UsmcAlston

iTrader: (7)

98 SS A4
Stock bottomend LS1 W/ 72k
P1SC
Twin 4.5in ICs
Vigilante 4000k Stall
3.23s
BAP
80lbs Injectors
Stock 853s
615/598 232/240 114+2 lsa
Pacesetter LTs and ORY
Flowmaster Catback with a cutout
LS6 intake w/ EGR delete

Whats size blower pulley should i get to make 7-8lbs i have the ATI crank pulley 7.65.

Aster

iTrader: (9)

How high do you rev the motor up to? I would say probably 3.9" or 4" depending on how high you rev. The 3.85" made 9 psi on my stock bottom motor a few years ago with a 228/234 112+2 cam taking the RPM to 6500.

UsmcAlston

iTrader: (7)

around 6400-6500 yeah i think im goin to play it safe and go with the 4.0

flame

iTrader: (13)

I've got a 4" and see 6.5lbs at 6400 with a TR224 114lsa cam, stock heads and intake, ps lt's. I'm gonna try a 3.85 if it ever shows up