masonthompson4363 ...There have been plenty of fuel injection kits for older cars. They just had max performance as their design objective. If they incorporated a small throttle valve with a larger secondary, they could maintain air velocity similar to this, but with reserve power (V8 power) This carb simply removes the users choice to use the V8's potential. That sounds a lot like wearing running shoes while wading in three feet of water. You won't be running.
It would make for a nice addition to my gen-set, a riding mower, snow blower, etc. Those machines have the politicians eye atm, so I don't expect that gas versions will be available much longer, or cheap fuel for them for that matter. Maybe it was a good idea twenty years ago.
Excellent project! Very well done. I heard a tale of a ford truck in the early 70's that got around 50 mpg. It got accidentally sold to a guy in GA. They eventually got it back.
Back in the 1970's a guy told me him and another guy were told to load up some boxes from engineering into a truck. He worked for Oldsmobile and the engineer got a phone call and had to leave. While he was away they looked into one of the boxes that wasn't taped very well. In the box was a carb and it had a tag that read 1966 Toronado 455ci 66 mpg.
When you think about it, it makes perfect sense. Back in the late '40s and early '50s, there were plenty of v8s running around in the high 200 cubic inch range which had one barrel carburetors on them. These engines in big land yacht cars and pickup trucks with no overdrive and low gears where getting 20+MPG or somewhere in that neighborhood, with no dynamic tuning.
My '69 Catalina with the 400 V8 2BBL, 2.73 rear & 3-speed auto got near 15...with the carb way out of tune! After getting that Rochester 2 Jet back up to spec, it's getting at least 19 now. That's not bad at all considering it's a tad over 4,000 lbs. Pre-Malaise era cars weren't the horrible gas hogs people nowadays make them out to be (when they're tuned right)
Thanks for sharing your creation. Yes, you are correct in your hypothesis why it's getting better mileage. The greater the vacuum, the more the fuel will evaporate or atomize, and the better it will burn, giving the same power with less waste. Well done!
That's like saying a car will get better gas mileage with a dirty air filter -- lots of vacuum then; so why does it get less mileage with a dirty air cleaner?
@@TimK-1971 I wouldn't believe everything I see on CZcams. Especially claims where someone more than doubles the gas mileage of a motor vehicle. Isn't it strange that auto makers never figured it out to use lawn mower carbs on their engines.
I just found your channel in March 2024. The V8 is a good candidate as it has sufficient torque along with the steep 2.79 gears to shuffle the car along with the swirl and vaporization you speculate on. Now, add a second mower carb with a progressive linkage system that won't allow it to open until the first carb is wide open, along with your mixture leaning device adding more air only when needed you may hit the sweet spot of cruising range and the ability to have power for long grades or mountainous driving. Best regards.
Carburetors engines are most efficient at wide open throttle. The economy gain is largely from eliminating intake runner vacuum caused by the throttle butterfly blocking airflow. In small aircraft we often cruise using wide open throttle and control engine rpm with engine load by adjusting the propeller pitch. Selecting a carb that is going to operate at near max throttle during normal operation was one half of the success. The carb cheater is the genius second half of the equation. You will see less gains when you use a carb that isn't so close to max flow during normal use.
Wide open throttle on the carb does not mean zero manifold vacuum. The venturi on this carb is so small, that even WOT will be in a vacuum at anything above idle.
@AmericanLocomotive1 I guess you didn't brain the part where he's talking about sizing the carb for application not saying it applies to any sized carb on any sized motor.
41 mog while rounding up and spilling out a little bit. Honestly I wouldn't be surprised if you truly got 50+mpg. I would love if you could find some time to have it dyno tested. Also, you should start printing out hundreds if not thousands of those carb adapters. I want one.
Yes! My dad and I have said for years that the oil companies have had their hand in the pot when it comes to engineering and people don't want to believe it. Here's a really easy simple proven example. A V8 that gets 41 mpg...🤔🤯
Yes u could mass produce these. Do the adapter with the carb pre set up n it could make you some big money. I would do it. N I know many others who would too. Especially w the current gas prices
This is some old-school stuff he's doing. People started playing with this same principle back in the 70's and 80's, using motorcycle and small industrial engine carbs that could be easily tuned with simple screw adjustments and jet swaps, when emission compliance came out and vehicle fuel milage and power tanked for it.
About a hundred years ago someone made a run at getting extreme mileage out of a production Chev car. Tire presure was set at very levels to reduce rolling resistance. Tranny, and rear end wear drained and #10 motor oil installed. Wheel bearing grease was replaced with # 10 motor oil. And as you did the stock carb was replaced with a small engine carb. Anything that weighed was taken off. The mileage run was on a hard surface track. They would slowly drive up to 100 mph, shut the engine down and coast to a very low speed, restart and slowly increase the land speed back up. Not the kind of highway driveing we could do, but they could honestly say the Chev was able to get 100 miles per gallon.
I'd like to hear back about a running average on this and see if these numbers held out and also about how long the carb lasted. You may have it in another video, I'll be looking for that! Congrats on a cool project.
This, this is mind blowing. I'm wondering how well it would do in city driving. Considering how efficiently your setup works I'd think that number would be equally mind blowing. Talk to a patent attorney, today. Seriously. You are in the realm of GDI destroying tech for MPG.
Yah patent it and no one will get it after Mr. Elite buys you out after threating your life. Give it away and finally everyone will be free. Open source it the way to go. Vaporization has been around and their patented, and no one has one. Why?
@@BigTony_Garage engines that run on water... Steam engines come to mind. Very efficient. Check some out on Jay Leno's garage on CZcams. He drives them through town and on the freeway. I know that's not what you were talking about. You were thinking of a hydrogen powered engine.
Brings to mind the vehicle that Buckminster Fuller made using a flathead V8 and one single wheel in the rear. It was essentially the shape of a van and carried 11 passengers. It had a top speed of 90 mph and achieved an mpg of 30 mi per gallon. By some "incredible coincidence", the car had a pretty catastrophic accident when it was demonstrated at the world fair.
Back in the late 70's, early 80's, there was the book that's titled something like the "200 MPG" whatever. The concept is except for cold starts, your economy is better just running off vapor rather than liquid. A lot of the designs were just carbs that had the coolant routed through them to create vapor once the engine warmed. Really cool concept.
200MPG... LOL. There is only so much energy in a gallon of gas and it requires a certain amount of energy to move a given mass in a time period. an ICE is absolutely horrible as far as efficiency goes, but yes vapor helps carbs due to poor atomization. Port fuel injection with clean injectors and healthy pressure solves this issue. Also, from Thermodynamics, it would be better to keep the heat all in the combustion chamber because heat is energy. Those pesky physics comes along to remind you metal melts and fuel can spontaneously explode (pre-detonation) with enough heat and pressure. So, we ride a fine line between heat, timing, and combustion temps to acieve the best output. Also, FI has lean cruise mode.
@@kylefelts691 it's on Amazon. It's 200 MPG carburetor. I didn't say it's true, I didn't say I'm the author. I do remember a claim from reading it ONCE 40 YEARS AGO that someone had a Cadillac getting 55 mpg on the highway. The book is mostly pics of patents of carburetors and claims. 120 million joules seems more powerful than your solar panel.
@@blackhawk7r221 Almost like there was an oil crisis going on or something. Jokes aside, wish they would have put a little more development into alternative propulsion methods back then. Would have maybe shaved a few degrees of this global warming shit we're dealing with now. I live in the Netherlands. It's a direct threat to our way of life.
I literally cant stop sharing this to my friends. Seriously want to do this so inspired, could open so many doors for daily driving a vi old school, my dream. Dude you're a badass keep going
Well done Luke, that was very interesting. I always enjoy your content and the practical way that you approach each task - even if it started off as a bit of a joke. Looking forward to more of the 4 barrel tuning content. Cheers from Australia.
LOL I love the motor mount, I've had to do that before too! So I assume that shot @2:00 of you gettin it wasn't with the lawnmower carb... I wonder if it can pull a steep west coast hill with that Briggs carb on there. I like your wannabe Grabber. I miss those cars. Wow man, just wow! hella nice!
