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whoosh sound from turbo? 900 91

posted by  someone claiming to be ALEX PIEPER on  Wed May 16 08:41 CST 2001 [RELATED]

I have a '91 940 SE that i have made some changes to, big exhaust, turbo timer, boost gauge, K&N filter. I also cut the bottom of the air box off to get alot more air into the engine. My question is, when I back off the gas I hear a loud swoosh of air (I think) from the engine compartment. It is a bit like having Darth Vader breathing into a Mr. Microphone. Sure it sounds cool but what is it and is it bad?? Does my car have a factory "blow off valve" if I do, is this sound from that??





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New whoosh sound from turbo? [900][91]
posted by  someone claiming to be ALEX PIEPER  on Wed May 16 08:41 CST 2001 >


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