Procharger stage 2 pully sizes.

[WhiteStang]

Anyone have any input on procharger stage 2 pully sizes=boost output?

I have a stage 2 P1SC, with the pulley that comes with it and it makes 7.5 psi at 7500 rpm.

I want to make 9psi, im guessing mabye a 4.3 pulley will do it?

 

[Entrenched]

d1sc

My stage II D1SC make 10.2psi @ 7400 rpms with a 4.63" pulley. ATI told me every 1/10" = 1psi. Check your packing list and it will tell you the stock pulley size.

 

[WhiteStang]

Are you able to run pump gas with this setup? If so I think ill go with a 4.2" should put me at about 10psi. if .3 = 3psi

 

[rsb5772]

Does the increase in boost require it to be retuned, or will the a/f compensate?

 

[Entrenched]

boost

I am running out of fuel on the top end. Hopefully that problem will be solved soon........things would be really interesting with E85.

You will definitely need a retune, probably a boost-a-pump (I would at anything over 550 rwhp). I run 93 in my car and that is how it was tuned with only 15* of timing (13* at high rpm). For added insurance I run 32 oz of Torco at every fill up on the street. One bad tank of gas would be disastrous.

 

[WhiteStang]

Im making 562 to the tire now with 7.5psi at 7500rpm, I do have 58 pound injectors and a boost a pump.

I would like to keep running pump gas, Im thinking about 9psi and a boss intake.

I have ran my car at the track but I have the stock 235 perelli's but I did go 11.23 at 125 this way. My rims are out to weldtech to be widened ill be running nitto r on them.

 

[mixxer]

4 inch will make about 9lbs. Depending on the air.

 

[WhiteStang]

thanks.