Honda K20 / K24 - What makes it GREAT? ICONIC ENGINES #11
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- čas přidán 11. 04. 2020
- Welcome to the dark side. We have airflow, an amazing intake port design, an incredible aftermarket. Coming soon, to a swap near you - the Honda K20 and K24
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So first, a bit of history. The K20 first appeared in 2001, very soon after Honda's F20C engine that heralded many of the amazing technologies we would see in the K20. The first cars to get the K20 engine in 2001 were the JDM EP3 Civic Type R and the Integra Type R. Europe got the K20 in the same year in their version of the Civic Type R. Australia and New Zealand got their K20 in 2002 in their Honda Integra Type R. USA got it's first K20 engines in 2002 as well, in the Acura RSX and the Civic Si. The first K24 engines also appeared in 2002 in the Honda CR-V and the JDM Accord Type S. Very soon after this the K20 and K24 engines spread like wildfire throughout the Honda model range, powering much of it's vehicles (anything from the Honda Odyssey to the Honda FR-V and many cars in between)
Today, 19 years after it's introduction the Honda K20 and K24 engines are still as popular as ever, surrounded by an incredible aftermarket, enthusiasts, tuners and racers all around the world seem to be creating ever more impressive builds. This is likely the greatest testament to the brilliance of this engine's design.
But not all K20 and K24 engines are the same. They differ between each other substantially and can be divided into performance and economy versions on the K20 and K24. The performance and economy versions are different from the very core. Inside a k20a3 engine for example you will find a forged steel crankshaft, while inside a k20a2 or a k20z1 or k20z3 engine you will find a forged steel crankshaft that is also fully counterweighted, something that's important if you want so spend a lot of time in high rev range. The connecting rods and pistons are different too. Performance k20 and k24 conrods are beefier with a higher tensile strength. Pistons are cast and have molybdenum coated skirts in all k engines, but they feature noticeably larger domes for higher compression in performance k20 and k24 Honda engines.
But perhaps the biggest different is in the v-tec system of these engines. Both performance and economy honda k20 and k24 engines feature i-vtec, which adds intelligence to v-tec. In reality it adds camshaft phasing, the ability to advance or retard camshaft timing based on various inputs given to the engine's ECU. Now performance i-vtec features has three two different camshaft profiles, a mild one for low rpms and an aggressive one with higher camshaft duration and lift for higher rpms. In addition to this it has VTC, which is the variable camshaft timing we already explained and described. In contrast to this economy ivtec functions in a different way. At low rpms in opens just one intake valve fully and the other only slightly to prevent fuel from pooling behind the valve, this saves fuel and improves emissions. At higher rpms both valves are opened, but lift and duration remains unchanged. Also, economy i-vtec doesn't have VTC and has nothing variable on the exhaust valves.
Another important feature of the Honda k20 and k24 is a narrower valve included angle, compared to older Honda performance engines such as the B16 or B18. This enabled engineers to design an optimal intake port shape and maximize airflow. Stock K20 heads are capable of flowing 290-300 cfm, which is more than impressive. The other reason why k20 and k24 heads flow so well is the size of their intake and exhaust valves. k20 engines come with 35 mm intake and 30 mm exhaust valves, while in some k24 you will find 35 mm diameter intake and 31 mm diameter exhaust valves on some k24 engines.
The potential of the k20 and k24 means that k-swaps are everywhere now, and people have ventured well beyond the usual k20 / k24 into ek, ef, eg, civic or da integra. Nowadays k20 are often making into rwd chassis cars too.
