Building & Testing an Engine With LONGEST Stroke & SMALLEST Bore (Automation | BeamNG)
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- čas přidán 23. 09. 2023
- Today I will be attempting to build a 3 cylinder engine that has the longest stroke and smallest bore combination possible in Automation to see what kind of engine we end up with! I put a big ol' turbo on it to spice things up and the results were quite surprising...what started off as a very janky engine might actually be half decent xD I finally ended up putting the engine into a mini truck and taking it for a test in BeamNG! Check out the video, let me know in the comments below what you thought, and I hope you enjoyed watching this as much as I enjoyed building the engine!
Thanks for watching the video! If you enjoyed it, make sure to like it, share it with your friends and give me your feedback in the comments below!
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About Automation and BeamNG.Drive: store.steampowered.com/app/29...
store.steampowered.com/app/28... - Hry
![2010 BMW 550i GT - City Car Driving [Steering Wheel Gameplay]](/img/n.gif)
GIANT Bore & TINY Stroke V10: czcams.com/video/xYmS90ipJPI/video.htmlsi=DX1HAzIkHuI9TSms
Rod length and bore size have limits because of the rod angle during the stroke. Too long rods/stroke and the rod hits the sides of the bore.
Very long strong engine have a separate cylinder rod and connecting rod for that reason.
@zachary3777 also for scavenging or double acting but that'd allow you to definitely push the limits further if the game had it.
@@gavmansworkshop5624 yep, also true for example on a double acting steam engine.
You can use a cross head bearing like the Wärtsilä RT-flex96C and have a 3 foot bore with 9 foot stroke.
You can have very long rod so that the crank will be further from bottom of cylinder, with that conrod will move less sideways at the height where it would contact bottom of cyclinder bore. the problem with that long conrods would be weight and they would bend very easily.
Yeah, turn the compressor trim down to 30-60, crank the boost pressure up a little bit, add 5th gear, put the static compression around 8:1, increase the valve spring pressure/stiffness a little bit; that should make this engine better. Good fun, though.
Let my tell you 50%of you advise is trash
At first the compressor size should be around 60mm for that displacement and rpm the turbine needs too be way smaller lmao ~50mm maby even 45 mm
The trim yeah around 30ish but trim higher trim and alower size is also possible but isn't as effective
So fare we are almost on the same page but boy springs and lifters over 50 isnt the way! only high boosted engines and the once at +10k rpm need more than 30 in springs/lifters the static compression at around 9.0 is low enough trust me the valves don't flow enough air so that high boost will not comply reach the cylinders 😅 (had one mad stroker engine family but oh boy it was a struggle too tunned the turbo for thes engines)
And well the 5th gear is a good idea
thank you engine wizards
@@darealkosmo Kosmo can you read one of my comments i think someone with your name is trying to scam me
This guy can tune cars over email.
@@matthewblunderbuss4545 well +300h in automation alone and high understanding of the basic principles at work will do the trick XD ok same spreadsheets do also help
Automation is a series i wish to see continued in the future
Are you a fellow member of the Lathrixian Legion?
Same
@@SillyHammer i was hoping someone would catch that lol, and yes, yes I am
Oh absolutely
@@SillyHammer Kosmo and Lathrix, janking their way to complete and utter victory.
6:54 Yes, you can put a carb onto a turbocharged engine. It doesnt really care about the general pressure in the intake manifold, it only cares about the air flow and the pressure difference around the venturi nozzle.
I mean, boost referenced carbs dont. But if you dont have a boost referenced carburetor, the fuel pressure is only like 7psi. So it'll lean out then youll blow boost through the fuel system lol.
@@SoI_Badguy Maybe, but if you use that kind of carbs, you are more likely to just push the float up and close the fuel intake.
They make blow-through carbs for boosted applications.
Here's some tips:
1) If you only want to use one muffler, always choose the second muffler and not the first, you'll lose less power and your engine will be quieter.
2) If you want to use VVL, set the cam profile and VVL profile far apart. The entire point of VVL is to give you extra power at high revs while maintaining torque at low revs, setting the profiles too close to eachother beats the purpose of VVL completely. You can even reduce turbo lag considerably if you set them right.
3) If you make a rear or mid-engined car, try to tune out terminal oversteer. You can tell a car terminally oversteers if the steering graph shoots up instead of down.
