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Lost some boost somehow

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Old 09-21-2008, 07:47 AM
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Wally39
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Default Lost some boost somehow
A while back I put a smaller pulley on my Saleen blower and had 9.5 lbs of boost. That lasted about a week. Ever since I can only get about 8 lbs. Anyone know why?
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Old 09-21-2008, 09:04 AM
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jahudso2
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Leak in intake piping, belt slip, did you add headers?
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Old 09-21-2008, 03:00 PM
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Wally39
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No headers. If the belt slipped would I hear it?
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Old 09-21-2008, 03:01 PM
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Dwisforme05
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i bet it is the belt too
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Old 09-21-2008, 03:04 PM
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sevenleaf
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What size belt and blower pulley are you running and what idler pulley do you have installed?
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Old 09-21-2008, 03:14 PM
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Wally39
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3.4 pulley. My idler pulley makes a whining noise.
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Old 09-21-2008, 04:08 PM
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moosestang
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Originally Posted by Wally39
3.4 pulley. My idler pulley makes a whining noise.
If all your pulleys are the stock ones, you might benefit from a 100mm idler pulley or 90mm tensioner pulley. I'm not sure if you can run either of these with the saleen belt routing though.
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Old 09-21-2008, 04:22 PM
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Wally39
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yes, they are all stock.
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Old 09-21-2008, 04:30 PM
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hammeron
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wally i'm thinking it's either something
to do with the boost actuator or maybe
a vacuum leak.

if you had a vacuum/boost gauge, we could rule
the latter out (you'd be able to see something
is different).
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Old 09-21-2008, 04:48 PM
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hotairgypsy
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i assume your running a 6 rib belt setup. i am betting belt slippage to...get the 8 rib kit and I would bet problem be solved with new belt. how many miles is on that belt at this point
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