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Dump Valves

Discussion in 'A3/S3 Forum (8L Chassis)' started by Grant, Dec 4, 2003.

  1. Grant
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    Grant Well-Known Member VCDS Map User

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    [Dec 4, 2003]
    I am new to turbo cars - infact my S3 is the first!

    Is it worth fitting a dump valve? If so what are the benefits of such a product and which manufacturer would you recommmend, i.e. AmD, Bailey, Forge?
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  3. Grant
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    Grant Well-Known Member VCDS Map User

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    [Dec 4, 2003]
    Thanks for the link Gambba - I knew there had to be discussions on DVs before!
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  4. Grant
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    Grant Well-Known Member VCDS Map User

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    [Dec 5, 2003]
    Am I right in saying that there is no "whoosh" sound on gear changes with an AmD Viper DV?
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  5. Drill
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    Drill Member

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    [Dec 5, 2003]
    Well, there's a nice Pssshhhtt, sound /ubbthreads/images/graemlins/grin.gif

    And C'mon Daniel, tell us how it sounds with the new Intake /ubbthreads/images/graemlins/grin.gif

    /ubbthreads/images/graemlins/lol.gif /ubbthreads/images/graemlins/beerchug.gif
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  6. Grant
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    Grant Well-Known Member VCDS Map User

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    [Dec 8, 2003]
    [ QUOTE ]
    Drill said:
    Well, there's a nice Pssshhhtt, sound /ubbthreads/images/graemlins/grin.gif

    [/ QUOTE ]
    I was speaking to someone at AmD and they said that there is no noise with the Viper DV.

    Is this true? I thought all DV made that wonderful noise whilst changing gears? /ubbthreads/images/graemlins/confused.gif
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  7. PaulRS3
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    PaulRS3 Well-Known Member

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    [Dec 8, 2003]
    not really any louder than OEM bosch.

    its because Audi use a closed loop system and "divert" (hence diverter valve) the air back into the intake system.

    personally i dont like the woosh-tish noise of vent to atmosphere dump valves. I think its cheap and tacky.
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