dump valve flutter

  1. L-plater Joined: Jul 2011 ryde,isle of wight Posts: 63 saxo vts turbo
    #1
    why does my dump valve flutter when it didnt.the car i got it off of it just dumped and now its on my car it flutters.can any one help
  2. Saxperience Forum Bum Joined: May 2007 Posts: 4857
    #2
    Post a photo of it so we can see what you have there.
  3. Saxperience Post Whore Joined: Feb 2006 dudley United Kingdom (England) Posts: 6790 106 gti/ SEAT LCR
    #3
    Quote:
    Originally Posted by karenv View Post
    why does my dump valve flutter when it didnt.the car i got it off of it just dumped and now its on my car it flutters.can any one help
    That will most likely be turbo stall, the car you got the dump valve off was probably running more boost and was able to open the dump valve to dump. I'm guessing your not running a lot of boost so there's not enough pressure to open the dump valve so instead the air just backs up into the turbo
  4. Established Member Joined: Aug 2010 durham Posts: 1160 Jetta sport TDI. Saxo vts
    #4
    as above....
  5. L-plater Joined: Jul 2011 ryde,isle of wight Posts: 63 saxo vts turbo
    #5
    its a t25 im using off of a rover i think it was here are some pics of what i got im running 10 psi




  6. Established Member Joined: Jun 2009 west mids (dudley) Posts: 1201 cammed 106 flatty
    #6
    hi mate,

    ive noticed your using the same manifold as me.

    if your using the studs and nuts provided be warned they are shit.

    mine kept coming undone. im now resulting in it being stripped down again just to replace gaskets which blew, and 4 studs and locking nuts. big job for such a little replacement.

    just keep an eye on them, as if they do come lose you will blow the gasket.
  7. L-plater Joined: Jul 2011 ryde,isle of wight Posts: 63 saxo vts turbo
    #7
    yea im using the studs and nuts provided thanks for the heads up