F-Series and i-VTEC
Originally Posted by '05 S2K SBM,Oct 30 2005, 12:53 PM
Are you talking about having something like a F20/F22 block and a K20A2 head? I have no idea if something like that is even feasible.
Then, that would probably be expensive as shit.
Basically, is it possible to add i-VTEC to a Fxx?
the k series development is loosely based on the f20c design and the f20c development is based on the f20b design. basically the k series is developed after the f20c, and it is just an improvment in techonology. also it's possible to fit the k20 head on the s2k block but it would take major funds to even comprehend such task. for example the f20c's intake/exhaust cam is driven by a gear that is driven by the timing chain which connects to the crankshaft. while on the k series the timing chain drives the intake/exhaust cams like the b/d/h/most of f (except the f20c/f22c.)
Originally Posted by '05 S2K SBM,Oct 30 2005, 02:05 PM
i-VTEC allows you to fully tune each cam angle and thus make the most amount of power while still maintaining a high degree of efficiency.
It really disappoints me to know that the K-series engines have better tuning capabilities than the F-series.
It really disappoints me to know that the K-series engines have better tuning capabilities than the F-series.
Also, the K-series was essentially designed FROM the F series in the S2000. The K20 essentially derived from our engine, hence the reason we don't have i-Vtec.
Originally Posted by six_speed,Oct 30 2005, 04:34 PM
the k series development is loosely based on the f20c design
and the f20c development is based on the f20b design.
the F20C was designed from the bottom up, and was not based upon another platform. The only thing the F20B really even has in common with the F20C is the engine code name. Otherwise it's a new engineered design.
Originally Posted by steven975,Oct 30 2005, 11:16 AM
yea, i've seen lots of "300" HP NA RSXs/Sis. C&D super4 shootout cars couldn't even get into the 13s for christ's sake.
a 300HP RSX should run a 13 flat or less.
a 300HP RSX should run a 13 flat or less.
My 176 whp 173 wtq 00 civic EX with factory open diff ran 8.52 @ 82.XX mph with a 1.8 60 foot time. I guess that converts to about 13.2 @ 103 in the 1/4 mile. A 300 whp RSX on slicks should be lmid to low 12's easily
Originally Posted by RVM,Oct 30 2005, 05:05 PM
But would the curve be flatter on the K series? Would the peak with a Fxx be enough to outweigh the K motors with i-VTEC?
As for the 2nd question, that depends. Are we talking about leaving the engine in an RSX and an S2000 respectively? If so, then I think if you built both to the same extent to get as much power as possible, you'd still find the S2000 reaching the end of the 1/4 mile first.
At the moment I believe we have 2 S2000's making over 850whp on about 34psi.
Originally Posted by Wisconsin S2k,Oct 30 2005, 04:03 PM
Tuning, maybe. however, with enough money, the S2000 has more potential for peak power than the K series engines.


