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View Full Version : help with procharger boost probs

firehawk0922
05-19-2006, 02:48 PM
i have a 2002 firehawk installed a prchager for some reason the car will not build up boost. usuaully stays in 20-25 vac while driving it will go to almost 0 if some one can give me a hand with this that would be great....
Blown 25thT/A
05-22-2006, 09:18 AM
I have the same problem, and can't figure it out either. If you find an answer please share.
Chris 96 WS6
05-22-2006, 12:39 PM
I don't know anything about blowers really, but isn't there some sort of check valve that allows the car to build vacuum when the throttle is shut so your brakes work? Could that be malfunctioning so that it never opens to allow boost into the manifold?
NXSLT1
05-23-2006, 12:06 AM
I don't know a thing about centrifugals but are all yer intercooler piping and silicone couplings tight, no leaks?? Sure the belt isn't slipping??
Moparnos (The SLP Guy)
05-28-2006, 03:02 PM
if your guage isn't reading boost you have a leak somewhere in the pipeing. or your gauge isn't hooked up correctly.
pigpen
05-29-2006, 12:24 PM
If the diaphram (sp?) in the bypass valve is out, you're not going to build boost. You're just going to dump the bypassed air back in the pre-blower ducting. Also, if the vaccum/boost line from the bypass valve to the intake is off, damaged, plugged, or cut - the bypass valve will remain open, not allowing boost to be built.

Not saying this is your problem, but it's definitely something you should check out.
Transamman25
05-29-2006, 09:02 PM
Most probs are ussually associated with the belt not being tight enough .. it has to be crazy insane tight - no flex .. that was the only prob with my buddies 96 SS with the same set-up
Blown 25thT/A
05-30-2006, 02:42 PM
I have tried that with the belt, but all I ever get is broken belts.
Moparnos (The SLP Guy)
05-30-2006, 11:54 PM
I have tried that with the belt, but all I ever get is broken belts.are you running a procharger?
Blown 25thT/A
05-31-2006, 11:23 AM
are you running a procharger?


Yep
Moparnos (The SLP Guy)
05-31-2006, 11:31 AM
Yepto eliminate your belt problems run a SDCE belt tensioner.
Blown 25thT/A
05-31-2006, 07:05 PM
to eliminate your belt problems run a SDCE belt tensioner.

Do you have a pic of one? So that I know what I'm looking for.
Moparnos (The SLP Guy)
06-02-2006, 11:05 AM
sdce is the only people that make them. if your serious about making boost it's worth the money. i don't regret buying it when i had a procharger.

http://www.sd-concepts.com/cart/index.php?main_page=product_info&cPath=50_60_62_56&products_id=104
Zupercharged28
09-19-2006, 10:06 AM
i have a p1sc ATI procharger too. when i idle or let off the gas it hits a vac of 20 lbs... but when it gets to wind out a bit i make it to full boost. my boost gauge flicks whenever i tap the gas.

what is your boost set at? if worst comes to worst you can always call the procharger dudes...