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Thread: Dump Valves on Diesels

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    Default Dump Valves on Diesels

    What's the story with these on diesels people?

    I've had differing views on these; some people say that a performance dump valve can be fitted to the CDTi and some say not.

    Will it improve the performance?

  2. #2
    [Ex]Admin Duncan's Avatar
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    You can fit a dump valve to diesels but there isn't really much point - unless you want to look like a chav!! As Diesels have no throttle valve (Inlet direct to cylinders) you won't get the closed throttle pressure build up of a Petrol Turbo and therefore no gains/advantage. You won't even get much of an increase in the psst sound if that was something you were after.

    D

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    I'm after more Power!

    Am I sensing some hostility on the site today or is it just me, anyone?????

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    Regular Member Jamie's Avatar
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    I'm not hostile AJA!

    I'm not keen on the idea of dump valves... our cars are too sophisticated for that!! How about Anti-Lag D, could that be fitted to Diesels or Petrol Turbos????

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    What that mate?

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    Quote Originally Posted by ABYSS
    No hostility mate, i think everyone is just trying to get there opinions across .
    Must be me then. ;-)

    I get to bed early tonight to recharge my batteries.

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    Regular Member Jamie's Avatar
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    Anti-Lag - how it works! : http://www.rallycars.com/Cars/bangbang.html

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    [Ex]Admin Duncan's Avatar
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    Quote Originally Posted by AJA
    Am I sensing some hostility on the site today or is it just me, anyone?????
    No m8 - no hostility, just you! Just answering your question for you and advising you not to waste your time or money.

    Re the Anti-lag - not much use on a diesel (I believe) as diesels have no throttle valve (Inlet direct to cylinders) you won't get the closed throttle pressure build up of a Petrol Turbo and no point in a dump valve. The turbo in a diesel will have a wastgate in it (different thing to a dump valve).

    D

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    Both Tunit and Diagnostix seem to think that they have a dump valve and that it can be uprated. I think I need to do some research on this.

  10. #10
    Albaz
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    I could be wrong but I think Duncan is right here guys. It will make no difference to you diesel guys.

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