Harryman2002

So this friday i locally bought a used Vortech V2 Si trim and the only pulley he had, he included in the sale. Its a 3.60 pulley and from what ive seen on here 3.33 is what you should get to have around 9 PSI and about 370-400 RWHP.
How much PSI/RWHP would I probably make with the 3.60 pulley?

MustangMan00

i made 380 through an auto trans with a 3.60 pulley on 8.4 psi

Kerns

3.33 is good for around 9psi if you have an intercooler. Without the intercooler the 3.60 pulley will hit 7-9psi.

Harryman2002

So an intercooler reduces the amound of boost?

Kerns

Yes. Reduces boost pressure but will decrease temperatures. To achieve the same amount of boost with an intercooler that you would have without one, you will need to drop down a pulley size.