Steve barbet

I have 2000camaro ss I put in procharger kit that was supposed to get8lbs of boost but only gets 4lbs have the 6rib pulley it came with. I have no belt slippage no loss in pressure everything is tight. Just wondering if anyone has done an upgrade on the pulleys and what sizes to go up to don't want to over boost but would like to get better boost at a lower rpm if thats possible.

sbcgenII

iTrader: (1)

What size pulleys. What rpm does it hit 4.5 psi?

Steve barbet

Not sure what size the kit comes with. How can I tell and 4lbs at 5500

Teddy-2000RS

It should be as simple as measuring the diameter of your crank pulley and snout pulley. Then it just works like a bike chain: smaller snout pulley more boost, bigger snout pulley less boost. Thats just based on leaving your current crank pulley.

Steve barbet

Thanks will measure it when I get to the shop later and let you know what size it is.