boost

[02svtlightning]

i have an 02 lightning with 3 inch spintech exhaust, mac cold air kit, Diablo delta chip. my question is how much boost can these motors hold with out damage to the motor. wanted to add a 6 lb. crank pulley but my factory boost guage pegs at 10 psi. any help

thanks john

[L8 APEX]

Get a boost gauge so you know what you are running. Your limits before damage depend on the tune 80%. I know some guys run 6lbs w/o probelems. I prefer to stay around 4# for daily drivers. IMO.

[VETEATR]

I have an 00 that I have had some problems with. I have done extensive research on these trucks and you should run no more than 13 psi if you want a dependable truck. Aything more and your in troube of hurting your supercharger and/or your engine. Anything over 13 psi and your supercharger is being overspun. When that happens then the berrings mostlikely will go out and get in your engine. If that doesn't happen they the next problem is the con rods. Anything over 13 psi and you are endanger of breaking one of those.

Good Luck