Originally posted by PWRVTEC
Boost (psi) is just a number, a measurement of restriction. You can blow an engine on 8psi just as easy as 20psi. Tuning is the key.
The Greddy kit comes with an 18g, so that turbo will require you to need more boost than say a bigger turbo. So in theory you could run upwards of say 15-20 at the track with race gas, and up to 15 or so on 93 but tuning has to be on point.
But remember a turbo has its limits so when that is hit the efficiency drops and that can be bad for the engine by creating more heat.
So when you mean fine Tuning, do you mean good fuel tunning managment & air flow?

Would a upgraded stronger thicker head gasket make a difference?