When it comes to naturally aspirated tuning, the k20 and k24 engines are one of the few engines capable of reaching 300hp with relative ease (it's not easy) and can generate as much as 500 NA hp if you're crazy enough. But of course everyone's into forced induction nowadays and turbo k20 and k24 as well as supercharged ones abound. Bolt on kits are everywhere and you can build pretty much anything, the only limits are the thickness of your wallet and the sky. "Safe" turbo power for a stock k20 or k24 block is around 300 hp, but many people have gone beyond that, whether it's on borrowed time or not, really depends mostly on your tuning. If you're willing to spend on forged pistons and maybe even reinforce the block with some block guards, upgraded fasteners and ductile sleeves the k20 / k24 is ready to take you beyond 1000 hp.
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turned off pornhub for this
Putting a k 24 erforma ce engi e in a starlet
bro, thanks for all the data. i was honestly considering subbing, but the rap earned the bell lmao! italian supremacy, still honors the japanese, no shame.
You will not gain as much as 30 hp from intake and exhaust change. To gain that n/a hp. You have to change cams.
Will like to know about the k series intake manifolds which one is the better one for application turbochargers
After watching this vid. Ive decided to swap out the Arc reactor out of my Mark IV for a K20
Ok tony
😂😂😂😂😂
Ok, Tony Stank
Wise
Choice.
Acura master class
Tony made a k20 in a cave! With a box of scraps overnight from Japan!
theres an article interviewing Francesco Morettini, ferrari's chief engineer. when asked which engine he liked from another manufacturer, he said the s2000's power plant, and that it was "truly remarkable".
Didn't know that, appreciate the info as I can use it in my future videos. Thank you
After all the s2000 f20c engine had the highest hp\l until Ferrari 458 came on the market
Well obviously as at the point of that interview, it was the highest HP NA 4-cylinder ever made.. But the K-series is very similar in design only it was built for a different platform. Had the K20 or K24 been in the S2K, it would have easily been able to achieve the same HP numbers. The K20A out of the ITR or K24A2 can make 230whp with just bolt ons, and that like 260-270 crank HP. Im making 265whp with a ported K20a2 head with ported RBC and 74mm TB and k24a2 stock block. Stock Pistons, Cams, Supertech valvetrain, 40*VTC.. Bolt ons are just full 3 inch custom exhaust with custom big-tube 4-2-1 header and 4 inch custom CAI. Im running RDX injectors.. I have a 8600 redline more for safety reasons and reliability as I could probably go to 9K if I really wanted to.
@@golf1diesel ..Please dont speak of the 458.until i get one..
@@golf1diesel Nissan's "SR16VE N1" engine was 125HP/litre (1.6 16v NeoVVL NA @200HP and 181Nm) in 1997-98 in the Pulsar VZ-R N1
As a owner of a 2005 tsx is amazing how good and strong after 15 years later it still runs like new
Im an 05 Tsx owner myself, I love my car
2012 Si here. 470k km and still going strong.
@@marc-oliviercabot3380 Before VTEC, consistently?
@@skvltdmedia Don't quite well understand the question but it was my daily drive/track car. Some mods and a tune. Sees VTEC often. :) Now it sleeps in the garage and occasionnally plays outside when the weather is good. I love that car.
2009 tsx owner here k24z3 still running strong
I’m new to the Honda thing... you explained things better and more clearly than any other Honda engine in video I have seen. Thank you very much!
Is that assy Mcgee in your avatar? :)
Great video! you used a pic of my k20 swapped ej! @4:46 thank you!
Man I wish I had this info when I was younger and fixed up my Honda. These types of videos are what makes CZcams priceless for me. So much free information.
Now that you did the K20/K24 episode, you'll have to do the F20C episode at some point...
Basically the same, but with better intake, header and a bit more aggressive camshaft. The bottom end look a lot like a mix of a H22 and a K20, with a Kseries style head.
Dude, this video is incredible. The knowledge, information, and detail is on another level compared to most CZcamsrs who just go over the basic info and say "So yeah because of these specs they're a great engine" lol. Please keep doing these videos with as many cool engines as possible. I really, really look forward to your videos! You're doing a great job, man, so keep it up! I hope your channel continues to grow because you definitely deserve it. Have a great day man just wanted to send some praise and a thank you your way!
