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Forced Induction Superchargers | Turbochargers | Intercoolers

Installed procharger and no boost

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Old Oct 13, 2006 | 07:16 PM
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Default Installed procharger and no boost
Hooked up gauge have vac but no boost.Can someone give some input please.
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Old Oct 13, 2006 | 07:22 PM
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Are you driving the car or just giving it gas in the driveway. The latter will not produce boost.
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Old Oct 13, 2006 | 07:28 PM
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I am driving the car
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Old Oct 13, 2006 | 08:03 PM
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What rpm are you getting up to? Is your belt tight? Are you sure your not leaking boost anywhere? Did you forget to take the plastic bag off the air filter ( I did this one what an idiot)?
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Old Oct 13, 2006 | 08:12 PM
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Im going up to 6000.No boost.Car seems to scream.What vac source should i run the gauge from.
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Old Oct 13, 2006 | 08:16 PM
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I hope your not running the car to 6k without it being tuned. That wouldn't be too bright. What vac source is the boost gauge using now?
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Old Oct 13, 2006 | 08:21 PM
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I had bob @ epp tune it.Im taking it from pass side by computer .
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Old Oct 13, 2006 | 08:27 PM
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pass side by the computer? what the little 3/16 or whatever size line it is coming off the back of the intake for the ac controls? if so, did you splice infront of the inline check valve or behind? behind wont yeild boost due to the checkvalve.
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Old Oct 13, 2006 | 08:38 PM
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Where else should i take it from.
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Old Oct 13, 2006 | 08:46 PM
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you didn't answer the question. but you could also use the brake booster line
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Old Oct 13, 2006 | 08:47 PM
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After the valve.
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Old Oct 13, 2006 | 08:51 PM
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Tap into the vac hose going to the brake master cylinder...That's the easiest place to do it...Also is the bov staying open???
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Old Oct 13, 2006 | 08:52 PM
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Dont know .
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Old Oct 13, 2006 | 11:24 PM
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Originally Posted by SKI
After the valve.
There is your problem right there. You need to move your splice spot to before that checkvalve. Otherwise, the gauge won't be able to reference boost, hence why you aren't seeing any.
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Old Oct 14, 2006 | 06:13 AM
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Let us know if that takes care of the problem. Bob
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Old Oct 14, 2006 | 07:23 PM
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That was the problem thanks.
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Old Oct 14, 2006 | 09:08 PM
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Glad to help.....now post a vid.
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Old Nov 2, 2006 | 07:05 PM
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Originally Posted by SKI
After the valve.
Are you talking about a one way valve or something, that stops boost from getting into the booster??

Is there really any need for a boost gauge? just curious?
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Old Nov 2, 2006 | 09:12 PM
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he's talking about the HVAC check valve. if the valve is bad or missing your heater blend doors will move(floor to defrost) as vacuum changes
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Old Nov 2, 2006 | 09:21 PM
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Originally Posted by 1BADAIR
he's talking about the HVAC check valve. if the valve is bad or missing your heater blend doors will move(floor to defrost) as vacuum changes
Thanks Badair, Gees there are a few things to be aware of when going to a blown set up, arent there..
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