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Is it possible my turbo is dieing? My car is getting slower and slower ,I have a MRC chip with...

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Old 08-21-2007, 03:50 PM
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Default Is it possible my turbo is dieing? My car is getting slower and slower ,I have a MRC chip with...

3 bar MAP.Long time ago I used G-tech for Hp/TQ and I got around 220-230 hp at the wheels,now I used the same weight and etc. and only got 178ATW.
I'm still getting 24psi of boost but the turbo is makeing this siren sound when not boosting and when boosting it sounds like a big semi truck turbo "dentis drill" according to b5 forum.There is a video on youtube that b5 S4 is making the same sound and the guy said it's b/c of a bad turbo.

Is it possible that I still get 24psi but NO power. "No boost leaks or ignition problems"
Thanks.

This is till on stock K24.
Old 08-21-2007, 04:04 PM
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Default sounds like it. Any oil loss or smoke?

might want to try a compression test while you're at it.
Old 08-21-2007, 04:59 PM
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Default No oil loss or smoke,compression is 160,160,150,160,140 car is not pulling as it used to....

it might be in my head b/c I was driving a chipped B5 S4 for a while, but g-tech shows that car is low on power too.
Old 08-21-2007, 05:16 PM
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but you're still making 24PSI......how could the turbo be bad if it boosts high?
Old 08-21-2007, 05:21 PM
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Re: could something be stuck open?
Old 08-21-2007, 06:21 PM
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Clogged cats perhaps?
Old 08-21-2007, 06:35 PM
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I have gutted cats.
Old 08-21-2007, 06:39 PM
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Default Someone told me before that you can see 24psi but there is NOT enought "air volume" or something ..

like that..
Old 08-21-2007, 10:49 PM
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forget the G-Tech? bpv?
Old 08-22-2007, 05:21 AM
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Have you inspected the turbo for any play in the shaft or damage to impellers?


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