You can tune it out by: increasing rear tire width, increasing negative rear camber, increasing rear downforce, reducing negative front camber, moving the weight balance towards the front.
(terminal oversteer means that over a certain speed you will easily lose control and never regain it)
thank you!
That turbo, was literally just sitting there, waiting for anything to happen, completely stagnant HAHAHAHAHA
It would be cool to see a high bore, short stroke, SUPER high revving engine in automation like the v10s used in F1 in the 2000s
Unfortunately that is way overdone as you mentioned they do that for racing. This idea though is unique for a car.
@@BaronBoarUnfortunately Kosmo did that.
As sameone with over 500h in automation and as absolute engine nerd it just hurts too see cosmo play right now especially the camshaft and turbo stuff (im sure he will get better but ufffff)
🙈
Maybe you could do a video with the same idea: small engine with smallest possible bore and as long stroke as the game supports?
I really like this game, especially that you can drive your own engine in beamng. I would love to see you build and drive more engines, maybe going for the best sound or crazy boost?
now you gotta make a V8 with the longest bore and smallest stroke, but it's gotta be as powerful as you can get it
As an automation engine main, I felt physical pain during the turbo segment but it's still fun to watch. The fun about automation is that you do whatever you want, just have fun the way you want. Don't listen to people like me who try to make busses go at 500km/h (I haven't done that yet, only done 400+km/h)too much
This was pretty interesting, I'd love to see you play more automation/beamng.
Here is an idea. Build 2 engines. One weak, and another one is EXACTLY the same, but with turbo. And try to make it so turbo is powerful, and works as soon as possible, with the lowest RPM.
I wouldn't normally watch this stuff like building engines but this is actually interesting thanks kosmo
I love the way that truck looks. Like a classic 50’s or 60’s truck but in mini form.
I was agonizing waiting to see when you would reduce the size of the other turbo stage so it would maybe spool sooner, and you didn't, so there's something that may improve this engine by quite a bit. Love the idea and the video.
You'll have to go some to BEAT the Fiat 7 liter 1903 GP winner. It was a SINGLE cylinder four stroke with a 5+ FOOT stroke and about a 97mm bore. The driver(s) and mechanic(s) covered over 800 miles in 24 hours or an average speed of 33.3 MPH or about 53 KPH AND it didn't break-down, something no other brand in the race could claim. Compression ratio was a "revolutionary" 4:1 and it produced about 18 Brake Mean Effective Horse-power. In 1904 it was the FIRST automobile to travel 1000 miles (Millea) in 24 hours. The first American auto to travel 1000 miles in 24 hours was the 1904 Duryea Bros 6+ liter V-8 on a closed course in New Jersey. Different sources claim the engine was 380 to 420 cubic inches, it's agreed the engine produced an AMAZING 25 BMEHP. The 1904 Stanley Steamer made 32 HP but it's need for water every 25-30 miles doomed it. The 1905 Stanley Steamer set a World Land Speed record on the beach very near what is NOW Daytona Beach, FL of 60+ MPH, variously reported as 61-63 MPH on INFLATABLE Firestone tyres,, another first for LSR.
One thing ive always found best when building engines or the whole car in general in automation is when you're tuning but can't get knock to go away or you finally got it to go away but now its very touchy to little changes. Skip whatever youve been trying, go back and lower compression and cam ratio, check everything to make sure you didn't accidentally bump something all the way up or down. If nothing is working though, sometimes you just have to increase quality and go with better materials. Honestly though ive been having fun just keeping my limiter under 6k and making torque monsters that pull like a dragster yet sound like a semi.
Oh and exhaust back pressure can cause knock and sometimes keep you from getting rid of knock. Funny to see it cause that in the game yet people still say to this day that you need back pressure. No you need the right size exhaust factory exhausts are usually right at that limit to keep them from knocking but they want to keep some exhaust gasses in the chamber to keep engines from releasing too much unburnt fuel into the exhaust and throwing cat codes
Congratulations! You made a inline-3 beetle engine
woohoo!
I'd really like to see you make a MK2 of that engine with proper materials so you can max out everything without it breaking. I want that tiny 3 cylinder baby engine with infinite HP 😂
"I experience high levels of stress every living second of my life, and I'm still fine"
Literally almost every man in existence
For the cam profile, (and I'm no expert so I could be wrong) my understanding it that its talking about the lobes on each cam that operate the valves. A more aggresive cam profile would have very pronounced lobes opening the valves up much more, and a low cam profile would have a very slight shape to the cam lobes, opening the valves just a little. This would make sense considering high cam profile is preferred for high-performance (where more fuel and air are needed) and low cam profile is preferred for economy cars (where fuel consumption needs to be kept to a minimum.)
