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tbird
11-10-2006, 04:42 PM
Ive have a P1SC Procharger carb blowthru setup for a SBC. 10lbs pulleys 6 rib
I bought it used. I've seen 9 psi constant on a chassis dyno .
When Im on the street or at the track it will read 5psi and jump to 7 during shifts and then back to 5. After the vehicle is warmed up , the belt will slip at start up briefly.

The belt doesnt look bad visually. I have set the tension as instructed by tightening the tensioner until the spring has bottom out and backed off a little.
Though I havent readjusted the belt after its warmed up.

I havent talked to procharger yet. I wanted to get some feed back from others
that have experienced this problems.
I have been thinking of getting the 8 rib pulleys.
Mike Coffey
11-10-2006, 08:34 PM
You really need to put a cog drive system on your blower and be done with it. No slippage with one of those. Probably not the answer you wanted to hear.
Jim Filipowski
11-11-2006, 12:02 AM
Best to call procharger. I think a 6 rib belt only good for low boost .
Flex
11-14-2006, 10:50 AM
i've been lucky in the sense i run a 12 rib belt on my street car and have had no slippage problems. it's been good for 18# boost. Cog is obviously the cure all though.
allshownogo
11-14-2006, 01:07 PM
The renegade guys run 8 rib as tight as a guitar string. I don't think it's possible for a 6/8 rib belt to be too tight. Not positive though :confused: ... because I run a cog!
tbird
11-14-2006, 02:17 PM
I was just reading the replys and realized I must have been smoking the crack pipe when I posted my question. I stated 6 rib. Nope. I currently have 8 rib pulleys and was looking at going to 12 rib.

I know the renegade guys have a support bar(they call it a strut) between the crank and the blower pulley so they can go crazy on belt tension and not take out the #1 main bearing.
I like the cog idea, but have read that the bearings in the P1SC cant take the abuse from a cog.

Thanks for the replys.
Flex
11-14-2006, 05:22 PM
i know you wont believe this but my F1 is mounted on my orig. P1SC brkt and i'm still using the same tensioner tightened per
ATI's mark without any problems.
Cooperacing
12-25-2006, 09:46 PM
mount that thing to the crank and be done with belts!! Check w/steve morris