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Thread: dump valve on a vectra cdti 150

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    Default dump valve on a vectra cdti 150

    hi all

    i was wondering if anyone had an idea on how to install a dump valve (BOV) to the diesel vectra??

    thanks

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    any one help please

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    Regular Member nutron's Avatar
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    Vehicle : Vauxhall

    Trim : very

    Engine : Z19DTH

    Year : Nosey

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    You can but why do you want to? If it is for the noise, just fit a T-piece in any of the pressure pipes and use a microswitch on the clutch, a feed from the vacuum pump and a normally closes solenoid to open it. Or you could just get a big normally close solenoid and use that as the dump valve. I did that and with a trumpet on it, it worked a treat noise wise. If you are after a performance gain, it won't do anything I'm afraid. There is a way to make an anti-lag system, that will keep the turbo spooled when you change gear for much better performance but... It's my secret weapon for Santa Pod at the moment, so I'm not telling :P

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    oh come on you can private me if you want and keep it hush hush lol

    but in any case i dont want it to look crap i want the real thing
    http://www.racespecperformance.com/e...ump%20Valve%22
    something like that or better

    if you can help with some pictures or something ill give you my email if you want to keep it quiet

    please

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    Regular Member nutron's Avatar
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    Vehicle : Vauxhall

    Trim : very

    Engine : Z19DTH

    Year : Nosey

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    So you want people to see it when you lift the bonnet?

    Make up a custom pipe for the rubber hose onto the inlet manifold and fit the dump valve there. There are a few ways you could set up the dump mechanisum but you will have to use an electrical trigger such as a microswitch on the clutch.

    The amount of pressure you are running, you would probably need pressure on the back side of the dump valve to keep it fully closed normally. It might be enough to jut vent the control chamber to atmosphere to opperate the valve but if it has a heavy spring, you might need two solenoids to switch between pressure and vacuum.

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    Regular Member Mr Hyde's Avatar
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    I've heard through many a source that fitting a dump valve to a derv will decrease performance. Not only that, but a dv on a derv? Why? Surely you'd make yourself a laughing stock?

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    Regular Member nutron's Avatar
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    Vehicle : Vauxhall

    Trim : very

    Engine : Z19DTH

    Year : Nosey

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    Would a massive intercooler and hybrid turbo on a derv make me a laughing stock? Some still laugh when you say you own a diesel but with a 0-60 time of about 6.5 seconds, they don't usually laugh at me for long.

    If he likes the noise, then that's what's important
    Plus, with an electrically operated unit, you can add an on/off switch

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    Regular Member bangty 1's Avatar
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    i had one on my astra van i loved it people allways sed whats under there made them think when my van would sound like a tank then ****sshhhh would allways make heads turn and even had people asking where do i get one.....loved it but van had to go for my signum.....signums next lol

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    thankyou nutron

    that is all i want at the momen is to have the noise and if people dont believe that its real i can open the bonnet and have a nice shiny BOV sitting in there

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    Regular Member ONEMINUTESILENCE's Avatar
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    Quote Originally Posted by webtrawler View Post
    thankyou nutron

    that is all i want at the momen is to have the noise and if people dont believe that its real i can open the bonnet and have a nice shiny BOV sitting in there
    Would be interesting to hear what one would sound like

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