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Thread: High pitched noise when on high boost

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    High pitched noise when on high boost

    Hi guys, ive noticed i get a noise thats quite high pitched when going above 10-12psi boost and stays all the way up to 18psi. it also seems to be getting worse any ideas got a feeling it might be the turbo car has done 112k

    http://www.audi-sport.net/vb/a3-s3-forum-8l-chassis/187166-tims-max-power-a3.html


    Quote Originally Posted by 16Klappe View Post
    Don't listen to him Tim, You're my hero, I'm proud of you.

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    failing turbo is a probable cause but ive seen on more than one a boost leak is the issue..
    Paradox1 likes this.

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    is there anyway to test the turbo? will have a look for leaks, how much would a new turbo be roughly?

    http://www.audi-sport.net/vb/a3-s3-forum-8l-chassis/187166-tims-max-power-a3.html


    Quote Originally Posted by 16Klappe View Post
    Don't listen to him Tim, You're my hero, I'm proud of you.

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    Pressure test first of all, and make sure you test it above 12psi!

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    Quote Originally Posted by beachbuggy View Post
    failing turbo is a probable cause but ive seen on more than one a boost leak is the issue..
    X2 most likely boost leak
    Word!!!

    My A3/Martys Golf would smash that, and this guys £7000 GT9743 supercharged love machine.

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    ok, didn't have a chance to look for a leak and then the dv hose popped of the ic pipping 3rd time its happened now because the nipple on the pipe hasn't got the lip? anyway i can make one? also the turbo is still making the noise its like a whining when it spools not the normal spooling noise so my question how difficult is it to rebuild the turbo? and for that matter taking the turbo off?

    http://www.audi-sport.net/vb/a3-s3-forum-8l-chassis/187166-tims-max-power-a3.html


    Quote Originally Posted by 16Klappe View Post
    Don't listen to him Tim, You're my hero, I'm proud of you.

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    guessing its an s3? if so looking at 4 hours to remove the turbo first time mate, done from above and through the drivers wheel arch with the driveshaft out the way, one of my posts tells exactly how i done it. new turbo is around 600 quid, best off sourcing a reconditioned one but make sure its a genuine ko4 donning the blue tag as theres alot of chinese copys out there that arnt as good quality like mine! assuming it is actually your turbo off course.
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