More of this please! I’d love making a V8 land yacht from the 70’s/80’s have ridiculous fuel economy like this. Dad was a mechanic, I know very little of that stuff. He drank way too much
My dad was a mechanic that also drank a lot .having 5 kids and a tuff upbringing didn’t help matters.I have a 1963 buick electra sports coupe and a 99 suburban I could use this set up on both of them
I think you questioned how this would do with the 390 Carb. That's exactly what I wondered. Seems like you would need to limit the amount of air allowed through the IAC Valve so the secondaries would still work, assuming it's a 4160, or integrate a throttle position sensor. I would imagine you could get some great results while the car is running on the primaries. Creates some interesting problems to solve. You have me very intrigued by this whole experiment. Guess we're getting close to the feedback carburetors of the 80's when taking it to this next step. It's been fun to follow these videos.
Those string alignments are sometimes far more accurate than the laser alignments from shops. I have had a shop give me my car back with one rear wheel being at +1* Camber and the other at -1.4* lmao. Safe to say I never went back to that shop, and shortly thereafter, they went out of business! You want something done right, sometimes you gotta do it yourself!
This is amazing Luke. I bet you could patent your intake plenum and there would be a substantial market demand to put this in production. This is the first time I've seen a legitimate system for getting significantly better mileage as well as drivability. Well done, it's good to see someone who can work with their hands and use their brain. 👌
According to Joerge Sprave from the Slingshot Channel, it's considered "prior art" legally once you post it up online like here on CZcams or other social media, so not likely he can patent it at this point. Also according to Joerge, who happens to be a retired patent attorney, this is often better for a small time manufacturer, because having the design in the public domain protects you from having to litigate patent issues in the future. It does open you up to have your design stolen, but it basically protects a patent troll from swooping in and suing you for a design that they later patent. This came up in regards to videos on Joerge's repeating bow design, which I would highly recommend checking that video series out. Really cool tech he came up with and I learned a lot about IP law in the process.
I am not a lawyer, but the info from Mr. Sprave that you quote really needs to be verified. I would strongly recommend that Luke look into patenting this, if only to prevent trouble later from patent trolls as you mention. Also, this would make a great article in a DIY magazine such as Popular Mechanics. I hope they consider it.
@@greatwatermeloninthesky7642 I agree, Luke needs to patent this yesterday. This WILL get stolen and someone WILL profit from his marvelous ideas and engineering.
Great idea and follow thru! I've always like the air leak tuning idea, just never tried it. Use it on a 4 barrel next, just to get stoic. 3d print a 4 barrel intake with a side lawn mower carb for the highway.
I used a Gm Carb on a Dodge 360 avg 26 Mpg. Getting 6 to 7 Mpg better then factory back in 1990.My theory was less CFM,s and smoother idle and better vacuum .Didn,t have as much power and didn,t care.Great Job never thought i,d see the day when a Ford 302 would sound so good.Thanks for sharing.
In the lab we use a calorimeter to measure energy in a burning sample We put a paint or solvent in a pill shell about the size of a Tylenol PM into a cradle Suspended in a solid steel canister and flood the unit with pure oxygen. We trigger an ignition and measure heat gain. It is not uncommon to blow a hole through the very thick steel. If you can find away to add oxygen to your carb without creating a blow torch you could generate. 100 x power Air us only comprised of 16 percent oxygen and the rest inert nitrogen. If you could add an oxygenator you might get 100 - 200 mpg. I like the way you have a grasp on fuel ratio. You can buy an oxygenator for a 100 bucks but if you use a bottle from air gas you might be able to find bracket and components used in nitrous kits Of course this would be a dangerous quest as the power of pure oxygen is incredible But this would be the key to obtaining a ludicrous mileage
I once had a 1981 Plymouth Turismo that got about 100 mpg. The guy I bought it from in 1995, told me he "did something" to the engine and I'd love the mpg. He wasn't kidding. That first week, I drove over 400 miles on 4 gallons of gas. I know nothing about engines, but have wondered for 27 years now what he did. This video might have finally answered that question. He was also a lawn mower repairman!
Do it!!!! Do it real nice and deep like. 😉 Also dude your onto something potentially huge. I really hope you do more with both the lawn mower carb and the carb tuning plate. I really hope you get to a point of where its perfected patented and your mass producing and sell kits and packages for both. Im very proud of you and wish you the best of luck on this endeavor. Keep going bud. You won't regret it. 🙂
I recently bought a 1976 F350 with a 302 Cleveland. Now, I knew what I was getting myself into, but I always had the overarching feeling of "yeah, this ain't ever gonna be a daily driver, more like once in a fortnight. The fuel price is gonna be crazy". Now, after watching this series and actually seeing that options are available, adjustments that are not excessive can actually be made, and making it a somewhat reasonable vehicle to drive isn't nearly as impossible as it once seemed; its just about working using logic and information that is readily, and adjusting to what the conditions allow. This video was an eye-opener for me, so thanks a bunch, and I can't wait for the continuation of the series!
302 was a Windsor and the closest to a 302 Cleveland they made in the USA was the Boss 302 which was a 302 Windsor with Cleveland heads on it but they are rare.
By itself, this video is out of context -
This video answers all of your lawn mower carb questions: czcams.com/video/gmPtCmL-Ldw/video.htmlsi=ZXmfEXXmKuxU79Lr
there was a guy who did this in the past and it didn't end well for him... he added some electric part to atomize the fuel as well and claimed to get even more MPG, be careful
@@VenturaITfunny you posted this just now and my buddy was just talking about this the other day. As well as this guy's last post appears to be from over a year ago... 😮
Wow, I been working on getting a 66 to 69 Ford Bronco, Would you be will to convert for me if I come to you? I am in East Texas.
No ,Stay Safe
Similar to the Usher vaccum chamber.
This simply proves the technology for great fuel milage has always been there...no money in it for oil companies/ politicians.
Yes, they have created Fuel injection as a gimmick to sell more cars and to waste more fuel to sell more fuel. In the USA you simply can not import some high MPG European cars.
Let that sink in.
Like the Mercedes Smart car Diesel, that is getting 70 MPG, can not be imported in to the USA.
@Bass N Brass and once you have that a new flavor of the month will be there to keep you divesting your money. cant have the plebs building wealth by inesting in things that increase in value over time afterall.
@Bass N Brass Yep some dude made something similar back in the 70's super efficient carb but suddenly he went missing. Those big oil tycoons & governments don't like the common people messing with their profits that's for sure. The world out there is a nasty place you have to be careful who you step on, but I don't think it's too much of a risk now days the criminals are moving over to EV's you're right there Bass N Brass.
you'd be surprised how much gas you'd save if you let your car naturally (and obviously reasonably) slow down to your stop. On my Corolla iM I get like 35-40mpg on the street daily. It's not the acceleration so much that messes with your mpg as the sudden stops... just wasting all that momentum.
@@KOSAMAGAMES underrated comment. Hate the ppl who honk at you when you're doing that when the light is RED!
The carb cheater ties this all together nicely where the static carb becomes fairly dynamic. Should I do more with it, or is everyone pretty tired of the engineering stuff?
MORE!!!! :)
More - I love the engineering and would love to better understand the cheater better!
Uhh, more of course? Carbs are incredibly more interesting than any form of fuel injection will ever be. Just how much MPG can you grind out of this old rod, and do you think it's possible to do so well on other carbureted engines?
Definitely more
if you can reproduce this result consistently you should try to get a patent on the system and get with a company to start making kits. in this economy you might have a gold mine brother.
The best thing about owning a car like this is that you can say “oh I just hit a board with a nail in it” with a positive tone in your voice.
Tires still cost the same no matter what year the car is. But plugs are cheap and sure this dude can plug a tire...
What's the joke
@@sgasI didn’t know either
@@sgas because if you hit a board with nail in it while driving your brand new gmc Denali you would probably be pretty fuckin mad
@@BlackElephantProject I wouldnt..
This is just the type of work that actually makes CZcams suck less. Wonderful work and insight into the issue at hand. Your controlled vacuum leak observation is a great fundamental solution to the problem. Is it just as simple as the atomization? It may be.
Sure it is.If you sucked liquid in nose you would not work good. Think of how refined oxygen is. We spray feul almost puts fire out that way.
Homey smart meh!
They could run it just on vapors
I am a mechanic for over fifty year, mostly Ford, and am very impressed by your results with this 302 lawn mower carb results. Wish you were my close neighbor, love to trade information. You've got it together!
You actually believe this bull $hit? I'm surprised a man of your experience would believe this bull $hit. 31 years in the industry myself. What about A/F ratio? Is it stokometric or even close? If it's too lean the N0X emotions would be through the roof! How's the power, driveability? I call BULL $HIT!!!
Well said!
my dad always said there was a 40mpg carb that the oil companies purchased and put on the shelf to protect their businesses. Imagine if cars in the 70s put this on non-performance models. 40MPG on v8s
Ya I’d like more information as well
@@superchuck3259 oh there 100% was a carb built a long time ago that got insane MPG but got silenced pretty much.
