sweet99ss

iTrader: (41)

Alright I'm trying to figure out what pulley I need to get to make about 6-8lbs of boost. It is a d1sc head unit with the 8 rib 7.65" crank pulley. Mods are LS6 intake/ported tb, LT headers/Ory, 3" cutout, 224r cam, and 3400 stall

sweet99ss

iTrader: (41)

Damn, no one has any idea?

speedfreak2685

iTrader: (12)

Totally a guess here but I would say 4.63 or 4.5 depending on how high you turn it. My car made 11# on a stock motor with custom cam at 6500 rpm and 4.25 pulley.

speedfreak2685

iTrader: (12)

Call Bob at Brute Speed and he will help you more than I could BTW

sweet99ss

iTrader: (41)

Think it's to late to call him?

speedfreak2685

iTrader: (12)

im sure he is closed

Bob@BruteSpeed

iTrader: (16)

I'd go with a 4.38" pulley with your cam to see 7 to 8 psi of boost. Bob

sweet99ss

iTrader: (41)

What if I'm going to be running a cxracing fmic and a truck inlet with 4" filter? Will this cause me to have more boost with the same 4.38" pulley?

Bob@BruteSpeed

iTrader: (16)

Not enough at 7-8 psi of boost to make a difference. Bob