3SGTE with stock internals will take over 30 psi if there is no detionation but the standard head bolts seem to stretch above 30psi so 25 psi is safe , My 3SGTE with standard internals hits 30+ psi every day but have stretched the head bolts , Keeping it under 30psi I have no trouble with the bolts , I now have ordered a set of ARP head studs , I will then see how it handles more boost .
Sun, 13 April 2003 10:27
