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Thread: Dump Valve??

  
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    *Ryan*z20leh*'s Avatar
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    Dump Valve??

    when im not booting my car my car dumps as usual but when im thrashing the car it makes a high pitch dump? any ideas of this problem ? its really annoying me now as people look at me stupid lol
    Astra Sri Turbo Flame Red, 298BHP & 365 ft/lb
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    flatfreeman's Avatar
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    Hmm strange one that, what dump valve are you running?
    Disastra Coupe Turbo - Chianti Red
    Kept running by LMDevelopments

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    flatfreeman's Avatar
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    2nd thoughts, have you blocked off the OEM valve? If you havent, could be the OEM valve your hearing during normal usuage, but when the cars trying to dump alot of boost through the dump valve the spring is too strong and its only giving a tiny gap for the air to escape hence giving a high pitched sound. Just a thought!
    Disastra Coupe Turbo - Chianti Red
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    palmer's Avatar
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    my baileys used to sound different too.

    its just different boost levels making different pitches.
    EDS Stage 2 SRI-T 263bhp - 290ftlb torque
    A clean car is a happy car!

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