I couldn't put it any better myself. Top quality stuff!
k20 in my toyota MRS. Amazing engine! the sound above 8k is just orgasmic. special engine for sure. one day it will hit 300whp NA.
I've been looking into the same thing for my MRS. How much did the swap cost you?
@@nerfinator465 Depends on your location and how much of the work you can do yourself. The States people say the K20 swap in-and-out-the-door for an MR-S is almost 10k USD, but that's with the owner picking their nose and having everything done for them.
If you source a rear-end totaled RSX from an auction, have a garage, an engine hoist, tools and know-how etc, you could get it done with around 5k.
If you don't have the tools, but have time to source the engine and transmission, wait for good deals on swap parts etc, but pay for labor, it's probably between the two ranges at like 8k.
Owning a k swapped EG hatch, and having driven my mums MRS a lot I’d love a go of a k swapped one.
The rap was everything. You are a master and anyone can tell the passion you have for a good piece of enginnering. That's why I want to change my R18 2009 Civic to an K20 Si. Cheers from Argentina. Great stuff to watch and learn.
You should swap a k24 into your mr2. Hux racing sells mounts and has a service to merge the the wiring harness.. I just bought an aw11 mr2 with no motor for 1k. .... right now I'm going through all the suspension bushings adding some WAT coilovers rebuilding the steering rack.. basically just follow your suspension series and repairing any rust I find along the way. I'm gonna use a K24A2 and a 6 speed k20 trans with an lsd.. :) all you need are the mounts and some slightly shortened and welded Honda b series axels.. they have the same exact spline and diameter as the toyota axels...:) This is a super balanced strong and cheap totally underrated swap for aw11 mr2s in my opinion.... and I'd love to see a build series on it!
Asked an engine build specialist what I'd the best engine. "Honda" he said. Reliable, durable, high rpm, and lots of power.
It’s very hard to beat the bang for the buck.
It's hard to say who's the best... If we're talking about consumer engines, then yes Honda and Toyota. If we're talking Motorsports, the most race successful engines are from Porsche and BMW...........Best All around engine manufacturer, maybe Porsche.........
@@MiguelGarcia-vj7oo i disagree. honda is good all around. matter of fact, as consumer street race if you look up GTR texas killer no other car on street could beat it. it pushes around 2000hp - viper, corvette porche couldnt beat it. then the honda known as frustateeg spank it. didnt cost no more than 20k.
@@MiguelGarcia-vj7oo Porsche yes. BMWs always fail
@@MiguelGarcia-vj7oo Honda engine is also bringing F1 wins for red bull
First I watched the 4AGE and wanted to build some of that Cosworth inspired goodness. But then I watched your 2ZZGE video and decided I couldn't resist the newer tech improvements. Now I've watched this and I'm making room in the garage for the K20 I want to build. Will you stop making these great videos so I can get started!?! (also just had to go back and thumbs up all these since I watched them in order on auto play (even watched a bunch of ads just to help the revenue!) Thanks for the great vids!)
BTW - it may not be iconic, but I'd love to hear what you think about the miata BPw4 motor.
stay far far away from k series. horrid engines. sacramento engine shop,. we had over 30 roll thru in the 3ish weeks i worked there all under 400hp. reheated shit if youre looking for power. also i assembled a few of the "stock block 500hp" k24s. nope. everything weisco. usually a cnc block too if theyre over 500
@@rattyratstuff7125 OK, I appreciate that real world advice. thanks.
@@rattyratstuff7125 dont spread miss Information. I build these for a living and your very wrong lol
@@Alexbuilt if you built them for a living. As in built high power drag. You'd know they pop like dollar store balloons.
@@rattyratstuff7125 I've done countless k series over the 1000whp mark lol.
You have three options with the k series
K20
K20/24 Frankenstein
K24
All three options are recommended. 👍
But which is best?
