Procharger pulley question

[inglimer]

Have an 06 GT with a procharger p1sc at 10# boost. Am I right in thinking the 3.4" pulley would be the right one to move into the 11-13 # range?
Figured one of the procharger owners here would know.
Also, do I need to change belts and brand\model, or length?
Thanks.
Jack

 

[05stroker]

Have an 06 GT with a procharger p1sc at 10# boost. Am I right in thinking the 3.4" pulley would be the right one to move into the 11-13 # range?
Figured one of the procharger owners here would know.
Also, do I need to change belts and brand\model, or length?
Thanks.
Jack

A 3.4 made 12 psi on my stock motor. That is also the amount of boost it took to window my block.

Do you have a built block? There is a thread here with the belt lengths you need.

 

[46addict]

Dont know about the other pulleys but I know a 3.4 uses a 68" belt. Gates part number K080680 if you're running a 8 rib setup on the stock Procharger damper.

 

[swflastang05]

What size pulley are you running now? My P1SC1 with a 3.70 made around 10-11 psi then switched to a 3.40 and made about 13-14 psi on a stock motor. This is with the 7.5" crank pulley IIRC.

 

[05stroker]

I guess I did have LT and an xpipe when I had my 3.7 at 12 psi. It hit about 13 when the air was cold and that's when the stock SB went.

 

[swflastang05]

I guess I did have LT and an xpipe when I had my 3.7 at 12 psi. It hit about 13 when the air was cold and that's when the stock SB went.

I did too, it was a stock long block though

Sent from my SM-G900P using Tapatalk

 

[mac10chap]

I guess I did have LT and an xpipe when I had my 3.7 at 12 psi. It hit about 13 when the air was cold and that's when the stock SB went.

Same here. LT's and H-pipe and 3.7 was making right at 12PSI of boost. I too blew my first motor like that. Stuck another stock motor in it and been running it ever since. Currently about 50K miles on the 2nd motor

 

[46addict]

What size pulley are you running now? My P1SC1 with a 3.70 made around 10-11 psi then switched to a 3.40 and made about 13-14 psi on a stock motor. This is with the 7.5" crank pulley IIRC.

Was that with the stock Procharger power pipe? And the stock crank pulley is 6.875" right?

I am making 9.7psi on a p1sc with a 4.13" pulley. Longtubes, o/r x pipe and hot rod cams. Stock heads and intake manifold.

 

[swflastang05]

Was that with the stock Procharger power pipe? And the stock crank pulley is 6.875" right?

I am making 9.7psi on a p1sc with a 4.13" pulley. Longtubes, o/r x pipe and hot rod cams. Stock heads and intake manifold.

That was with the Procharger HO kit, ATI balancer with Procharger 7.50 crank pulley IIRC. It was this kit:



and this crank pulley


I had the 3.70 pulley most of the time and it made 10-11 psi, I had the 3.40 for just a few months before I decided to sell everything and redo my combo but it made about 13-14 psi, maybe would spike to 15 psi for a second or two. Come to think of it I had an FRPP intake and Cushman Motorsports NSR cams with the 3.40 pulley also. Always had LT's and O/R H-pipe.