Hey whats up K20a...just posting up a little sneek peak of my k24 frank swapped s2000. Almost 100% finished. I have one more tune session for my nirtous tuning and some adjustments. I have some more black anodized skunk2 parts to put on the motor. Plus im going to change up the suspension setup and swap rims. Its sitting on ap1 wheels and stock suspension with lowering springs so its kind of a sleeper in my area. More in depth build thread with more pics and videos coming soon. Will be adding stuff i miss on this post...enjoy

K-tuned and Skunk2 are the main companies that made this swap possible.

*Numbers: not going to throw exact HP/torq numbers out because rumors on the streets but barely 300HP and over 200 ft/lbs torq on first dyno session.
Planning to extract more on second session and start my nitrous tuning.

*2002 S2000*

-Head
prb-1 2005 type s head
supertech dual valve springs
supertech retainers
supertech keepers
stock ports
drag cartel stage 4 cams billet 8620
Golden Eagle head studs
custom Magnus intake manifold
skunk2 72mm throttle body
skunk2 black anodized vtec solenoid
custom fabricated matched intake with velocity stack filter
K-tuned thermo heat shield intake manifold gasket
K-tuned thermo heat shield matched thermo throttle body gasket

-Block
k24a4 block with papers 28 k when purchased ..
13:2 supertech pistons
tsx 2007 rods new oem dealer
oem bearings all oem clearence
oem crank
oem 2009 tsx tentioner
spunteck chain guide
oem tsx head gasket 87mm bore
k20a oil pump with correct chain guides and chain and gear all from a z1
k20 aluminum oil pan
skunk2 black anodized timing chain cover

-Fuel
currently tuned on E85
ID1000cc injectors
K-tuned fuel rail
K-tuned adjustable FPR with Ktuned fuel pressure gauge
Aeromotive 340 drop in fuel pump

-Transmission
stock with stage 2 ACT clutch with custom ACT flywheel

-Cooling
Mishimoto radiator



-Custom swap parts
custom fab exhuast manifold with black heat wrap, ran straight into a dual N1 titanium tip invidia exhaust
custom Innovative motor mounts and tranny mounts
custom fab tranny adapter plate
custom ACT flywheel
custom modified ap1 engine harness
K-tuned alternator relocation kit
K-tuned swivel thermostat housing
K-tuned custom upper hose housing neck
water pump auto belt tensioner shaved off to clear Magnus intake manifold

-ECU/electronics
Haltech platinum series standalone
NGK powerdex AFR gauge




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I can apreciate the work here, but what was wrong with the F2x?

 

K-series > F-series

It's just that simple.

 

Would have been cheaper to put a Ls1 in it and you could have made 500 horse with just a single cam.

Explain.

 

Yes please explain. Not hating here but, thats like saying Red>Blue...

 

and OP, this is honda-tech, not K20A...not a fan of this at all

 

ehhh E for effort

 

Kudos for being diff and doing your own thing. But I am also curious as to why not just stick with and build up the F? Is it just to say you have K swap in a S2K, or is there some other motive?

Best of luck.

 

*first main thing is having the VTC GEAR on the intake cam and a I-vtec system...being able to make ADJUSTMENTS ON THE INTAKE CAMING ON THE FLY just makes way more HP/torq and smoother power over the F series engine...just simple tuning makes power out of the K and even gear swaps....rumors of newer K series engines in the future have a VTC gear on the exhaust cam too we ll see...they sell kits to put VTC gear setups on the f series engines but requires machine shop work and its just a lil hassle no biggie...where a guy on a budget on the street might not have the money to do so

*next thing is that the k series has no FRM sleeves from the factory like the F sereis do so we are not narrowed down to certain piston selection...the f series you have to run Mahle pistons with the same material or sleeve the engine to be able to run different pistons...where a guy on a budget on the street might not have the money to do so

* the other main reason is that the K sereis has alot more aftermarket support and its way more easier and cheaper to build...you blow a f20/f22 from a turbo setup or whatever it ll cost you about 1000 bucks plus easy to replace the motor...in the other hand i can go to the junkyard or anywhere looking for a CRV TSX ACCORD CIVIC RSX etc and find a shortblock/longblock for half that price...