@@mixmixed.comics3002 K20 is the most fun. I prefer it to K24 or K24/K20 Frank. The plain old high-revving K20 gives the most traditional Honda feeling of chasing the redline. :) K24/K20 Frank is a lot more torquey, but I didn't feel it was actually more fun to drive.
(Plus you "should" really lower the rev limiter to 7500rpm on K24/20 engines if you want the engine to last -- it has a MUCH longer stroke after all. Where a K20 is quite happy at the official max 8600rpm or even 9000rpm... Whereas Revving a K24 to 8600rpm is equivalent to revving a K20 to 10,000rpm!)
The reason you want a shallow valve angle is because it allows a flatter combustion chamber. This in turn offers a better compression ratio for better thermal efficiency without needing to have a large piston dome (just look at the B16B pistons, some time).
A wider valve angle increases combustion chamber size and in turn makes room for larger valves.
the k series is very affordable now, most people would seek the k20, but i prefer the k24 from an acura tsx. i have an 06 accord 5 speed manual with the "economy" k24a8 and an toyota ae92 with the 4age. the accord is my daily beater and i took it anywhere , i took trips to sf and back which is 420 miles from me. car never give me any problem, run smoothly like a charm, mpg was fanstatic once i got on the freeway( average 33-35 mpg at 75-80mph), in town around 22-24. i did a couple poor man mod for the motor, swapping the intake manifold, throttle body from an acura tsx k24a2( i think), exhaust header from dc sports and cai( not short ram). and it does give it a very noticeable throttle respond. the ae92 is my toy, i drive it on my days off, and i can go anywhere with it also but the accord is the best car interm of comfy,mpg and also fun ( with my poor man mods) to drive. maybe the ae92 give me a little bit more smiles while reving it up but the accord really give u that comfy and torquie feeling on a long drive.
Great video, hands down. Thoroughly explained yet briefly and taught me a lot. I didn't know much about Ks until today.
D4A awesome vids! And just exactly when I wanted some info on the K20/24 here it is. Really appreciate you mentioned the rotation, important for swaps and as you say yourself, the fantastic similarity of the GM LS - plentiful and cheap and evrything else!
I’m a Honda guy 15 years now. This is a great video bro. 🤙🏼🤙🏼🤙🏼
Like the video. Honda has done a good job with the kseries. The last of the great Na 4cylinders. R. I. P Na cars as turbo has now taken over
I agree ... i owned multiple hondas before ... from the crx vtec to the eg6 ,ek4,dc5, ep3 ,fn2 those where awsome cars ❤ but as u said yes its the turbo era now
As a lifelong rotary guy, I’ve become a huge fan of the K24. The RSX from That Racing Channel is an absolute weapon. What’s astonishing is that those engines can make quite a bit more power.
Can’t give up on those raps dude, it’s awesome after learning so much about the motor you reviewed 👍 keep it coming!
This was a most excellent video with a lot of good info packed into it. Thank you, and bravo 👏🏻!
Best/most informative video I've seen on these engines, thanks.
Great info. The scream at 28:45 made me smile. I've had my 2003 RSX since 2005 and keep thinking about swapping the motor to a classic Mini. But I also want to build that car and have fun with it. Tough choice.
Just adding this comment after liking so that your channel gets recommended to more people because this is one hell of a video packed to the gills with useful, easy to understand information
9:25 And another error, K24Z3 and K24Z7 are performance motors, defined by three lobe vtec, which is what all performance motors have in common... doesn't matter what the exhaust manifold design is. Sure, it's a step down from having a 4-port exhaust exit, but that's not what differentiates a performance 3-lobe vtec motor. The others are meant for economy, meaning they have 2-lobe vtec, which works to save fuel by reducing 16-valves down to 12-valves below 2200rpm.
yes but the z7 and z3 is drastically restricted due to that simple fact man, they are shit by design thats why they take a back seat to the more favorable k24a/a2.....dont get me wrong ill still take one if given to me but if i had to pick or buy between the 2 theeeeeen.......... lol
@@majorkin19 they are all some of the best NA 4cyl engines, k24a2 is the best of all because it has the torque of a k24 and has VTEC on both intake and exhuast side, same with the k24z7 has good torque and VTEC only on I take cam, the K20z3 is a higher revving motor that makes good high end power but lacks torque
WOW!!! What an inspirational, let aside educational, video! What a sea of knowlege! The rap at the end is just priceless! D4A, You are sooo talented!! THANKS A LOT!
