1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Blow Off Valve

Discussion in 'A3/S3/Sportback (8P Chassis)' started by GlasgowRangers, Oct 6, 2008.

  1. GlasgowRangers

    GlasgowRangers GlasgowRangersFC

    Joined:
    Jan 5, 2008
    Messages:
    498
    Likes Received:
    1
    Can somebody please explain to me what the hell a blow off valve is and what the benefits are of having one? PLEASE...
     
  2. Google AdSense Guest Advertisement



    to hide this advert.
  3. PW-Motorsport

    PW-Motorsport Member

    Joined:
    Jun 13, 2006
    Messages:
    396
    Likes Received:
    0
    A Diverter valve is fitted to the current VW/Audi turbo engines.
    When you close the throttle the boost is returned to the vacuum side of the turbo, keeping it spinning.

    A blow off valve or dump valve will vent this boost to atmosphere, creating a whoosh noise on gear change. These do not work very well on the current VW/Audi turbo engines
     
  4. golf

    golf ***** rent boy
    VCDS Map User

    Joined:
    Jan 17, 2007
    Messages:
    1,556
    Likes Received:
    2
    Are they blocking Google in Turkey now? :moa:
     

Share This Page