You’ve created a Hot Rod Power Tour holy grail!!! Just in time too! Those of us getting 9mpg will be thrilled when production starts! Very awesome video series man.
Dude I was just thinking this
He should absolutely manufacture and market this. This seems like a great, relatively affordable way to at least stave off (if not prevent) the death of the V8.
Just when I'm in the market looking for a 92-94 blazer k1500.
@@elrojo4379 Those are TBI amigo.
@@Kstang09 oh , ok, see I know how to replace parts but lack knowledge on engine, transmission and wiring. I just remember it have a carburator.
I rebuilt carburetors for a lot of years. (yeah, I'm olde) I also "RUN TESTED" my carburetors on a test engine. A mostly STOCK GM 5.7L with a performance cam, but GOOD vacuum at idle. I ran a 4 bbl manifold and built flat plate adapters for various carburetors as needed. It became a source of entertainment to run the 350 on a 4 cylinder carburetor. BUT - it DID run. I do miss those days ... We did have FUN with this stuff !
maybe u guys need to get together....and a manufacturer . We need not 24/7 crap. This can heal. People could sleep at night and be healthy. There is SOO much more here ....Think a vulcher losing grip on its' prey... wars. Destiny of humanity, still on Earth...and Earth itself! Education revisited . Yes shaking hands, our cells know when it is right........Once you take transportation obstacle out, next is new shelter., healthy food, education for all with great debates for betterment........we are talking the POWER OF TRUTH HERE!!!!!!!!!! The KEY TO RID EARTHS EVIL IS TRUTH!!!!
god bless you.
I saw one on CZcams who ran a 350 chevy pickup on a home made intake box branched out to several chainsaw carbs. It idled well and would go well enough to get on the freeway, as it basically ran on vaporized fuel.
The engineers that build your current vehicles have known about this for many years, but giving you that kind of fuel economy isn't in the best interests of the oil companies, politicians who are lobbied by the oil companies and the vehicle manufacturing companies. Along with planned obsolescence and cheaper materials, heavier vehicles and more expensive fuel we are screwed. It's all about the almighty $$$ and how much of our paycheck they can take!
@@stevet5379 100%
This is one of the most informing, entertaining, and innovative car videos I’ve seen in years!!! You are great on camera, I love your humor, and you are thorough in your explanations! Good to see another Iowa guy pushing the limits and stepping outside of the boundaries!
-JR Kingsley IA
This is actually just the end of the 3 part series 🙂
@@ThunderHead289 I’ve recently watched a bunch of your content, and not only am I very impressed with your lawn mower carb testing, but also your electronic monitoring system overall! It’s super rad! Love your old ford farm truck as well. Wish the prices were what they were when you got it. Finding one worth buying for what they’re asking in NW Iowa is tragically overpriced. Thanks for all the content you put out it really is great stuff!
This is totally mind boggling man!! Please take this on a 200 to 300 mile trip and report back to us.....PLEASE!! You have definitely hit on something big here!!! Also, would love to see a dyno pull just to see what it's producing.
I absolutely agree
1/2 the power for x2 fuel economy ta daaaa mystery solved
@@myusername111yup lol and unless he's got his AFR all set up properly wouldn't be surprised if it's running lean
@@MARIOMAKER-wk8vyIt wouldn't be lean because the carb is a major choke and only lets in enough air for the amount of fuel
And at the Dyno it all becomes clear he has half the power.
There is no magic carb that saves 50% if your mileage. Only on CZcams...
And after 3000 miles nice wholes burned in his pistons...
I'd love to see a longer test drive with this system, like 200 miles of highway to get a better figure on MPG.
This is amazing, keep up the great work!
My thoughts too... Why not take a 200~400 mile road trip for science.
With tools, of course.
Agreed. Do a round trip back to the same exact pump same position at least 5 gallons worth of fuel. You’ll get a close to scientific measurement of fuel economy. Both ways exclude air/wind mostly.
Drive it around town in busy traffic for a couple weeks. See how it stacks up for the life most drivers endure.
@@barbmelle3136 👍👍👍👍
he did he said he drove it for a week
Don’t be surprised. Your right about the vaporization of the carburetor but a big difference is the leaner mixture due to your controller. In my twenties I took a Fiero Gt 2.8. bored and stroked to a 3.2 with some performance enhancements and balancing. 30 mpg then added a potentiometer to the O2 sensor to fool the ECM, giving me control to lean the mixture. bumped mileage up to 38 mpg without any precision monitoring system. Didn’t lean up too much because that would burn out the catalytic converter and over heat the engine. So in hindsight I learned from my advanced engineer dad , who created the PCV valve , that Catalytic converters require unburnt full to operate. That means our modern cars with multiple CATs waste fuel so the Cats can absorb non combusted fumes so they too can burn and glow at the right temp for the catalytic process to occur .
Cool. Brings me back to my 4door 302 Comet. Was "Grandma's Car" and her grandson didn't want a 4 door. What a fun ride for $300. It had 34k on it.
My ex took it to college and I never saw it again. At least one of us got a deer that season.😊
Womp womp.
I love your unpretentious and humble attitude about this experiment.
And it's actually a brilliant experiment.
I concur, Sir! You have a new Subscriber, and All notifications from me. If I could give you two thumbs up, I would! Fellow Motorhead, with veins coursing with Royal Purple XPR!
The engineers that build your current vehicles have known about this for many years, but giving you that kind of fuel economy isn't in the best interests of the oil companies, politicians who are lobbied by the oil companies and the vehicle manufacturing companies. Along with planned obsolescence and cheaper materials, heavier vehicles and more expensive fuel we are screwed. It's all about the almighty $$$ and how much of our paycheck they can take!
I was an engine machinist/builder for JMS Racing Engines...we were in all the magazines. We built engines for the top Sportsman class at Willow Springs and everyone with our engines finished in the top 5 every race. This class was limited to 350 c.i and a holley 390 cfm 2 barrel. We got over 430hp out of these engines on our dyno. We did cheat a little on the c.i. but the point is that you dont need a big carb to make power.
High quality fuel + tuning. Seen what an experienced port-n-polisher can do with a stock block. Shows even tried and true designs always had more room for improvement
@renosimpson9611Nah dude you can totally inhale way more chronic with those huge bongs! LOL kidding obviously, but great point/analogy.
It has been proven that a bigger carb always means bigger power. I guess if you are using a small cubic inch motor that doesn’t physically need more airflow it wouldn’t matter. But if that 350ci motor with a 2barrel 390cfm makes 430hp you could easily make 550hp with a 600cfm. Richard done this test on a 292ci 4.8L and 326ci 5.3L and a 364ci 6.0L and a 408ci he done test with a Holley 500cfm -650cfm-850cfm and 1150cfm. Every motors made more power down low with the smaller carbs. But they always made more peak power with the biggest carb. Unless it was cubic inch limited. Say the 4.8L the 4.8L stopped making power when the 850cfm was installed. It made les power initial throttle hit after 1150 was installed. It flat lined around the same as the 850cfm . The motor couldn’t physically pull anymore air in.. now the 408ci gained power everywhere with the 1150cfm over the 850cfm other than first initial throttle hit. It was the same or slightly less. Only reason why is because the smaller carb had more velocity at lower rpms vs the bigger carb. So it recived more airflow on throttle wack. But once the rpms got up the 1150 velocity woke up.
@@Smxsucks That's not always the case. You can do all kinds of things on a Dyno, but the difference in the real world between a 600 and a 750 was a couple tenths in the 1/4 with all my cars
Maybe you just bad at driving?..@@sadmachines6991
Holy shit batman! My uncle did this back in the early 1960's and got almost 50 mpg on his V8 Chevy Impala. No one believed it. No one cared because fuel prices were so low back then. When he attempted to obtain a patent GM bought him out with a deal that he "could not refuse". He was paid cash and they provided him with a new car every two years for the rest of his life. Just goes to prove that if our government was really serious about saving the planet we would be driving with some of these modifications today.
Of course that happened. We REALLY believe you.
@@alexandria6063 I have to fix my 95 f150 computer because I keep stalling out. A new one is like $300. But I can refurbish it myself for $10 worth of capacitors that I can solder on myself. There's a place for computers, but "modern" cars have gone too far toward becoming tech devices instead of transportation.
Frankly I have a hard time believing that
That’s just detuning.