Just bought a 2007 civic type R ( fairly cheaply ), changed engine oil, filter an plugs etc, and that engine bounces off rev limiter no problem and purrs like a kitten at low rpm, six speed box as smooth as silk, i swear to god it drives like new, i am so impressed with it.
Really really enjoyed the K20Z3 especially, and driving my 2006 Civic Si for nearly 7 years.
Moving on to an AP1 S2000 and the F-series, it definitely felt like a more raw experience, more akin to the B-series.
So glad they firmly cemented my love for high-revving naturally aspirated engines.
Next stop: 4.0L flat-6, 6-speed, GT3 suspension, and AWD removal in a 991.2 Targa GTS body. 😍
09 TSX owner here. This video was honestly really educational and I enjoyed it. Ngl I always wondered why my TSX would rev up to 3K RPMs lol
I’ve watched this like 5 times and I already knew all of these facts from being a Honda nerd myself, great video. Can’t wait to watch it again someday
My first car was a base rsx with a K20A3. Wasn't fast but was a quality engine that sounded great, was reliable and had solid fuel economy. I was able to get into plenty of trouble with just 160hp
I fell in love with the K series when I found out it had a timing chain. The timing belt in my 94 Prelude Si snapped twice destroying the head and valves both times (69,000 miles and 120,000 miles). Then it happened in my 91 CRX Si on its original engine and the B16 I had swapped into it. Both were around 120,000 miles.
u should always do ur timing belt before it is due every 60k miles. so u should have done ur timing belt at 58k instead of 69k, and 115k instead of 120. do ur maintenance on time and u wouldn't snap any belt. i've always done my timing belt 5k miles before it 's due and i've never break any belt. just because it use chain instead of belt doesn't mean the chain doesn't wear.my accord 5speed hasn't hit 100k mile yet but when it hit around 120k mile i will get new chain and tensioner . those tensioner tend to fail as the miles go up with the k series.
@@antrinh5525 are you doing your oil changes, on time by the way you talking I can a say you are. the way the timing chain is build the tensioner takes up the slack and keeps the cams and crank in time.
@@crazeguy26 i do all the maintenance. the only thing i can't do is alignment and balancing the tires cause i don't have those equipments. there are people who never change the tensioner or timining chain and go over 200,300k miles, and there's timing chain and tensioner fail around 150k, but not too often, i would guess the way they drive and keeping up with other maintenance have to do with it. since the chain and the tensioner are not that expensive, i just want to do it around 120k for the sake of it, the labor is main cost but i will do it myself so no labor cost. i did lots of reading about the tensioner and apparently either ktuned or some other after market comp make a more heavy duty stronger one, i might go with it, for the chain oem would be just fine.
any engine that is interference out the factory with a timing belt is such a massive fail. Toyota masterace bb!
@@lockjawjak i didn't quite get wat u were saying, but own a 1990 corolla gts , it came with a timing belt, there has never been any problem with it, last month i did my timing belt , water pump job, car still run as good as before. same thing with my 2000 rav4, did the timing belt job a couple week before the corolla job, run fine and smooth as ever.
