Quote:
Originally Posted by MattG
Just a few notes before I start:
F20C = 2.0L S2000 engine
F22C = 2.2L S2000 engine
The piston speed of the F22C @ 8k is about the same as the F20C @ 9k. But the stress/forces involved rise greatly with increased rpm.
As piston velocity increases you put increased wear on rings, rods and bearings. The increased stroke length of the engine creates high sideloading on the cylinder walls which at lower rpms would probably not be an issue, but when things get exponentially bigger at higher rpms it may certainly be an issue.
I have heard of somebody running the early model ECU (F20C) on a late model engine (F22C) that supposedly didn't cause problems. But I'm not sure if it was a race car and like all race cars they rebuild their engine quite regularly, or if it was a daily driver.
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u know I just knew someone was gonna bring up the displacement difference...yes yes i realize the 200cc difference and a mildly different stroke velocities at different RPMs...all I was saying is if one motor (AP1)can rev almost 1000k over stock(with internal mods ofcourse to expand the powerband) Then the ol' AP2 should be able to eeek out another 600rpms...thats all I was sayin you know? I mean what you think? I mean its not really that big of a deal in the first place but just some food for thought i guess...