@@jamiel9902 Carbs have a sweet spot of perfect mixture but only for a certain level of the air flow. So a big carb will have its sweet spot on certain airflow while the small one will have it at low airflows.
Since the best mix is 16part of air to 1 of petrol ... this is the target ... but very difficult to obtain for all the real engine loads situations in daily use.
For a track car engine things become much more simple...
But since the engine displacement= volume is always attempting to pull the same amount of air despite the engine load required ... it becomes difficult to find the perfect balance in sizing the carbs and obtaining the mix required.
This was the most enlightening and inspirational video ive watched in a long time. Ingenious work. Thank you for publicizing this.
When others say add "X" to your engine and get double the mileage you know it's bs. But uncle Luke is a sceptic from the start and took what started as a joke into something practical. And explained the engineering in a way most people can understand, as always.
Hats off to you sir! Thank you for the quality content and yes I'd love to see you try the carb cheater with the bigger carb as well.
Keep your head on a swivel for the big oil guys though lol.
Skeptic
Big oil has a new enemy, electric. If fuel economy preserves internal combustion, then they should be on board. Car guys, on the other hand...
@@nathanbopp6163 It's not big oil that has a problem with EV's its the government tax systems that hate thme because they don't know how to squeeze all the same tax revenue off them yet.
Reality is big oil would love to see us all drive vehicles that use half the fuel while charging us twice as much per gallon so they could sell us half the fuel they do now for twice as long into the future.
The problem is the big government would lose badly on the taxes and all the other related 'fees' they skim off the system from oil well to gas station.
Big oil only makes about 10 - 20 cents per gallon off things while big government gets 2 - 3x and in some states like california 5+X that off that gallon from end to end.
@@nathanbopp6163 big oil makes money off of electric. What do you think powers the mining equipment for battery metals. As well as powers the ships that traverse the oceans taking those metals to manufacturers. Big oil ain't scared at all.
@@handsonlatham7802 Yep, Big oil powers much of the generating systems they need to make EV's work. Zero problems for them on that part given how little work big oil has to do to supply fuel to those systems.
This proves the point of the comment I made on the 1st video of this series about people here on Mexico swapping big carbs on their V8's to the smaller ones that came in sedans or light duty vehicles that had the same engine, (or even from 6-cyl engines I might add).
As I said in that comment, the smaller carb probably kills a few horses, but they do save up some fuel.
The way he was smokin those tires I don't think he's losing h.p. definitely not torque. You do know the definition of torque don't you?
@@rexandexler575 he is def losing hp
@@rexandexler575 I think he lost horses, after all top end will suffer more than low end. He also mentioned in the video a "controlled vacuum leak" which is just a fancy way of adding a carburator bypass. The extra air and a small carb that runs rich most of the time makes this a very efficient way of reducing horsepower in the low end, and keeping plenty of power for the top end.(maybe less than the large carb would have)
And you don't just lose hp when you run a engine lean you eventually blow it up
This is a scam people don't try this
@@DNANDROID lol do some research
Hp= torque × rpm /5252
And by the way torque and hp will alway meet at 5252rpm on a dyno graph
Holy moly 😲 this is incredible! I recently got an 1989 Ford F-150 300 straight 6 and 40 mpg sounds like a dream! I might have to learn some engineering/mechanics... just wow! Awesome stuff.
I’m very intrigued by the series. I am really looking forward to see what else you come up with! Great content especially for a new subscriber. I’m glad I found your channel.👍😎
I would love to see a long term mpg test. At least 200 miles. Taking it on power tour would be epic. I would love seeing a few more videos on this setup.
A livestream of power tour with a camera angle on the fuel tank would shut all the naysayers.
Agreed. Bet much less than 41 mpg with a real test.
I like to see a 1500 mile all hwy test
One needs to install a dedicated odometer. The Maverick's is found on road dead.
We would have to have a controlled experiment with multiple participant vehicles to see if we can eliminate variables and figure out if this really works. THAT WOULD BE COOL!!!
I just have to say, this man is like the Moses of automotive tinkering. Someone on facebook said "You can't" and this man went full rocket science, made it work like a dream, and then pulled out receipts.
nay sayers are actually people who never do anything themselves
@@omegarugal9283 Or people that understand the basic principles of physics.... and no better fuel atomization doesnt quadruple your fuel economy... the tiniest, carb, with all the bends you'd ever imagine won't give better atomization than direct fuel injection.... and this motor with that still wouldn't see a 4x increase in fuel economy.
@@dustinleavitt7770 you say, but i have done a lot of mods like this and got my own results
@@omegarugal9283 your getting 40+ mpg out of a 3500 pound car with the aerodynamics of a brick .... Then you should clearly go make millions as the head engineer for a car company! Your clearly the smartest of them all.
@@dustinleavitt7770 so you dont believe the video you just watched? Sheep
Great job man I thoroughly enjoyed this and who knows about telling people bout it we all know the whole MPG dealio like pretty much a lot of things in this world are not to their full potential and kept there for a reason.
We love it here man
I love the engine hold down chain for a broken engine mount!
When I bought a used 1971 duster in the eighties upon lifting the hood I discovered that unaware of the chain repair they had trimmed half of the fan blades off to avoid contact with the hood due to a broken motor mount so after I fixed it temporarily with a chain I still had to get a fan .this was to be only the beginning of the trauma as I went about restoring this car .only to have a truck total it as it neared completion probably a good thing as I would have probably drove to fast and wrecked it eventually anyway!
@@danielcline7413 I had a little dent in the hood of my 66 fury from when an engine mount broke!
@@grayharker6271 thanks for the reply I'm not that old early 60s but you know what I miss about old american steel you could buy a car like the duster I mentioned over 100000 miles on it for a hundred dollars and drive it off it might not run or handle great but between your friends and such you could diagnose repair and drive it no computer hassles easy to get parts I miss the good old days
I did the same thing on my '76 F250 inline 6. It rotated too far once and broke the fuel line spraying gas all over the engine which of course burst into flames. I was two blocks from home so I ran, got an extinguisher and ran back thinking it would be a total loss. Put out the fire and after it cooled down I inspected the damage.....one burnt sparkplug wire! After that I chained her down.
@@charleshultquist9233 I've had so many similar incidents that heres a confession my nieghbor was working on an amx distributor the point variety very low hood and somthing told me to tell him to make sure the ignition was off but I didnt.and as expected he started messing around with the feeler gauge I'm watching out my window and then as I knew what was next the double whammy first the shock and then the withdrawal impact with the hood .at the time I guess I got somthing out of it watching it happen to someone else now I'm kind of maybe a little bit sorry anyways sorry to dump my confession on you thanks for the chat anyways
Great job!! In the 1980s, before EFI became commonplace… Most major manufacturers had electronic carburetors of some type or another, that used a pulse-width modulated fuel mixture control needle, versus your PWM air bleed concept.
This has been fantastic to follow along with!
That’s kinda how my Stihl chainsaw with m tronic works. It controls the fuel with some electronic fuel valves.
They also sell those for carb motorcycles made today. they are normally drop in replacements to help with starting and power
@@pleasedontwatchthese9593 Sounds like the electronic motorcycle carbs would be a good pre packaged option
They always had issues with electronic feedback carbs back then too. Everything in the carb and on the engine with it's mounds of vacuum operated emissions system had to be working correctly for the MC solenoid to function correctly. There was always issues when they came into the dealership to get worked on. Fuel injection came out and made things simpler and easier to work on.
@@FishFind3000 I know a guy with a 1970s Volvo with k-jetronic analog fuel injection! It's very cool, and works very well!
You need to burn more gas to get an accurate mpg reading. Drive highway until you're less than 1/4 tank and calculate based on the odometer/trip meter and gas to refill. Repeat in city driving conditions (if such a situation even exists in Iowa lol). I would also be interested to see dyno numbers compares to the 4 barrel, just out of curiosity. Great video series, very interesting!
Agree!
yes please do more testing. these are amazing 1st results/.
I’d be surprised if it makes more than 50 horsepower to the wheels and 100 foot pounds
Just drive it around for a couple weeks.keep track of your numbers. It would be realistic mpg.
Most of us don't ever see true mpg.. because of our foot and driving habbits.
do like mythbusters, put in a fuel cell, measure out the fuel before and after under different driving conditions, will give more accurate results. Looks good so far though!
What a great channel. Our best man back in the 70's owned a blue '73 Maverick (aka Blue Devil) with the inline 6. He added headers and high flow exhaust - made that car run like a scalded dog.
