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Thread: dump valve for 1.9cdti

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    Thumbs up dump valve for 1.9cdti

    was looking for a dump valve for my vectra c 1.9cdti has any one got any ideas on wat kind of dump valve i would need

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    Regular Member UltraVec's Avatar
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    No point on a diesel man, can actually do more bad than good.
    I'm sure more people will let ya know why.

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    Dump valves sound ****ty on a disiesel.

    Had one on an old leon fr. Sounded awful.

    clatter clatter clatter fwoooooo....clatter clatter clatter.

    Sounds just like someone blowing through a digeredoo but not knowing how to use it.

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    Regular Member UltraVec's Avatar
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    If your looking for a better or more powerful sound then fit a proper induction system or cone filter, turbo will spool up a bit quicker and the sound from it will certainly turn heads on lift off!

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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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    Dump valves on a diesel would sound just like on a petrol, obviously a duff kit you had. I fitted an electrically control dump valve once and it made a very loud hiss, exactly as I have heared from petrol versions. It would need to be electrically controlled, a microswitch on the clutch would be best but it would not benifit you in terms of performance. If it were to open at the wrong time it could do damage to the turbo but the ECU should detect a boost leak and go into limp mode, so the chances of damage are tiny. In combination with an anti lag system fitted to the vacuum actuator, a dump valve on a diesel would be very effective at reducing lag when changing gear.

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    Regular Member nath-lav's Avatar
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    iv got one on my 1.9 cdti 150 along with k&n panel filter airboxmod and remap and a love it

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    Regular Member nath-lav's Avatar
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  8. #8
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