You basically made a kubota inline 3 diesel with a slightly higher redline 🙌🏼
Now if people say youre bad at producing engines and cars this is the proof gor you succeeded 💪🏻
More of this please this is awesome
I have absolutely no idea what's happening here, and I kind of love it
The reason you can't get the bore to stroke ratio you're looking for, is because of rod swing at mid-stroke. If the bore is too small for the stroke, the connecting rod will strike the bottom of the cylinder bore. To get your "bicycle pump" stroke to bore ratio, you would need to use a crosshead, similar to a steam engine.
Stroke is limited to the rotation diameter of the crankshaft and bore size unless you have extra separate rod connected to the piston and conrod. So an extra rod between the piston and the conrod pinion aka small end.
yup. like ship using boiler engine.
I would recommend the variable geometry turbo(vgt) for something this small because it will allow it to build boost at way lower rpms so it will allow that tiny engine to actually spool that massive 120mm turbo
Kosmo and Automation, my world is perfect for 29 min xD
Throttle open, fuel go in. Fuel, oxygen, bang, exhale. Crankshaft go spin spin. Piston go up down. Engine go brrr. Crankshaft spin driveshaft. Transmission less HP more speed. Car go neeerow. I hope you liked my demonstration.
I really like your vids. You are a great guy
Best part of this game is doing challenges, where you try to find loop holes in the engine area, or really optmizing it.
Or build a 100 MPG, 500 HP sports/super car... twice.
Direct injection definitely throws the "old farm engine" idea straight in the trash and puts it in "extremely modern engine" territory
Crappy little engines in automation are sometimes surprising in BeamNg, I had built a small 1.5l 4 cyl. based on the FVA, absolutely did not tune in automation, just stopped it from self destruction, exported to Beam in a small coupe and that thing was amazing!
decrease throttle body to around 50, and bring exhaust diameter down about 20 to 30 percent, you'll get improved vacuum and higher exhaust velocity leading to a better running engine
No way cosmos on automation let's goo
If you go long stroke, you should optimize the whole engine for low RPM torque. Optimize turbo for low RPM!
The turbo sound when changing gears reminds me of need for speed underground 2
Variable geometry turbo will help. My ram 2500 diesel truck has a vgt in it. It just has fins on the compressor that are mostly closed at lower rpm and open up at higher rpm. This allows a larger turbo to spool quicker.
5.4 Triton👍
317ci with 4.17 Stroke and variable valve timing. Excellent Torque.
you literally built a new style car engine. Like a 3 cyl. Ford Ecoboost engine xD
18 minutes in it sounded like my 4.3 Chevy s10 when I had an exhaust leak lol
The reason (I'm about midway) the turbo isn't making boost is that it can't really spool up since the engine operates at a very low RPM, and it is pretty small.
So what do you think tractor turbos do nothing
Next time, try and max out the compression ratio for maximum stroke performance
Out of curiosity you should have definitely went forged or billet just to see how much power you could really squeeze out of it
i say run a smaller turbo and adjust accordingly to get it to spool sooner. get it linear af
AR turbo adjustment, more is not better, it just means boost will come later in the rpm range. Lower/ smaller turbine will spool up faster, which is what you want on a long stroke torque engine
I saw you in filmans stream, was really hoping you were going to make an automation video.
I had finished my recording and hopped in to watch how the pros do it haha
I made an engine in automation the was a quad turbo 21L v16 that made 6422hp and over 8000ft-lbs but the only and I mean only because there is only one body you could put the engine in was an estate car or wagon but yeah it wheel spins in every gear and I have never got to top speed because it doesn’t have enough traction so yeah
insane!
BMW makes a 3cylinder engine for the MINI Cooper. 128hp 140lbs of torque. Obviously tuned way down for reliability.
IRL if you make the bore too small (or long stroke) the rod will need to be crazy long not to hit the cylinder wall.
- Still, a long stroke is better "if you can hit the same set crank RPM"!!!
- The reason's
- it's easier for the piston to move the crank (it has more leverage aka more torque).