My first new car was a 1976 Maverick with the 302 and a 3 speed with a floor shiftier. I re-tuned mine, that started with a 2 degree timing increase, I took a bit off the accelerator pump action for a smaller squirt, and I added a vacuum gauge. I swapped the stock rear axle for a rear end from an automatic car to get a lower more fuel friendly highway rpm. When the clutch started to die I swapped in a 4000 lb Zoom clutch kit which quickly broke my clutch adjustment rod.
To improve the handling I added big front and rear Addco sway bars, air shocks with individual air lines so the car didn't swap air from shock to shock stabilizing the rear roll, traction bars staggered right for an almost positraction takeoff, 5 spoke mags shod with white letter B F Goodrich 60 series tires, and a free flow turbo muffler dual exhaust.
My tweaked Maverick got timed for a 200 pus a few miles run at just over 140 mph average speed. On the other side at a steady cruise watching the vacuum gauge to keep as light a foot on the throttle as was possible my Maverick got 30 mpg even though I drove the 300 mile test in a driving rain running 60 series tires. 30 mpg for a car that can run over 140 mph for over 200 miles is fairly amazing.
I have often wondered what would have happened if I had the internet to use for building a water injection system so I could run even more timing advance, plus could I have taken even more action off the accelerator pump action using water injection? What if I had easy access to the modern timing chain components to advance the cam timing as I've read the smog motors often had retarded cam timing to get the emissions required.? What if I cold have swapped in a modern 5 speed? Maybe lowered my Maverick an inch or two for less under car air drag? Maybe a belly pan to cut air drag/resistance under the car? Could I have hit 40 mpg?
That's amazing! In all honesty I didn't think the gas mileage would be so good I figured MAYBE 25, 30 but definitely not 41mpg congrats, you honestly deserve a the proper recognition for what you have accomplished, my hats off to you!!
ok lolol
32 in a 4.3 v8 caprice is common and 26 in a V8 80s diesel chevy truck
I'd love to see how this does on a dyno. Also, try that setup on a 4 banger and see if you can get 50-60 mpg.
It is a four speed manual.
I was going to say that. Put the same set up on a old carb 4 cylinder engine.
@@blipco5 He meant 4 cylinder engine, not 4 spd transmission. Needs to find something like a SVO Mustang engine and do a full build on it with all the cool parts.
Some late 70s Hondas can already hit that
@@blipco5 A four-banger is a 4-cylinder engine.
Really cool and well analyzed theory and process. Honestly, I think the little carb with the twin air filter intake looks sick under the hood! I love it! Great content. Subbed!!
A friend and I did something simular,, we did it with an 88 Ford escort station wagon. The car got 66 mpg. Lawn mower jet and increases fual pressure. It atomizes the spray. Also we preheated the fual at the carb, so the temp change shocked the partials. It's really good to see someone do what we did as every one says it was bs. Thank you.
Nice
My Boy Scout leader was into pure engine oil. He had special filters so that once the oil went thru the engine it was impossible to have wear. Something about micron sizes etc. He also had a vacuums meter and would try to keep things in check to save fuel. But there were some huge hills and he did floor it, that was fun. 8 cylinders roared!
1 how did you heat the fuel?
2 what size carb? what size jet
3 if you remember what was fuel pressure. thanks.
@@superchuck3259 iirc its called a "bypass oil filter" its an oil filtering system used in conjunction with the standard filter system but utilizes much smaller micron filters. Basically it adds an extra step in the filtering system basically a scrubber, without forcing all oil to go through the bypass filter (the low micron filter size causes reduction in flow which is why it cant be used as the primary filtering system)
@@User-sw8gb
1 We wrapped the fuel line around a glow plug to heat it up.
2 It was the original carberator but with a 6 inch neck on it, giving a little more time for mixing and to brake down, The fuel jet was from a lawn mower, the smallest we could find.
3 I don't know the actual fuel pressure but we replaced the original with a high pressure rated pump from a truck.
Forgot to mention that we installed an air pump that worked right off the surpetine belt. I think it was a turbo jet.
We had an O2 rich mix which we thought would be good if we wanted to add a second fuel jet as a "turbo boost", The car though could get up to 105, But the acceleration was nothing to talk about.
The MPG testing we did was from Savanna GA to Knocks TN. We averaged 85 on the high way. That was the only time we really did a MPG measurement, From the Ride up and back.
The car got totaled when my friend got T-Boned as some idiot ran a red light.
It would be interesting to see how much power the mower carb could put down. If it's anything decent you better watch out. The oil and industry hit men are coming for ya!
@LabRat Knatz can you imagine? "We solved the chip shortage". LOL
At this point they might welcome this actually. They got much bigger problems coming up with electric cars, not to mention the government wanting to ban gas cars all together and force everyone on electric, hell they announced in CA that no more gas cars can be sold there after 2035 I believe. My suspicion is that this also substantially cuts down on emissions as well which would please our commie government. Ironically the one thing they were against, suppressed and silenced at one point may now be the only thing that can save them.
@@johnmurraycompton569 The chip shortage isn't really for EFI but like everything else around it. Motorcycles with EFI have returned back to normal prices because the tech needed to run just a engine is really basic
That’s not a joke, it’s happened.
Politicians talk a good game, but they don’t actually want people getting good mileage.
The geo metro got 50 mpg in town, I had one I know. Why couldn’t they have improved upon that instead of burying it?
So impressive! And it's on a "Maverick"!!! Fitting name for this project 👍👏👏👏👏👏😎
Cheers and beers🍺🍺🍺 to ya from Canada 🇨🇦
The chain in the engine bay.. Quite remarkable. Love your work mate!
I love this content. I always thought there wasn't much engineering you could do to improve an old carburated engine but clearly I was wrong. You are awesome!
I personally love this sort of content. Keep the engineering stuff up. Making new solutions for old problems is very interesting.
Very cool my man, neat to see you were so excited you were shaking. That's what the good parts of life are made of right there.
My God. If someone would have told me that having a screwdriver keeping your glovebox closed looks cool I’d think they’re crazy. On this car it just looks part of it! Awesome
This is great! My dad used to fit smaller carbs to bigger engines as well, but he's theory was that it would restrict the fuel supply, I think your theory on atomization is more plausible.
The most common mistake that was made on kids cars when I was a teen is using too large a carburetor. Most contests we had were light to light and torque won out every time. Sure, you could build a 301(3" stroke 4" bore), spin it to 8000rpm, if you balanced it well and used white pump gas, but even a 625 CFM carb was a little much. Any time you are blowing out black smoke, that is unburned fuel.
@@route66paul That's a good one I'll be back tomorrow afternoon and I'll have to check out the set up.
Dude, this has been such a cool series! I would almost convert my efi 302 back to carb if you were selling this as a kit. Awesome video.
Totally worth a check engine light.
@@fairlaneboy66 “check engine light” yup engine is still there and getting better fuel economy. EFI can take a hike.
Totally worth a blown engine because you run it too lean this is a really bad idea
@@markm0000 lol you can do the same thing with a efi and no need for all these stupid contraption
You could run as lean as you want with efi and a xouple of key stoke on a keyboard bjt it atil the dumbest idea evwn you cgonna end up with a blown engine
@@legros731 until you run 2 brand new engines on a dyno to compare this contraption to EFI engine wear you have no ground to stand on.
My daily ride is an old 2007 Toyota Corolla , small 4 cylinders 1.8 liters engine . 4 speed automatic transmission. I can’t get more than 33 miles per gallon in the highway and much much less city only . You’re doing miracles there man, carry on
Many years ago I knew someone very into building high performance engines. One of them used a fairly strange manifold with 2 four barrel carbs and one two barrel. The two barrel was very small but it was the one that actually had choke and idle and the like on it. The four barrel units were fully closed about the 1st half of the travel of the pedal. Just driving it here and there, he got over 30MPG. Doing 70MPG was just about fully open on the two barrel and the linkage to the four barrels hadn't started moving yet.
My 79 year old boss, who I worked for 6 years ago, he told me a story of how the original Ford Falcon had a backfire "screen" on the intake manifold, under the carburetor body, so prevent the engine from backfiring and killing someone.
Apparently it was a common thing, when early day mechanics would work on carbureted cars, when they would do a tune-up, they would have the ignition timing off, and the engine would load up, then backfire through the carburetor, blowing a huge fireball into the person's face, and the problem is, the mechanic would "inhale" violently as a scared reaction to the backfire, sucking the fire into their lungs and dying.
