I have a 2002 5.3 RCSB Z71 It has several mods right now Edlebrock Headers, CUstom Tune, 42 lb injectors, 255LPH Fuel Pump, Flowmaster Exhaust, Powerdyne Supercharger running 9 PSI, Corvette Servo, Shift Kit. I was wondering what the maximum amount of boost that you would consider safe on a stock bottom end. I am currently at 9 which is the smallest Pulley that Powerdyne offers. But I am a Machinist so I thought about making one but I dont want to mess my truck up. Any ideas on how much would be safe. Also if anyone needs some custom parts made I would be glad to let you know if I can do it, I am only a manual shop with no CNC equipment.

 

2.93 is good for 6 psi,
2.70 is good for 9 psi.
2.50 is good for 11 psi, and I would not go any smaller unless you had the XB-1A.


too bad you do not live in my area, their are some things I want to do and I do not have the equipment to machine it out.

 

What kind of things do you have Iwould be glad to do them and send them to you when completed feel free to email me or anything