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Thread: dump valve on 2.0t

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    Default dump valve on 2.0t

    can any one tell me how to fit a dump valve as i have been told there is one on it but it a silence kit or something! and it a sabb engine

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    Full Member Caveman_nige's Avatar
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    Vehicle : Vectra and a Signum

    Trim : top of the line in both

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    it is a saab engine and it does have a dump valve of sorts that can be heard if you use a sports airfilter.. I can hear mine just fine... I would not go fitting an aftermarket dump valve though as your engine/turbo recirculates the charged air into the turbo so that it takes less time to spool up. So if you fit a dump valve you will loose that built up pressure and more than likely give yourself some turbo lag. Extra sound but loss of performance, basically a bad idea, should bought a scooby if you want that stuff going on not a family car..

    Do the airbox mod listed on this forum and get yourself a sports air filter like a K&N, Maptun or Pipercross, that way you will amplify the turbo dump sound and help the turbo breath thereby possibly increasing the performance a little.

    A couple of guys on here have fitted dump valves though, but whats the point in having the sound if you just get burned off by a lad in a corsa who does not have the dump valve sound..
    My old Signum, the animal; she now rests in pieces in several other members cars.. https://www.vectra-c.com/forum/garag...vehicle&id=200
    The wifes vec show car, started as a standard daily driver and ended up like this. https://www.vectra-c.com/forum/garag...vehicle&id=709



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    Regular Member Marcosuk's Avatar
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    Agree with Nige... You get a decent sound if, like me, you use a cone filter.

    Try a cone first as there cheap & if thats not good enough, then get a decent DV..

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    Quote Originally Posted by Jezzy View Post



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    I think Bailey do a split dump valve so part of the charge goes to atmosphere while some is recycled back to the turbo. Might be worth looking out for!

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    Quote Originally Posted by cont1204 View Post
    I think Bailey do a split dump valve so part of the charge goes to atmosphere while some is recycled back to the turbo. Might be worth looking out for!


    have you got a link to one m8 been looking but cant find one

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    any one

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    http://www.demon-tweeks.co.uk/Produc...ign=Motorsport

    Might be that, have a look on Youtube and see if you can find any videos of what it sounds like.

    Quote Originally Posted by leedslads View Post
    Go for the K&N panel unless you have a heat shield to use.
    Last edited by cont1204; 23rd April 2011 at 00:24.

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