This problem required a "screen" mesh to be put on the carburetor. My coworker said that the first Falcon's with this "screen" on the intake manifold, made something like 30 mpg, and so Ford immediately removed the screen, and mileage went down by about 50% - back to normal. The screen apparently caused super fine atomization, which made it burn twice as well.
The engineers that build your current vehicles have known about this for many years, but giving you that kind of fuel economy isn't in the best interests of the oil companies, politicians who are lobbied by the oil companies and the vehicle manufacturing companies. Along with planned obsolescence and cheaper materials, heavier vehicles and more expensive fuel we are screwed. It's all about the almighty $$$ and how much of our paycheck they can take!
I call bullshit
I've been a Ford dealer tech for almost 30 years. I've heard stories that a properly set up VV carb is the closest thing to fuel injection, without actually having it. VV carbs are somewhat dynamic in their operation, but work differently from your set up. I also don't think you'd get anywhere near the fuel economy that you're getting. It is impressive.
His is more akin to port injection with an idle air control valve. He may not know it but his tuning is very well done for mpg efficiency. He is essentially running on gas fumes but can dynamically rev it high for more power(and lost of gas). I doubt he will get much for speed but noone needs a fast af car. His system is very seamless when it switches from fuel efficiency and more power. 40 mpg is very possible on most V8s.
Ford-Europe actuallly used VV-carbs on the Taunus/Cortina 1.6L OHC Pinto engine. (my 1980-1982) If you ran the car gently it would get pretty good mileage. Better then with the older conventional carb.
Ain't those VV carbs just worse Su carbs? Or motorcycle CV carbs?
@@acters124 it’s running rich until he opens a secondary fresh air valve to get the proper ratio mixture (controlled vacuum leak). Watch the series on this build and he explains.
@@jfv65 Ford used a VV on the 302 engines around 1978-1979. My father had a 1979 Crown Victoria with an original VV carburetor.
Great video, I've been a fan of 500 cfm 2 barrels in my pickups on 390 v8s, had a lot of people tell me that was too small...but, I really like the way they perform, been running them for over a decade
This is so cool, great video man! Love it!
I had a 74 Ford Maverick with a 302 automatic back in the early 80's. Loved that 302. My Dad and I were always working on cars in the yard. This carb trick would've been something I would've tried back then if I thought of it. I enjoyed this series of vids. Thanks!
Wow!I believe you're correct about the atomizing of the mix,it surely does more than my expectations, as far as the overall drivability. I've never had the financial ability to do many of my ideas, and I'm glad to see someone with likewise understanding to finally accomplish a very worthwhile endeaver.MY HATS OFF TO YOU BUDDY!
Old motor head here. Just found ur channel...GREAT STUFF!!! Screw the haters. Back when I was building and racing late models I did modes that guys in the pits would whisper "he's a wack-o thinking it'll make a difference." But I only ran motors that came out of the junkyards...small block 4-bolts out of junked pickups. With the tweeks I did, e.g. jetting the carb differently on the left v right because of a slight difference in centrifugal force ( running oval track, as they joke, go fast...turn left ).
Haters will hate...it seems to be their call in life: don't ever do anything, just hate on anything that anyone else does.
Best to u my friend...I'll be watching.
the average beer-head is run down they want to reduce everyone to their level. come to think of it - actually it is the average person. " when a pick-pocket meets a saint
, all he sees is his pockets. "
Haters might just hate, but gullible people will swallow an unbelievable level of bullshit and believe it's true. If you raced, then you know you can either use gas and make power or not use gas and not make power. The carb doesn't have anything to do with the energy content of the gasoline.
All racers are whack-o's. That doesn't really matter. Did you win races? Then we find out if you're whack-o, but clever.
This is about fuel economy not speed. You won't be winning any race when you are trying to save fuel. Most people say bull haven't even tried it first to prove their point so the bull people are full of it . I want the see it don't work I seen many that do work. Right now does work won. 73
The engineers that build your current vehicles have known about this for many years, but giving you that kind of fuel economy isn't in the best interests of the oil companies, politicians who are lobbied by the oil companies and the vehicle manufacturing companies. Along with planned obsolescence and cheaper materials, heavier vehicles and more expensive fuel we are screwed. It's all about the almighty $$$ and how much of our paycheck they can take!
Humans are like crabs in a bucket.
Reminds me of a Ford Fairmont my dad had years ago with the 2.3 L carbureted four-cylinder with a five speed manual. It also got around 40 miles per gallon. That was all while meeting emissions standards and delivering power that was adequate for the time in a midsize car.
Still, a great project with clever use of modern close looped devices. Would be a good project for someone on the flats such as yourself who wants to turn an old piece of American iron into a fuel economy champ
This is just insane to watch. Youre onto something groundbreaking, please continue for everyones benefits. Innovative and inspirational. Great job, cant wait to see more
He’ll get suicided by big oil before he’s able to help anyone.
It’s happened to 70+ people in this industry
@@blackfacegaming191 source; your ass/ conspiracy theory Facebook group
He's gonna mysteriously disappear bruh
This is amazing, I love it! You're 100% correct about the fuel atomization too. The smaller carb is greatly increasing the air velocity which in turn increases the turbulence, which atomizes the fuel better. The only downside I can see is your horsepower cap based on the intake restriction from the small carb, but I'm sure you knew this would be the case.
Personally I'd like to see you try this on a late 90's 4 cyl car, like a Civic or a Cavalier. Cheap to buy used with light, more aerodynamic bodies. Ditch the FI, swap in a small carb, and test/tune. Wanna bet you'd pass a Prius for MPG's?
THEY made sure carbs were taken out of the equation for more than one nefarious agenda one of which was making sure there is an ecu on everything we have. Carbs have a lot going for them where here in Japan we still have 1996 carbed daihatsu Kei mini van that gets 56mpg vs the latest high tech daihatsu, suzuki and honda mini vans which only get 40mpg and match 56mpg with latest stop start no idle technology.
@@altruismfirst6489 I'm not entirely sure about this statement. "THEY had a nefarious agenda to make sure all cars have ECUs"... So, is there something wrong with EFI? I mean, there's also mechanical injection as well completely without any digital modulation, and even mechanical injection ports have proven to provide a noticable increase in thermal efficiency.
I do admire something about the carb communities: It's dirt simple, cheap and easy. Just very far from efficient.
@@bluspectre2042 it's like 15% or less efficient, if you dyno tune a carb it can be brought into the single digits.
what can go wrong with efi? 8+ sensors, high pressure pump (in the freakin gas tank), plugged injectors, ecu, fuel filter (under the freakin car on most) catalytic converters.
what can go wrong with carburation? fuel pump (front of engine 20 min fix) fuel filter (next to carb 10 min fix). not to mention the price to replace those parts.....So yeah there's a very good reason to be pro carb.
Tiny Turbo! Tiny Turbo!
Would you sell me your maveric? For 7,000.00?
What really stands out to me is the chain motor mount assist. Is a marvel of engineering. I totally love it.🤙✌️🖖
Saves on motor mounts lol
Ah man this brings me back! So want that car now. High School could only afford a cheap car of course so you focused all you money on the engine and brakes to make it "reliable". Awesome video!
That torque strap chain brings back fond memories of drag racing when I was in high school in the mid 1970s. It took me several cracked windshields and a couple of transmission cases before I figured out how to control some of the chassis twist.
Your channel is now one of my top automotive favorites. I enjoyed your methodical and science based approach in this series, very impressive.
The late Bob Lear (of Lear 8-track fame) took a 1971 Chevy Impala 4 door sedan (4316 lbs curb weight),he paid $1400 for, with a 400 CID V-8 "smogger" engine and modified it so four cylinders were actually providing power and the other four were being used as superchargers. He drove it from Californicate to Washington D.C at the height of the "gas crunch" in 1976 at 55 MPH and got 50+ MPG and reported his findings to the Senate Transportation Committee and asked "Why doesn't GM build this?" The lobbyists from GM mumbled around for FOUR and a HALF HOURS without answering. He used four salvaged Mikuni CV motorcycle carbs he paid $110 for (off a KZ-900) instead of the $1152 Rottra-Jet carb standard. WITHOUT a cat-con it passed 2000 proposed EPA emissions standards. Ralph Nader swore under oath it "isn't possible". But the EPA CERTIFIED the results...
You are a bonafide genius. I’m curious to try that same thing. The control box looks great.
Fascinating stuff, never thought of doing mixture management with a closed loop air bleed but now that you've done it it seems so obvious.
