O odie84 Member : 2003 mazdaspeed protege Feb 10, 2014 #1 I'm about to start my build and am curious what the max psi on stock compression is. Or if I lower the compression now woulf I notice much out of boost?
I'm about to start my build and am curious what the max psi on stock compression is. Or if I lower the compression now woulf I notice much out of boost?
S SpicyTarzan Member : Mazdaspeed protege Feb 11, 2014 #2 I'm running 8.5 compression don't really notice any difference at all