The problem with k20 in beginning was a few reasons: fuel system didn't have a return. Bottom end was weaker than B16. Also, they weren't compatible with older cars since they spun same direction as most manufacture (unlike previous hondas that spun opposite of most manufactured engines). They didn't have converted kits (such as engine mounts) to stick them in older civics. Few people understood how to tune them with VTC (alot of early tuners disabled the system)
Now the plus side K20A2 ( usa Rsx-s) head breathed incredible well.(port and polish only to be done in extreme tuning cases). Timing chains instead of timing belts (no longer had to be afraid of timing belt breaking and completely trashing engine). Once tuners figured out how to tune using VTC. You no longer had to adjust cam phase via loosing bolts on cam pulley, adjust it and tightened bolts. This variable cam phase via Vtc made a high tune engine run better through out the range of rpms.
Also, because the head breathed so well on K20A2, a simple cold air intake could give you over 5٪ more power in mid to high rpms.
Amazing video, you explained the differences and what the K series engine is capable better than anyone with no glossing over any finer details or wrong information. I used to have a FD Honda Civic sport with the economy K20z and I was quite disable with the performance but I know it's because of the differences in design. I currently have a Honda Jazz with then L15A which was a single cam VTEC engine that replaced the D16 engine in the previous generation. It's a lively engine that makes the same power and torque as the D16 with less capacity but much better fuel economy. It has also responded well to mods and sound great with a full exhaust. But it's very hard to find any tuning information in English about it as most tuned versions I see are in South East Asia where it's more popular.
What about the reliability of b series transmissions vs. k series transmissions? I think that if u made a side series about classic tuner transmissions & the aftermarket support for them would really be interesting & would help grow ur channel
Ps great job i loved the video & all ur content . u really do ur research & put the time in on the videos & i think ur channel is on top of its game for what u do
K20 swaps are really special. There is only one problem with them.U need to have in reserve at least 2 clutches. Last 30 days 2 clutches burned(perhaps because of COVID-19 isolation) . Soo addictive to launch and rev the f... of them.Very nice video.Thank U.
Sounds like you might need driver mod.
You must not be breaking them in properly and riding the clutch at like 5-6k every time you launch like damn bud.. and buying some cheap clutches.
@@kseriesdan9722 guys a ricer.......... probably doesn't even know what heel and toe shifting is.............
Love my K20 (2002 Acura, RSX Type-S). I didn't baby it but i didn't abuse it either. 320k miles. Original clutch. No engine work. Super reliable engine. Only suspension mods: coilovers, sway bars, 17 inch rims (2002-2003 rims were 16 inch). This out handles most cars.
Man been waiting for this one, thank you!
Just my two cent:S 2000 engine has a BMEP ( max power) of 12,82 bar, Ferrari Enzo has 12,44....
Great engine and great video,as usual.Thanks a lot. Love this Channel,bye.
Can we get an episode on the Mazda KL series V6? Split crankcase and basically 4 bolt Main with the whole bottom half of the crankcase serving as the girdle of the main bearings, forged crankshaft, great flowing heads, piston oil squirters. Very very underrated engine.
Awesomeness! Thank you!
I now love my RSX-S and TSX even more!
Great info and insight on these motors.
What a fantastic video... Thanks for the upload.
Your videos r just amazing!!! I get to learn so much from em ...i havent been watching your vids for awhile cuz i was busy but it's so great to be back ! Love ur videos bro just so informative plus u got raps in every iconic engines episode not that cringy i enjoy those raps of urs lmao 😂👍
*_ゴゴゴゴ"Awaken my Honda people!"ゴゴゴゴ_*
Menacing
Pillar men theme intensifies.
Great channel, terrific info. Really enjoying them. You probably plan to but consider doing Nissan VQ and VR series, VW EA888, truck engines like Jeep 4.0 I6, Cummins diesel and BMW N54 / N55.
Very long but very entertaining! Awesome job
Following!
The rap was nice and made so much sense. Sir you are very intelligent. Thank you for all the videos. I have watched all your videos even the new ones. I just went back to this video to show a buddy why the K series is the bees 🐝 knees.
