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Thread: Keeping the actuator noise rather than dumpvalve

  
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    DYL 4N's Avatar
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    Keeping the actuator noise rather than dumpvalve

    As title really, how do i keep the actuator noise rather than the dumpvalve noise. I have recentlly fitted the vxr turbo but for some reason the dump valve didn't work straight away and i had that lovelly noise of the actuator. how can i keep this safelly??

    Any help will be much appreciated.
    Thanx Dylan

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    Rob R's Avatar
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    you can't. it's not the actuator making a noise, it's the noise of air slapping against the turbo blades as it's got nowhere to go

    bearing in mind how weak gm turbo's are anyway this is not ideal and is asking for turbo failure.
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    As above. The best way if you really want that noise. Is get an old T3 turbo of a cosworth.

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    It's not like it now, it just made the noise for the first few times i backed off the thottle, my standard dump valve is working now.

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    The only real way, would be to either:-

    1. Get a stronger turbo, that could cope with air passing back through the blades (Garrett t34 on my cossie did this for years, without letting go).

    2. Keep replacing the vx turbo when it does die.

    Otherwise, nope cant have the chatter (would prefer it myself as well).

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    Since taking my DV26 off my turbo makes this chattering noise when i lift off the throttle. Does this mean mine is set up wrong then and i maybe to to back the actuator off slightly?

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    Quote Originally Posted by 52Minty View Post
    Since taking my DV26 off my turbo makes this chattering noise when i lift off the throttle. Does this mean mine is set up wrong then and i maybe to to back the actuator off slightly?
    Probably got a spacer fitted in the OE valve, or a one way valve in the vacuum pipe.

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    No spacer fitted mate. There was when the DV was on but i bought an OE spring for the turbo off a guy on here which i fitted when the DV came off.

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    lee gsi's Avatar
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    What airbox do you have?

    If you have the 1.9 or 2.2 set up you will hear it more.
    The truth is always the truth even if you haven't realised it yet...

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    Standard air box and filter but with a veccy intake pipe. I have a non standard full exhaust system though. Would that make a difference?

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