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HELP! car making funny noise

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  • HELP! car making funny noise

    car is stage 2 and started making funny noise when change gear? like a whining clutter sound. and also loss of power. not boosting enough. dropping to 14psi? could this be circulation valve in turbo?

  • #2
    Is it like a whining noice when you are driving or when you rev the engine to 2200rpm and it drops

    Could maybe be wastgate chatter

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    • #3
      Originally posted by andriano View Post
      Is it like a whining noice when you are driving or when you rev the engine to 2200rpm and it drops

      Could maybe be wastgate chatter
      no it is fine when driving. its only when changing gear. like a whining chatter?

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      • #4
        I say if you only hear it when chaning gear it is most likley the wastegate, as you are running stage 2 and more boost that the wastegate has to deal with

        But the whining still does not sound right though

        But get it check out mate
        Last edited by andriano; 13 November 2009, 10:00 AM.

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        • #5
          Originally posted by andriano View Post
          I say if you only hear it when chaning gear it is most likley the wastegate, as you are running stage 2 and more boost that the wastegate has to deal with

          But the whining still does not sound right though

          But get it check out mate
          changed the actuator to a collins one.

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          • #6
            You won't hear the wastegate chatter, you have probably blown one of the pipes off at the rear of the engine, if the noise sounds like a pigeon/turkey then it's the recirc valve not opening and the turbo stalling on the air that has already been compressed and has nowhere to go other than back through the turbo as the throttle butterfly is shut, search turbo stall or s2 quattro on YouTube and see if the sound you have is similar

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            • #7
              Originally posted by MikeyG View Post
              You won't hear the wastegate chatter, you have probably blown one of the pipes off at the rear of the engine, if the noise sounds like a pigeon/turkey then it's the recirc valve not opening and the turbo stalling on the air that has already been compressed and has nowhere to go other than back through the turbo as the throttle butterfly is shut, search turbo stall or s2 quattro on YouTube and see if the sound you have is similar
              ok thanks mate.

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              • #8
                Originally posted by MikeyG View Post
                You won't hear the wastegate chatter, you have probably blown one of the pipes off at the rear of the engine, if the noise sounds like a pigeon/turkey then it's the recirc valve not opening and the turbo stalling on the air that has already been compressed and has nowhere to go other than back through the turbo as the throttle butterfly is shut, search turbo stall or s2 quattro on YouTube and see if the sound you have is similar
                ordered a forge recirc valve. really hope this cures it.

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