IMO one of the best engines EVER
Amazing Video and sweet wrap-up rap🙏🙏🙏
Very very cool video!! I have a k20a3 now I know that I won't bother doing anything on it and swapp a a2 or k24. Thanks a lot for all these info
I love that someone has finally done a fantastic job breaking down the major differences between the various different versions of engines within their respective family with a focus in mind for performance. Too bad AEM backed out, you know they will be demoting the advertising manager who made that call after you hit 1million subscribers 👊.
The whole "most power per liter" statement is accurate, as long as we aren't going to mention motorcycle engines. Just off the top of my head, the first gen Hayabusa debuted in 1999 and had roughly 133/liter. There are others as well, but everyone knows "the Busa". Still, the F20C was/is an impressive platform nonetheless.
you got some sauce on your shirt ;)
really really good vid as usual! Stay safe!
Honda after 2000 made ugly cars but amazing engines, they should bring back the late 80s and 90s style
I agree
Imagine calling the s2000 ugly lol
That just means you are old.
Just fit the new engines into the old chassis. Win win
Great video! Keep up the great work!
Educational and informative video. I learned some stuff I didn't know.
Lol I wanna go drive my '06 SI right now !! Great vid!! Also a fan of the GM LS !
I love these videos about engines please do more of these thanks
Love my JDM K20A in my Civic Type R. Its incredibly tough and has been insanely reliable. Im on a journey to own all of the JDM Type R's, selling my Civic soon as my Accord Euro R (K20A as well) is arriving from Japan in a few days. I can't wait!
Your content is great!! You make us want more!!
Amazing video my friend
The rappin' at the outtro oddly was my favorite part. Didn't see that coming.
Nice work, very informative.
Great video! I can see why people would think the k24z7 engine is an economy motor because of the ivtec only on the intake side. However, the motor is beast when adding a turbo kit to it. Most if not all k24z7 motors make over 400whp on ~10psi with something like a 6262 turbo. N/A wise, yes, they aren't the greatest; however, you can always do a k20 head swap on these motors (little known fact).
I heard many times about the head swap. But how is it working with different bore?
@@stanstanxxx the k20 head swap is almost a direct bolt on.
Made 450whp @13psi with a precision 6262s on a stock k20z3. Made 560whp @18 psi with E85. Bone stock k20z3 besides the thicker head gasket....
@@GooGz nice!
There is so much content in these videos that I have to watch them twice to take in most of it. Sections I will watch three times, and I stop the video frequently to study the provided examples of hardware. Despite the silly delivery, the rap at the end, and all of that, these videos are perhaps the best and most accessible single set of documents describing the design decisions behind all the major engine configurations of my life time.
I wept tears of joy when reading this
Great video man
Thanks for another great video!
In America at least the K series is the LS of four-bangers.
The answer is in aftermarket products.
Some engines are obscure and have very little aftermarket support.
Some engines have decent support: you can get headers, cams, intakes, and rebuild kits.
Some engines have really good after market support: turbo manifold options, crankshaft options, oil pan options, turbo kits, supercharger kits, and swap kits.
Then there is the LS: if it is out there, you can get it for an LS. Crankshafts/camshafts that change firing orders, any type of power-adder option (including Roots supercharger), any type of exhaust manifold, HUNDREDS of off-the-shelf cam options and dozens of off-the-shelf cylinder head options.
Don’t get me wrong, they are good. I helped someone build a 300hp NA K24 and it rips.
Ended up here by accident as I am in V8 's but your explaining it very well and keep interesting.
I began fkn wit ur vids after the 3sgte stuff. Some these chumps just don't Kno bout that Yota power. But since I can't get an Altezza w/BEAMS, I've got a Civic, looking for a good K to throw in, so much love man. Keep the Icons Rollin bruv.
