JC70SS

iTrader: (7)

Well my car was dynoed Sunday and it was a few hp shy of 500 at the wheels. I was told by a few various people that my 6" crank pulley and 3.85" blower pulley would get 7-8lbs. This is a 6 rib P1SC set up with hooker headers and stock heads and an MTI R1 cam on a 116lsa. So with having built a forged motor, what combo next spring do I go to to get 8-10 lbs of boost?

Jimmy P

iTrader: (177)

If you are having the motor built, I would suggest you upgrade to the D1SC with a 8 rib setup and go for 16psi .

JC70SS

iTrader: (7)

It is already built and installed and dynoed. A P1SC is fully capable of making me 8-10 lbs of boost, how do I get there?

AFASTYZFR1

iTrader: (55)

8-rib set up and pulley it to max out blower

JC70SS

iTrader: (7)

I am not switching to an 8 rib set-up. I can make that with the correct pulley set-up which I am looking for info on.

Jimmy P

iTrader: (177)

You will have to have it retuned, possibly on a dyno if you add more boost to it.

JC70SS

iTrader: (7)

yes I realize it will need a re-tune, I also need 60# injectors. Should I get a 3.20 pulley or a bigger crank pulley?

AFASTYZFR1

iTrader: (55)

belt will slip with 6-rib

AFASTYZFR1

iTrader: (55)

Bigger crank pulley would be better.....might slip less