Any evidence online of anyone successfully reving out F22b1 engines to 8, 9, or even 10k rpm?
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Bottom end geometry is not favorable for those kinds of RPMs. The head also flows very, very poorly. You would need serious head work and porting just to make 7500-8000rpm viable.

 

Yeah, I've seen 7k on engines that were built, ported heads, valve train,stronger bottom end. And I heard someone had a track car that pushed 8500 sometime ago, but I never found anything.

De-Stroking, valve train, porting, lighter rotating assembly...maybe then, maybe 8-9?

 

Best to just switch to something like an F20B at that point honestly. If you must have high RPM then an F20B will do 9k+ with just valvetrain and cams. The auto version with 180hp are about $600. If you're planning to mod it that's the place to start. Throw in valvetrain, cams, bolt-ons and tune and you've got a 9k+ rpm 2.0L for <$2500. Probably 230-240whp. No need to touch the bottom end as they have a very favorable geometry for that kind of thing.

 

What is your overall goal here, Max power and torque or Max engine speed?

The F series SOHC engines were designed to make fairly similar power to the smaller displacement higher revving engines(6500-9000 RPM) but at lower engine speeds 4500-5500rpm. This kept them more reliable for a daily commuter. With a bit more compression and a properly designed intake, exhaust and valve train, you could easily see the same numbers out of a SOHC without revving to 9000 - 10,000 RPM.

Bisimoto took his fully built 1991 F22A1 to 430WHP @ over 9000rpm

https://www.youtube.com/watch?v=2Dw4...ature=youtu.be