- since there is less surface area there is less friction on the piston (assuming the rod is long enough not to put the piston at a bad angle)
- the initial volume is smaller so combustion puts more pressure on the piston faster (the cylinder wall is closer to the center point of the piston) a bigger bore piston must fill up more area before it can push down.
- since the piston is moving farther, it's more likely to burn all the fuel (aka less wasted fuel)
- a long stroke piston must move faster at equal crank RPM which creates more turbulence in the cylinder wall for better fuel to are mixture (especially at low RPM)
- all of the above usually make it more efficient
I first found this out racing RC cars if both engines are hitting 40k RPM the long stroke normally wins in every category. cheaper RC engines are usually square (equal bore and stroke) for they can't hit good RPM (HP) with a longer stroke.
@gatorage850 Long rods, like a ship engine, use a "cross head" to have the rod bend on the stroke. Fun stuff to play with for sure.
Well yeah but there are 2 thinks why we don't use many longstock engines
1. The piston speed at ~ 20m/s is the end for very light pistons otherwise they would shred them self just by the acceleration and deceleration oh and the oil Film in the cylinder dosnt like such high speeds (and on small scale these epped arnt reached even with +40k rpm)
2. The valves in the head can't flow if they are too small or doo you want optimal cylinder charge at idel? And lose power at the in the areas you need to accelerate the vehicle (on a 2stroke that isn't as much of a problem
That is the reason almost every car has a nearly square engine
on slow running diesel engines a slightly higher stroke is preferable because diesel oil burns pretty slow and the higher mass of the internals that need to absorb the shock from compression ignition is killer at high rpm
@@TheLtVoss Piston dwell is a thing, and NASCAR engines use a long stroke just for that reason.
@@TheLtVoss 1. ? and 2. ?
"That is the reason almost every car has a nearly square engine" someone did not tell Honda and Toyota that...
@@gatorage850 honda is always in the 10% of square form more modern engines and the tendencies go too more square
Toyota well has quite the mix but there is a easy explanation too that streamlining of production it is cheaper too build a engine family allover the same bore and use different crankshafts for different displacements so all 1.3l to 1.6l engines have a 72,5 bore so that one piston fit them all but if you go too the 2.0 well look closely at the might of square engines
I'm not saying that a long stroke is bad perse but als always in engeniring there is a trade-off and limits if the engine rpm is designed low and fuel consumption is one mane thought I would also chose a under square engine but going after these goals will leave a work horse with suppar responsiveness and low rpm in a unexciting engine that will soll bad in certan demographics (and the most consumer how look after good fuel economy arnt that weathy so they buy cars les often)
Now that you built your Jankey engine. Un-jank that engine.
this little ripper
Oh wow the cam and lighting makes you look real bad Kosmo D:
still working on the cam setup 🤷♂️
"Tour guide:" and over here we have the mating ritual of the compact mini truck as you can see it makes loud squeals and twerks it's rear like no tomorrow in attempt to attract a mate
😂
automation!! i love making stuff for my fake car company.
it would be really cool if you made a 90s sports car, and then turned it into a group A race car!
I swear, the torque though...
Kosmo plays automation?!?!
See you went small extreme I went big extreme 🤣 16L quad turbo v12 putting out 3500hp and 3300 ft/lbs torque 🤣 as fun as it was I tend to stick more with your standard sports car set ups, off road truck setups and eco compact sedan setups. Ended up recreating a 69' mustang fast back Mach 1 with 4 barrel dcoe carb 5L v8 NA putting out around 350hp and 325 ft/lbs torque
Watching him with his HUGE turbo the entire videos made me rage 😂 he have a small compressor but MASSIVE turbine side!
That was the problem of your engine buddy!
😂😂 I see big turbo I get excited okay? Appreciate comment yo 🙂
@@darealkosmoi do to! i own a huge turbo car!
But your turbine size was pushing your boost to come up at 4000rpm. With one a little smaller you could have boost from 3000rpm and get a better powercurve.
a tig ol burbo
Now make it a in line 6 cylinder
oh nice you have a facecam now
Thanks for removing the scammers comment kosmo (:
Pretty sure if you click the lock on the bottom left it allows you to do whatever.
