S2000 Under The Hood S2000 Technical and Mechanical discussions.

difference in F20c and K20a

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Old 09-17-2008, 12:51 PM
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Originally Posted by k24accord,Sep 17 2008, 12:29 PM
agreed to an extent. honda improved on the f20 on the k-series by the addition of VTC, which plays a huge part in how the k-series motors make power.
Not exactly an improvement IMO. It's makes the motor more efficient and gives it nicer bottom end. The F was designed to be as efficient as possible in vtec. Hence no VTC even on late model F series motors. More weight on the internals of the motor make a motor less efficient where it really counts, in VTEC.
Old 09-17-2008, 12:54 PM
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Originally Posted by k24accord,Sep 17 2008, 12:26 PM
to answer your question, 300whp has already been attained on a street driven k20/k24 hybrid. there is so much potential in these motors its ridiculous.
There's potential in K's and F's. Both have made 300+ whp all motor. Cranks are also interchangeable allowing for many displacement options.
Old 09-17-2008, 04:18 PM
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Well me owning a 2002 RSX S, i can say it was a damn fast car with bolts on i had. Put in Injen CAI, hondata ECU and IMG, Greddy SP2 Exhaust and never had a chance to go with the headers. But just with those 3 components the power difference was huge. Esp the ECU. After the total loss of my RSX, i got this car and i could not be happier. Yea i read here that mods dont really do much for this car, btu its prob as still faster than the car i had without mods and the suspension and handling on this car is what just did it for me, stiff as a C@&#!!
I did put in a tanabae medalion and K&N FIPK on this S, but it was mostly for sound
Old 09-17-2008, 05:35 PM
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Originally Posted by FoBangah,Sep 16 2008, 10:24 PM
I wish this were true but no. I can't remember which factory engine it is that has the highest power-to-liter/displacement, but the S2000 does have a more efficent engine than the F430. S2k=122.5 hp/liter, F430=114.43 hp/liter. Atleast in base trim. Eat that ferrari!!!
Yeah, I'm sure Ferrari is losing sleep over our 210whp motors.
Old 09-17-2008, 06:27 PM
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^No, but it's still a nice accomplishment.
Old 09-17-2008, 07:39 PM
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Originally Posted by k24accord,Sep 17 2008, 12:26 PM
ive been around a few different k-series builds, both NA and FI.

to answer your question, 300whp has already been attained on a street driven k20/k24 hybrid. there is so much potential in these motors its ridiculous.

forced induction-wise, i only made about 300whp in my old car but there are plenty of guys pushing 550whp on 100% stock k20's and k24's.
You can easily get 300whp out of a kseries and i dont see any 300whp f series N/A with out alot of work. Explain this is the F series is better
Old 09-17-2008, 07:41 PM
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okay, do this stock vs stock who produces more whp? Settled; theres always gonna be someone saying one thing and another person saying the opposite I think their both great motors but which one produces more hp per liter n/a than any other motor=)
Old 09-17-2008, 07:48 PM
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Originally Posted by 03silver2000,Sep 17 2008, 07:41 PM
okay, do this stock vs stock who produces more whp? Settled; theres always gonna be someone saying one thing and another person saying the opposite I think their both great motors but which one produces more hp per liter n/a than any other motor=)
ovbiously that would be the f-series. however, for every 1 fast s2000, theres 20 fast k-powered vehicles.
Old 09-17-2008, 07:50 PM
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Originally Posted by N2oExpresS2k,Sep 17 2008, 12:54 PM
There's potential in K's and F's. Both have made 300+ whp all motor. Cranks are also interchangeable allowing for many displacement options.
correct. however, making 300whp all motor on a k-series is worlds easier. it can be done with bolt on/off the shelf parts on pump gas while the same cannot be said for the f-series.

honestly, id love to see a k-series in the s2k while maintaining the rwd platform. that would be full of so much win.
Old 09-17-2008, 07:55 PM
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Originally Posted by N2oExpresS2k,Sep 17 2008, 12:51 PM
Not exactly an improvement IMO. It's makes the motor more efficient and gives it nicer bottom end. The F was designed to be as efficient as possible in vtec. Hence no VTC even on late model F series motors. More weight on the internals of the motor make a motor less efficient where it really counts, in VTEC.
thats highly opinionated IMO. everyone is different, but id much rather have a motor that makes power down low than up high.

not to discount the s2k because it really is a very fun car to drive, but my old k-series accord would put a hurting against my s2k if i ran them head to head. while in comparison, the accord handled like a u-haul truck compared to the s2k, it was worlds faster.


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