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Thread: Echo type noise when changing gear

  1. #1
    hubbs's Avatar
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    Echo type noise when changing gear

    Hope someone can help.

    When I change gear there is a noise which sounds like an echo down a large pipe, I think its something to do with the pressure release in the induction system.

    I have a bailey dump valve, oe dump valve bypassed with the spacer, courtenay filter, deresticted airbox, regal powerpipe and larger cold air feed.

    Following other threads in this forum I will be removing the spacer from the oe dump valve and removing the bailey dump valve.

    Any ideas.


  2. #2
    MikeWarner's Avatar
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    Re-activate your OE dump valve. The bailey can't react quick enough to dump all the pressure so you are getting turbo stall which can trash your turbo very quickly.
    8 Astras in a row! Can Anyone Beat That?
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