Originally posted by fizzbob7
stock, the h22a can handle 5-7psi and still be very reliable......i think the b18c can take a little more, but still, "either or" in that category....
I have to disagree on the turbo part...With proper tuning a lude can handle 10 psi and with just a lower compression head gasket and proper fuel managment, you can boost to 12 psi and reach 240 hp. (of course you don't boost 12psi and expect your engine to last) On the other hand the b18c5, the compression of the engine is a bit higher then h22, and it can't take that much boost.. I haven't see anyone boost more then 8 psi on stock internal...