the h22 make more torque and hp at a lower rpm than the b18 also so the power comes in quicker

lowering you compression with a head gasket for turbo works fine if you tune your car right

it only gives you less power if you run low boost but the reasoning for lowering the C/R is so you can run 9+psi and the car can handle it more reliable because lower compression engines are more boost friendly

if you run high compression and turbo, you really have to fine tune the car and be careful how much boost your pushing

a B18 turbo with 10.2:1 compression boosting 6-7psi at 8100rpm can work but will leave very little room for error

what i don't understand is y some people are buying hi-compression vtec motors and dropping the compression to put turbo. i guess they are trying to have the best of both worlds.

Boost Lee Turbo Prelude