* theres no replacement for displacement...the k24 just has a bigger bore and bigger stroke yielding way more TORQUE and HP....especiallly with the s2000 being a lil heavier then other hondas the torq makes the car fly in low RPMS where the f series you have to rev it high
stock to stock a k series just makes more power then a f20/f22 would make stock
just simple bolt ons and adjustments on the vtc makes power...a k series can make more power on stock sleeves then a f20/f22 depending on tuning and health

*i can go on and talk about demsions, bore stroke ratios, materials etc...but the K just makes the power easier smoother cheaper...and has the potential to make big power the same way

im not hating on the f20/f22... one of the best designed engines out there...being able to rev up that high is amazing....its not like im swapping an engine from a different company..sticking to honda motors... fits perfect in the engine bay and the k series and f series are not far apart in design...all the fastest all motor hondas are all running K series engines

one of the fastest inline 4's out there running low to 7 second flat times is from Import DPS el freddy....RWD platform running a K series engine...last i heard the whole car was for sale now...heres a link to many vids of the car...theres many examples of the K series swap improving other car platforms...you dont see people swapping in f20/f22 in lotus's or whatever, its all k series...im not the only one with the swap...theres plenty of guys running this setup for SCCA to have an advantage in their rule restricting classes...

 

I'm a die-hard s2000 owner, and it's complicated comparing these two motors. Honda built/tuned our F-series motors with the power and balance intended for a perfect n/a track car with minimal mods needed. The K-series I believe was built for a different purpose.

In terms of design the F-series motor is superior (i.e. forged internals, perfect flowing head design, oil pump with >9k spin rate, excellent intake mani flow/design, factory tuned).

In terms of technology, the K-series motor is superior (i.e. i-vtec...allows a variable intake/exhaust valve overlap). With i-vtec this allows the engine to respond to mods better, and the engine will make high end power & low end torque by varying the amount of valve overlap based on RPM & Load. Also, K-series has more engine mgmt options & flexibilities. K-series also has a larger aftermarket base.

 

i didnt swap a v8 bc im sticking to honda engines lol i can make that power with a simple turbo setup....

 

This is a good build man. Also, this is an interesting topic.

 

What you do with the old engine??

 

Why not just turbo the F motor? instead of some crazy high compression build that wont make over 400. Guys are making 700-800 horse on stock motors. That civic is fast but guys are running 7s with s2000s that have F motors. The build has a lot of nice work and I'm sure you have put a lot of time and money into this setup. I guess its just not my cup of tea.

 

definantly not my cup of tea...you know im a purist kyle lol

 

Some people want different things than some other people.

 

damn, I didnt know that.

 

Kyle.... FYI: Winnings Winning, it dont matter if its an inch or a mile.

 

The more you know...the less you don't.

 

I would be curious to compare this motor to what Endyn has (finally) begun offering in the F22

 

thanks guys...excited to get it all done and post some more videos of pulls and races...i chose to leave all motor bc the s2000 was designed to be a all motor track car...but it didnt have the torq...anybody can boost their motor...but i am planning to rebuild and boost this motor in the future lol...the k20z1/k24a2 and the f20/22 are similar in design...ea: the heads, chain driven etc...the swap didnt cost much at all and didnt take much time to complete bc the motors are so similar like i mentioned the the k24 dropped right in place in the engine bay and everything hooked up straight over...how many guys do you see with 700-800hp stock f20/f22 s2000's???? how many do you see with 600hp plus stock k series motors? ALOT...the motors are stronger all around and have more tuning capabilities...ea: vtc gear/ivtec...what im trying to point out is that you can make power easier, cheaper, more realiable with a k series in stock form...everything is stronger...their knock sensor system is superior...bigger bores and strokes...more torq...so you could spool up turbos faster is you did boost it stock...just better powerbands and power in stock form...and then building it up would be easier for the guy on the budget bc of all the aftermarket support for k series...you dont have to worry about FRM sleeves like the f series does so we can run any pistons we want without worrying about sleeving...then we have the insurance that we wont be spending alot of money if we blow the bottom end up bc we can go to the junkyard or online and find a accord, tsx, crv, element for a replacement motor for half or even less the price you would pay for a f20 or f22...so its alot cheaper and easier to keep racing with the motor...its not like i swapped a motor from a different company its all honda blood line...just using a great honda platform and great honda engine to make a better car

 

Please use proper grammar. I'm not reading all of that.

 

hahaha

Its not That bad...

 

Sorry HondaKyle. That was all done on my iphone while working a friends s2k acutally. I ll make it easy for you to read:

K series > F series


I keep forgetting this is the honda s2000 section on honda-tech and the only place where people are asking why and are confused about the swap. Every other popular section everyone is loving it and sharing information. Most of the guys on here just bought a s2000 because it looks nice and its convertible. Probally mostly all stock. Also not knowing much about Honda motors and performance. Maybe a ride in the k24 swapped s2000 will help you guys understand why lol

 

I know the K20 is a great motor, I just feel like there are a lot of other options. Im sure you wouldnt have done when I did with mine and I wouldnt have done with what you did with yours. I just feel like its a lot of buck for not much bang. Ive been looking into the K motors and they are better than I thought.