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04-10-2002, 07:19 PM | #1 |
Scooby Newbie
Member#: 13089
Join Date: Dec 2001
Location: San Jose, CA
Vehicle:2002 Impreza WRX WRB |
Blitz BOV and Blitz intake causing a weird noise..
i have a Blitz BOV and Blitz Intake in my car. When i floor the car it makes the whoosh noise which is normal because of the BOV, but since i got my intake if i don't give the car that much gas and shift gears, it would make a weird noise. some one explained to me that the noise is coming from the wesgate. It sounds like something bounces and hits somewhere(i don't know). does any one know how this works and if threre is anyway to get rid of the noise. thanx
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04-11-2002, 04:24 AM | #2 |
Scooby Newbie
Member#: 12536
Join Date: Nov 2001
Location: AUSTRALIA
Vehicle:1999 forester GT 2.0 Turbo, green |
the whoosh noise when you floor the car is not the blowoff valve,it is the intake.the 'bouncing' noise is a characteristic of some blowoff valves opening and closing.you wont hear the bov until you release the throttle,which is why you hear it when changing gears
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04-11-2002, 04:58 AM | #3 |
Scooby Newbie
Member#: 15900
Join Date: Mar 2002
Location: SoCal & NorCal
Vehicle:2002 WRX Wagon WRBP |
Indeed. Probably the intake. Blow off valve only releases to the atmosphere when the accelorator is depressed.
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04-11-2002, 08:04 PM | #4 |
Scooby Newbie
Member#: 17448
Join Date: Apr 2002
Location: NJ
Vehicle:2004 Impreza WRX STI Silver |
I think it's the Dual Drive system of the BOV. It does it if there is not enought pressure built, sometimes it does that flutter sound and a pssst at the end... by the way do you get a CEL on your intake?
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04-12-2002, 03:40 AM | #5 |
Scooby Newbie
Member#: 13089
Join Date: Dec 2001
Location: San Jose, CA
Vehicle:2002 Impreza WRX WRB |
I'm sorry, but whats a (CEL)
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04-12-2002, 03:42 AM | #6 | |
Scooby Specialist
Member#: 8403
Join Date: Jul 2001
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Quote:
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04-12-2002, 06:18 PM | #7 |
Scooby Newbie
Member#: 13089
Join Date: Dec 2001
Location: San Jose, CA
Vehicle:2002 Impreza WRX WRB |
The CEL never went on.
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04-13-2002, 06:01 PM | #8 |
Scooby Specialist
Member#: 13908
Join Date: Jan 2002
Location: Irving, TX
Vehicle:2002 WRX Sedan 296 whp |
I never got any CEL's with my bov, but will never put it back on again. The car runs so much better with the stock bov, i suggest you put it back on and find out for yourself how pointless aftermarket is. Sure i miss the sound, but will never replace the stock BOV unless necessary.
The reason it will run better with your stock BOV is that your stock bov recirculates air, and a bov just dumps it to atmosphere. Without the recirculation, the computer will make the car go rich for a second when you let off the accelerator. This will cause a stumble or a tiny backfire. |
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