i have b18c5 (itr) engine whit b18c1(gsr) je 9.1 compression piston i know that the itr head will make lower the compression by .2 aprox 8,8.1
my question is at stock 10,6.1 and now my new compression 8,8.1 at the same boost 8 psi is there a big lost in power and would it be more laggy?