Originally Posted by ludeboom

well if your planning for forced induction, many people use the h23a1 because it has no VTEC, which takes some of the tuning problems away. there really arent problems with boosting an h22, lb for lb, the h22 if properly tuned and built up, and the h23a1 if properly built up...the h22 will make far more power than a h23a1 boosted.

you will want to sleeve the h22 block (darton is a good choice), add forged rods, forged pistons, and you are done with the block. the h22 crank is balanced to over 8500 from the factory, and some say its good to 1000 ponies so its fine. on the head side, you will need cam gears to dial out all the duration overlap on the VTEC head. other than that the head is safe to 8000, and alot of boost, head gasket wise you have a few choices.

i dont think you should lower compression, keep it at 10 (USDM). build a motor that is designed to prevent detonation rather than withstand it.
all that means to you is bigger injectors, an intercooler, and some electronics (which you will need anyway).

all this is true between SC or turbo, although i would recommend turbo if you are going to build a motor anyway, SC is more of a cheaper and safer alternative.

either way...
i say:
sleeve's
rod's
piston's
cam gear's

for a bulletproof h22

~boom