Audi TT The Audi TT line, in both the coupe and roadster combines Audi's All Wheel Drive performance with the feel of a European sports car.

Noisy wastegate

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Old May 6, 2008 | 12:33 PM
  #1  
Skipponator's Avatar
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Default Noisy wastegate

Anyone have a noisy wastegate after install of a boost controller? Are there any benefits from doing different wastegates?
 
Old May 6, 2008 | 12:53 PM
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Default RE: Noisy wastegate

No benefits on a stock turbo.

And that noise probably isn't the wastegate...just lots of airflow through the compressor
 
Old May 6, 2008 | 01:55 PM
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Default RE: Noisy wastegate

cant hear an internal wastegate
 
Old May 6, 2008 | 02:59 PM
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Default RE: Noisy wastegate

What does an external wastegate sound like?
Nevermind
 
Old May 6, 2008 | 07:50 PM
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Default RE: Noisy wastegate

ive asked the same question since forge sells a replacement wastegate never heard of a benefit tho
 
Old May 7, 2008 | 12:25 AM
  #6  
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Default RE: Noisy wastegate

My local Euro shop said it was the wastegate opening and closing. It only happens at partial boost, like 5psi-12psi. It's like a metallic *****? I dunno how to describe it.
 
Old May 7, 2008 | 02:37 AM
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Default RE: Noisy wastegate

I don't think there's any way you could hear that tiiiiiiny wastegate opening/closing over the exhaust.

My guess would be it's your DV opening/closing since the ECU uses it to control partial boost.
 
Old May 7, 2008 | 10:36 AM
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Default RE: Noisy wastegate

ORIGINAL: MeanAudiA6

ive asked the same question since forge sells a replacement wastegate never heard of a benefit tho
It has a higher psi spring and will build and hold boost better. not worth it on a 180 but should be a decent improvement on a 225. However for the price, i would just get a greddy ebc and get the same if not better results, not to mention transferable to a new turbo set up
 
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