Man, watchin this whole thing evolve throughout this series has been pretty kool. I know you said this was intended to be a joke. But it seems to me that there are a ton of practical applications for this tech. and possibly a huge market for it. Great content man.
If he makes it to where everyone can get it, it will literally put old cars back on the road if all done properly!
@@masonthompson4363 ...There have been plenty of fuel injection kits for older cars.
They just had max performance as their design objective.
If they incorporated a small throttle valve with a larger secondary, they could maintain air velocity similar to this, but with reserve power (V8 power)
This carb simply removes the users choice to use the V8's potential.
That sounds a lot like wearing running shoes while wading in three feet of water.
You won't be running.
It would make for a nice addition to my gen-set, a riding mower, snow blower, etc.
Those machines have the politicians eye atm, so I don't expect that gas versions will be available much longer, or cheap fuel for them for that matter.
Maybe it was a good idea twenty years ago.
Excellent project! Very well done. I heard a tale of a ford truck in the early 70's that got around 50 mpg. It got accidentally sold to a guy in GA. They eventually got it back.
Cool story, brah.....
@@countryjoe3551 Bollocks, but cool...
@@countryjoe3551 His whole childhood probably evolved around GTA. Just go with it, brah.
Back in the 1970's a guy told me him and another guy were told to load up some boxes from engineering into a truck. He worked for Oldsmobile and the engineer got a phone call and had to leave. While he was away they looked into one of the boxes that wasn't taped very well. In the box was a carb and it had a tag that read 1966 Toronado 455ci 66 mpg.
so sad, but reality.
Why didn't they break out these magic carburetors when the fuel crisis hit and people started buying japanese cars?
@@bz938because these stories are all bs😂
@@quirinm. exactly!
When you think about it, it makes perfect sense. Back in the late '40s and early '50s, there were plenty of v8s running around in the high 200 cubic inch range which had one barrel carburetors on them. These engines in big land yacht cars and pickup trucks with no overdrive and low gears where getting 20+MPG or somewhere in that neighborhood, with no dynamic tuning.
absolutely!!! my 53 Dodge 241 HEMI V8 touted 25MPG off the showroom floor!
My '69 Catalina with the 400 V8 2BBL, 2.73 rear & 3-speed auto got near 15...with the carb way out of tune! After getting that Rochester 2 Jet back up to spec, it's getting at least 19 now. That's not bad at all considering it's a tad over 4,000 lbs. Pre-Malaise era cars weren't the horrible gas hogs people nowadays make them out to be (when they're tuned right)
Thanks for sharing your creation. Yes, you are correct in your hypothesis why it's getting better mileage. The greater the vacuum, the more the fuel will evaporate or atomize, and the better it will burn, giving the same power with less waste. Well done!
That's like saying a car will get better gas mileage with a dirty air filter -- lots of vacuum then; so why does it get less mileage with a dirty air cleaner?
@@TimK-1971 I wouldn't believe everything I see on CZcams. Especially claims where someone more than doubles the gas mileage of a motor vehicle. Isn't it strange that auto makers never figured it out to use lawn mower carbs on their engines.
Good job on putting this all together. Keep it going!
I just found your channel in March 2024. The V8 is a good candidate as it has sufficient torque along with the steep 2.79 gears to shuffle the car along with the swirl and vaporization you speculate on.
Now, add a second mower carb with a progressive linkage system that won't allow it to open until the first carb is wide open, along with your mixture leaning device adding more air only when needed you may hit the sweet spot of cruising range and the ability to have power for long grades or mountainous driving.
Best regards.
Carburetors engines are most efficient at wide open throttle. The economy gain is largely from eliminating intake runner vacuum caused by the throttle butterfly blocking airflow. In small aircraft we often cruise using wide open throttle and control engine rpm with engine load by adjusting the propeller pitch.
Selecting a carb that is going to operate at near max throttle during normal operation was one half of the success. The carb cheater is the genius second half of the equation. You will see less gains when you use a carb that isn't so close to max flow during normal use.
Wide open throttle on the carb does not mean zero manifold vacuum. The venturi on this carb is so small, that even WOT will be in a vacuum at anything above idle.
@AmericanLocomotive1 I guess you didn't brain the part where he's talking about sizing the carb for application not saying it applies to any sized carb on any sized motor.
@@chubleza large carb at half open is the same restriction as a half sized carb at wide open. Its simple math.
41 mog while rounding up and spilling out a little bit. Honestly I wouldn't be surprised if you truly got 50+mpg. I would love if you could find some time to have it dyno tested. Also, you should start printing out hundreds if not thousands of those carb adapters. I want one.
Agreed Id even donate to cover the dyno bill
Yes! My dad and I have said for years that the oil companies have had their hand in the pot when it comes to engineering and people don't want to believe it. Here's a really easy simple proven example. A V8 that gets 41 mpg...🤔🤯
Me too, id love to see these on v8's everywhere.
Yes u could mass produce these. Do the adapter with the carb pre set up n it could make you some big money. I would do it. N I know many others who would too. Especially w the current gas prices
@@mrfordman9999 a super old v8 at that
I was born in 67. My first car was a two door 72 Maverick. I miss that car more than any other vehicle I have ever owned.
Thats amazing. Ive heard people talk about similar things but never seen it. I think its awesome
It's stuff like this is why I am a fan of yours, Sir! Had a quirky idea and ran with it... Wow! Look at those results👍
You may have made history here my friend, massive hats off and props to you on this!! Keep going with this!
This is some old-school stuff he's doing. People started playing with this same principle back in the 70's and 80's, using motorcycle and small industrial engine carbs that could be easily tuned with simple screw adjustments and jet swaps, when emission compliance came out and vehicle fuel milage and power tanked for it.
About a hundred years ago someone made a run at getting extreme mileage out of a production Chev car. Tire presure was set at very levels to reduce rolling resistance. Tranny, and rear end wear drained and #10 motor oil installed. Wheel bearing grease was replaced with # 10 motor oil. And as you did the stock carb was replaced with a small engine carb. Anything that weighed was taken off. The mileage run was on a hard surface track. They would slowly drive up to 100 mph, shut the engine down and coast to a very low speed, restart and slowly increase the land speed back up. Not the kind of highway driveing we could do, but they could honestly say the Chev was able to get 100 miles per gallon.
I'd like to hear back about a running average on this and see if these numbers held out and also about how long the carb lasted. You may have it in another video, I'll be looking for that! Congrats on a cool project.
This, this is mind blowing. I'm wondering how well it would do in city driving. Considering how efficiently your setup works I'd think that number would be equally mind blowing. Talk to a patent attorney, today. Seriously. You are in the realm of GDI destroying tech for MPG.
Yah patent it and no one will get it after Mr. Elite buys you out after threating your life. Give it away and finally everyone will be free. Open source it the way to go. Vaporization has been around and their patented, and no one has one. Why?
Fast. Like yesterday before china copies it. Even though theyll still steal it even if he has a patent on it hahah
Please destroy GDI! As a tech and a customer I hate them, I try to buy 80-00's for the mix of simple and safe. The potential is inspiring!
Exactly a commuter V8 maverick making 22 MPG "city driving" would be impressive.🤔😳
@@kamiraanddie12394 Ten percent for The Big Guy
I’d love to see this on a slant 6! With gas prices what they are, you should market this!
bad idea, guys that have promoted their amazing fuel saves tend to disappear or die randomly
That or most of the fuel saver gizmos are snake oil
@@grahambain3762 true that happened awhile ago someone built an engine to run off water. Next thing you know he died out of no where.
Everyone that has tried to sell things like this get killed off
@@BigTony_Garage engines that run on water...
Steam engines come to mind. Very efficient. Check some out on Jay Leno's garage on CZcams. He drives them through town and on the freeway.
I know that's not what you were talking about. You were thinking of a hydrogen powered engine.
Brings to mind the vehicle that Buckminster Fuller made using a flathead V8 and one single wheel in the rear.
It was essentially the shape of a van and carried 11 passengers. It had a top speed of 90 mph and achieved an mpg of 30 mi per gallon.
By some "incredible coincidence", the car had a pretty catastrophic accident when it was demonstrated at the world fair.
the list of people like " Buckminster Fuller " goes on forever. he was a great one.
Back in the late 70's, early 80's, there was the book that's titled something like the "200 MPG" whatever. The concept is except for cold starts, your economy is better just running off vapor rather than liquid. A lot of the designs were just carbs that had the coolant routed through them to create vapor once the engine warmed. Really cool concept.