Ar. On a turbo is basically how wide the inlet is it stands for area over radius think of it like a bigger ar is a bigger straw more air passes through but at lower velocity smaller ar usually spools faster and is better for smaller motors but at the expense choking at the top end big turbo do not = more boost directly to achieve highest hp numbers and not have no response you have to pair the correct turbo with your setup im not an expert but thats what I've gathered when preparing to build my car
Longest stroke engine I’ve ever worked on was 2.46 METERS. GIT GÜD
you can have the longest stroke you want without any bigger bore ... but it would just be a waste of cast iron and weight on the car.... real american patriot designing car right there
Shoulda did a 6 cylinder!!!
i love this game but im terrible at resisting the urge to turn everything into a V12 twin turbo monster
haha I know the feeling xD to make it super jank I should have done it NA but I couldn't help throw a turbo on there 😂
@tinytruck2108 A V-12 with only 2 turbos? Go big and go broke all at the same time. A V-12 with 8 compound turbos.
@@darealkosmo Are compound turbos a thing in this game? And like always, thanks for the shows Kosmo.
Should have made it a naturally aspirated 6 cylinder, putting a turbo on it has not shown us how it would actually be
Is this the game where all of those crazy BeamNG mods come from?
some!
@@darealkosmo Seems like a good match for the Kosmo brand as a whole. I hope it does well man!
@@PasiFourmyle thank you!
3rd gear was close to 1:1 so its got direct power from the motor! I always wanted to download this game, but you know I am lame and play league. When did you start do videos with you in them?!
just experimenting :D
some german guy built a hillclimb monster using a hdi block hayabusa heads and running on gasoline.
capped at 11500 rpm. if its stupid but it works then its not stupid.
nothing better than having a crazy idea become a reality and it works as intended.
that's wild!
Now use that Ship Turbo Mod on this Truck!
that sounds fantastic. where get?
@@darealkosmo did my reply get deleted cause of links???
i'm having a stroke watching this
do I need to call ambulance?
I do have this game I can get a petrol engine to sound like diesel. you will have to put the compression right up at 14.0.1 or more and lower your cam to atleast 10 or less for your idle. And your going to have to use fuel unleaded 95 and the values have to be extremely stiff plus you will have to use direct injection for it to workand lower your rpm to 3000 or less. Diesel do have a long stroke and a small bore. Then do all your fine tuning and what not. There you have it a petrol that sounds like diesel
I did not expect you to look that way and the facecam kinda broke that illusion for me. Not that there is a problem, but I got to have a different image in my mind and with the facecam that's not possible anymore.
would definatley love to see a different engine challenge, you kept talking tractor engine, and i was expecting the end product with like, max RPM to maybe be 1000-1500 at most lol. would love to see the big slow engine next
They have deactivated thew challenge mode for the new big update coming, but there was one challenge you had to build a generator, with max weight of 200 pound, very efficient, low noise.
want a challenge, try to make a 6r4, specifically the international spec, trust me, its hard, the information is thinly spread and a lot of information is vague as to whether or not its for clubman spec or international spec
I liked my I4 84mm bore 88mm stroke Honda F20B DOHC V-TEC. Power the whole way, v-tec@4500rpm to 11k.
Model T was 4.5/1 so apparently we cant make that engine on this platform.
Lower A/R will help spool faster
can u try and do a moped 1 cyl 2 stroke engine and test maybe?
tig ol burbo
This would be a high torque low rpm setup
The game is good, but as this type of car is supposed to be the most basic model, the worst engine is technically the best engine in this car
Like, the car model is supposed to be very light, it doesn't have much resistance to movement, the engine's power reaches the minimum level of scraping the limit to break a part, but it's still very light
So you ended up with a weird combination of a low rpm, high torque tractor/cruiser engine and a high-rpm, high HP screamer. There's a reason why you can't have both IRL ;-)
It sounds like a side by side
Can you build 2 stroke engines on this platform?
When are you bringing back the co-op scrap mechanic
Beam still doesn't understand the difference between boost loading and the engines power curve when creating the engine. How could such smart people not understand that if you're driving and you've increased load and now hit full boost 1000 rpm 2000 rpm earlier than on the engine dyno, the torque peak is going to change
Is this all going to be in anime ?
For some reason i find the lack of knowledge about engines and fuel systems hilarious.
Meby If the bore' too slim & stroke too long! Thats Engine Name: Doppel Kolben system Not too' much nice 2.
11:30 it sound like a skoda fabia I 1.2 HTP
It sounds like a colt rodeo v6 3000i
So when are you going to BUILD it?
:0 kosmo in beam