vacuum for zlet dump valve
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Thread: vacuum for zlet dump valve

  1. #1
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    vacuum for zlet dump valve

    im thinking about fitting a dump valve on my zlet, in my zaffy gsi, where is the best place to T in for the vacuum pipe, thanks Ads

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  3. #2
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    Re: vacuum for zlet dump valve

    Anywhere after the throttle body on the intake manifold.
    1997 Corsa Lite 2l16v TS Standard 1/4 mile 13.285s @ 167.7 km/h
    2007 Nissan 1400 Champ 20LET (Conversion in Progress )

  4. #3
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    Re: vacuum for zlet dump valve

    if you get a dv your get instructions where to put it anyways if you not 100% sure.

  5. #4
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    Re: vacuum for zlet dump valve

    most people join the T into the fuel pressure regulator pipe.
    1997 Corsa Lite 2l16v TS Standard 1/4 mile 13.285s @ 167.7 km/h
    2007 Nissan 1400 Champ 20LET (Conversion in Progress )

  6. #5
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    Corsa SRI Z20LEH, B X14XE

    Re: vacuum for zlet dump valve

    Using a dumpvalve BOV on zlet/leh you MUST T off from the fuel pressure reg, the other vacuums are solenoid controled.

    Dont link it to the standard recirc valve as the ECU opens this to control boost in lower gears. Which would cause the BOV to suck in un-metered air

    Also, make sure its twin piston valve!
    LOVE VAUXHALLS, HATE THEIR GEARBOXES!!!!

  7. #6
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    Re: vacuum for zlet dump valve

    You have a dv as standard on the zaffy gsi mines a 2005 and it has one !!

  8. #7
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    Re: vacuum for zlet dump valve

    the DV is a recirc valve>> i think he means a BOV
    LOVE VAUXHALLS, HATE THEIR GEARBOXES!!!!

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