Fantastic video, learned a ton -- considering a k-swap on a Starion/Conquest
I like that variable intake, I ran a Offy split port four cylinder manifold 4 barrel holly on a highly moded lima engine, ( 2,3) stock bottom end the motor was a turd at 85, milled the head to 11-1 crane stage2 cam kit, hooker headers and adjustable cam sprocket ( you have to do that when you mill the head, the lima 2,3 is a non interference engine until you start messing with domed pistons and milling the cylinder head, when I ran a 390 Holleyj jetted by looking at the plugs, the four primary ports would freeze when acclerating, dual points, accel blaster coil and split fire plugs, it made around 140 hp
Thank You!
For not depriving us...
😃
Love your videos man ❤️
I've been looking forward to this one for awhile :3
Actually, GM did try DOHC with the Northstar. It was a complete failure. Yet they did DOHC on the Corvettes in the 90's. They did alright on that.
The Corvette is because lotus develop de dohc for the lt5 of that time
Wasn't really a failure. It had issues. It just wasn't given time to bloom before they killed it.
hey mate, thanks for the info on the K series engines, I watch a lot of Boosted Boiz, and PFI speed videos, 90% of any build they do has a K series engine in it, even the J series V6 engine too :)
Nice work brotha!
Excellent episode man.
Dude, you made my day!! Thanks a lot!!!
Definitely way 2 go k20 & k24. The B series & H series R excellent engines still. I just wish when they came out in the 90,s they had timming chains instead of belts. 😉
You’re the best bro I love these videos
Yes so happy you finally did this video awesome work!! Love my k24/20 swapped 2000 civic!
I wanna do one but some people scare me with the prices of it and making it like 300hp . Like damn is it that expensive haha
One of the best videos about engines I've ever seen!
Funny too!
I wasn't bored for a second!
well! My favorite engines?
Alfa Romeo and Honda!
This is realy good job guy !!
This video was really cool and informative, i'd love to see one about subaru's FA20 in the futur
Loyal fan here. Awesome video.
On the subject of the direction of rotation, isn't this also the reason you don't see B series engines swapped into RWD applications because they spin the wrong way?
Also on tuning the K20 realistically you can get up to around 250hp peak power with bolts ons and a tune at a reasonable price and although thats not a huge jump at the top end you will gain 50-60hp in the mid range so the power becomes much more accessible and at a much earlier point in the rev range, now if you're aiming for 300hp the cost of CNC machining the head, RRC inlet manifold, cams, ITB's etc... you are knocking on the door of FI setup cost so not a lot of people go there and you are actually much better off going for a K24 block with K20 head which you can put together mostly out of parts from a junkyard, the trade off is lower RPM but you can hit 300hp NA for less money.
Not a honda guy, but i'm wondering why you would use the k20 head on the k24 block if the k24 head has larger valves. Does the k20 head flow better than the k24? Or is it something else like the chambers are smaller or something of that nature?
Lucy Smith yes k20a2 head would flow better. And has more aggressive camshafts. Unless you have a k24a2 from tsx then I would leave that k24a2 in one piece. Any other k24 (a1, a4, etc) is more economy based and would benefit from a type s (a2), type r (k20a), or 06-08 si (z3) head.
I don't know why it would be lower redline, just upgrade the pump. Then you can do 8k revs all day. With stock cams that's all you'll need anyways since power level won't go past 8100 or 8200 Rev. More torque always feels fast tooo
Thanks for making this video, I love it men, this if my only engine is like it's like it the best
Powah!!! You make great videos!
Thanks man this really taught me alot 👍🔰
I had a k20/24 build. Super sweet. Made 250whp on a mild street tune. I would go Kraftwerks supercharger kit though
Such a nice video!
Interesting explanation discussion of all K series engines, I wish I could replace my K24A1 with a K24A2 into my CRV.
Great video man ! 👍😳
one of the best k swaps ive seen is someone put a k20 type R into a lotus elise 111s 😲 what a fantastic idea it was awsome left me and everyone else for dust 😂