Quote:
Originally posted by AREITU
The weakness of the H23 isn't in the valvetrain. The weakness is in the Rod/stroke ratio. It also dosen't have oil squirters. Merely slapping an H22 head, and ECU on an H23 is one of those things like, "Let's put a 427 in a VW Bug!" but with less technical problems.
The Rod/stroke ratio would compromise piston ring life, and oil seal. You'll need VTEC oil squirters, forged rods, and balanced crank, VTEC oil return line, and anything else a CR-VTEC or LS-VTEC requires to run up that high of an RPM.
As for VTEC and turbo, VTEC loses in a few areas:
1) Transmission. Short gearing takes you out of boost often
2) Too much overlap: Good for N/A. Bad for FI.
VTEC wins in other areas, though:
1) Revs quickly to build boost
2) Extra backpressure to build boost (I think)
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thanks everyone for your comments! just one question about what's above here...the oil squirters,vtec oil return line...ETC. that's for if you would be putting a vtec head on the h23a?? not just for raising the rev limit, right? i'm gonna put new pistons and rods anyway for the turbo sake, but just want to know exactly what i need to rev higher! Not planning on makin it vtec...too much work!
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