#642, "RE: what kind of psi are you built internal guys running?" In response to In response to 0
My crazy ass took my car all the way to 25psi in second gear. Had no traction so didn't bother boostin that much. I raced 18psi with "TRICK" racing fuel. Smoked da shyt out of some saleen mustangs and old school supra turbo's etc. etc.