200MPG... LOL. There is only so much energy in a gallon of gas and it requires a certain amount of energy to move a given mass in a time period. an ICE is absolutely horrible as far as efficiency goes, but yes vapor helps carbs due to poor atomization. Port fuel injection with clean injectors and healthy pressure solves this issue.
Also, from Thermodynamics, it would be better to keep the heat all in the combustion chamber because heat is energy. Those pesky physics comes along to remind you metal melts and fuel can spontaneously explode (pre-detonation) with enough heat and pressure. So, we ride a fine line between heat, timing, and combustion temps to acieve the best output.
Also, FI has lean cruise mode.
@@kylefelts691 it's on Amazon. It's 200 MPG carburetor. I didn't say it's true, I didn't say I'm the author. I do remember a claim from reading it ONCE 40 YEARS AGO that someone had a Cadillac getting 55 mpg on the highway. The book is mostly pics of patents of carburetors and claims. 120 million joules seems more powerful than your solar panel.
Yea, those miracle carbs were all over the backpage ads in car magazines in the 70’s.
Go watch UTGs videos on them, they are just a scam
@@blackhawk7r221 Almost like there was an oil crisis going on or something.
Jokes aside, wish they would have put a little more development into alternative propulsion methods back then. Would have maybe shaved a few degrees of this global warming shit we're dealing with now.
I live in the Netherlands. It's a direct threat to our way of life.
I literally cant stop sharing this to my friends. Seriously want to do this so inspired, could open so many doors for daily driving a vi old school, my dream. Dude you're a badass keep going
Excellent work, my good man!
Some of my favorite youtube content of all time.
Well done Luke, that was very interesting. I always enjoy your content and the practical way that you approach each task - even if it started off as a bit of a joke. Looking forward to more of the 4 barrel tuning content. Cheers from Australia.
Truly amazing, Luke. Thank you for sharing.
Now, get those carb adaptors and the electronics into production!
LOL I love the motor mount, I've had to do that before too! So I assume that shot @2:00 of you gettin it wasn't with the lawnmower carb... I wonder if it can pull a steep west coast hill with that Briggs carb on there. I like your wannabe Grabber. I miss those cars. Wow man, just wow! hella nice!
More of this please! I’d love making a V8 land yacht from the 70’s/80’s have ridiculous fuel economy like this. Dad was a mechanic, I know very little of that stuff. He drank way too much
Makes me wonder, how would it work on a real yacht or I/O cabin cruiser ?
He probably drank because of his life he had.
Yeah, being a mechanic can be frustrating and drive one to drinking. 😵💫😜
My dad was a mechanic that also drank a lot .having 5 kids and a tuff upbringing didn’t help matters.I have a 1963 buick electra sports coupe and a 99 suburban I could use this set up on both of them
@@hidel308 Yes especially with a bunch of brats at home.
I think you questioned how this would do with the 390 Carb. That's exactly what I wondered. Seems like you would need to limit the amount of air allowed through the IAC Valve so the secondaries would still work, assuming it's a 4160, or integrate a throttle position sensor. I would imagine you could get some great results while the car is running on the primaries. Creates some interesting problems to solve. You have me very intrigued by this whole experiment.
Guess we're getting close to the feedback carburetors of the 80's when taking it to this next step. It's been fun to follow these videos.
Holy crap dude! that is amazing as heck!
Those string alignments are sometimes far more accurate than the laser alignments from shops. I have had a shop give me my car back with one rear wheel being at +1* Camber and the other at -1.4* lmao.
Safe to say I never went back to that shop, and shortly thereafter, they went out of business!
You want something done right, sometimes you gotta do it yourself!
This is amazing Luke. I bet you could patent your intake plenum and there would be a substantial market demand to put this in production. This is the first time I've seen a legitimate system for getting significantly better mileage as well as drivability. Well done, it's good to see someone who can work with their hands and use their brain. 👌
According to Joerge Sprave from the Slingshot Channel, it's considered "prior art" legally once you post it up online like here on CZcams or other social media, so not likely he can patent it at this point. Also according to Joerge, who happens to be a retired patent attorney, this is often better for a small time manufacturer, because having the design in the public domain protects you from having to litigate patent issues in the future. It does open you up to have your design stolen, but it basically protects a patent troll from swooping in and suing you for a design that they later patent. This came up in regards to videos on Joerge's repeating bow design, which I would highly recommend checking that video series out. Really cool tech he came up with and I learned a lot about IP law in the process.
I am not a lawyer, but the info from Mr. Sprave that you quote really needs to be verified. I would strongly recommend that Luke look into patenting this, if only to prevent trouble later from patent trolls as you mention. Also, this would make a great article in a DIY magazine such as Popular Mechanics. I hope they consider it.
@@greatwatermeloninthesky7642 I agree, Luke needs to patent this yesterday. This WILL get stolen and someone WILL profit from his marvelous ideas and engineering.
@@greatwatermeloninthesky7642 Joerge is a lawyer. I don't need to verify it. He's the expert.
Great idea and follow thru! I've always like the air leak tuning idea, just never tried it. Use it on a 4 barrel next, just to get stoic. 3d print a 4 barrel intake with a side lawn mower carb for the highway.
I used a Gm Carb on a Dodge 360 avg 26 Mpg. Getting 6 to 7 Mpg better then factory back in 1990.My theory was less CFM,s and smoother idle and better vacuum .Didn,t have as much power and didn,t care.Great Job never thought i,d see the day when a Ford 302 would sound so good.Thanks for sharing.
In the lab we use a calorimeter to measure energy in a burning sample
We put a paint or solvent in a pill shell about the size of a Tylenol PM into a cradle Suspended in a solid steel canister and flood the unit with pure oxygen.
We trigger an ignition and measure heat gain.
It is not uncommon to blow a hole through the very thick steel.
If you can find away to add oxygen to your carb without creating a blow torch you could generate. 100 x power
Air us only comprised of 16 percent oxygen and the rest inert nitrogen.
If you could add an oxygenator you might get 100 - 200 mpg.
I like the way you have a grasp on fuel ratio.
You can buy an oxygenator for a 100 bucks but if you use a bottle from air gas you might be able to find bracket and components used in nitrous kits
Of course this would be a dangerous quest as the power of pure oxygen is incredible
But this would be the key to obtaining a ludicrous mileage
Great job Luke, very simple yet clever. That mpg from a V8. Wow
I once had a 1981 Plymouth Turismo that got about 100 mpg. The guy I bought it from in 1995, told me he "did something" to the engine and I'd love the mpg. He wasn't kidding. That first week, I drove over 400 miles on 4 gallons of gas. I know nothing about engines, but have wondered for 27 years now what he did. This video might have finally answered that question. He was also a lawn mower repairman!
What happened to the Turismo? Did you sell it??
Yea what happened to that car
I think he slipped you rohypnol
100mpg 😂😂😂😂😂 bollox
100 MPG??
Amazing work and discovery❤
Wow what a cool video man! Off the showroom floor back in 74 that thing probably got 8 to 10 MPG lol.
Misconception that old cars get bad mpg - 40 isn't super wild considering I get 26mpg normally and have full power when I want it
@@ThunderHead289 That just blows my mind man. Your videos are fun to watch!
Do it!!!! Do it real nice and deep like. 😉 Also dude your onto something potentially huge. I really hope you do more with both the lawn mower carb and the carb tuning plate. I really hope you get to a point of where its perfected patented and your mass producing and sell kits and packages for both. Im very proud of you and wish you the best of luck on this endeavor. Keep going bud. You won't regret it. 🙂
I recently bought a 1976 F350 with a 302 Cleveland. Now, I knew what I was getting myself into, but I always had the overarching feeling of "yeah, this ain't ever gonna be a daily driver, more like once in a fortnight. The fuel price is gonna be crazy".
Now, after watching this series and actually seeing that options are available, adjustments that are not excessive can actually be made, and making it a somewhat reasonable vehicle to drive isn't nearly as impossible as it once seemed; its just about working using logic and information that is readily, and adjusting to what the conditions allow. This video was an eye-opener for me, so thanks a bunch, and I can't wait for the continuation of the series!
It's really good stuff. I've been into vapor carbs for years now. I'm finally trying to make some.
No you didnt
No such thing as a 302 Cleveland. Unless you live in Australia.
302 was a Windsor and the closest to a 302 Cleveland they made in the USA was the Boss 302 which was a 302 Windsor with Cleveland heads on it but they are rare.
@@todddenio3200 The 302 was made in Windsor, but technically only the 351 W was called a Windsor. The 302 and 289 were just small blocks.