Forced Induction Custom FI Setup Questions

Turbo stopped whistling

Old 04-27-2006, 05:46 PM
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Default Turbo stopped whistling

Well i know this sounds weird but up until a few nights ago my turbo made the normal whistling sound when it started boosting. After my wastegate line came apart and my turbo boosted 15psi it no longer makes this noise i fixed the line and the turbo boosts fine with no screeching noises but it doesn't sound the same anymore. any ideas, oh and its a t25 i know its small, i've got a t3 48. 60. waiting to be installed so i'm not too concerned i just thought it was odd.
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Old 04-27-2006, 11:17 PM
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Default Re: Turbo stopped whistling

maybe you fucked your engine and it doesn't spool the turbo as well anymore
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Old 04-28-2006, 12:47 AM
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Default Re: Turbo stopped whistling

nah it boosts just fine no oil burning nothing it just doesnt whistle anymore
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Old 04-28-2006, 01:40 AM
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Default Re: Turbo stopped whistling

does that have the adjustable nut on the wastegate? if it does you might have set it lower or somthin. im wingin it here weird prob, hope you figure it out.
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Old 04-28-2006, 12:26 PM
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Default Re: Turbo stopped whistling

no its not adjustable i did however raise the boost yesterday with no affect on the whistling of the turbo. i thought that maybe the blades of the turbo had become dirty or something maybe changing the pitch but i cleaned them yesterday with no luck i'm stumped here
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Old 04-28-2006, 01:58 PM
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Default Re: Turbo stopped whistling

did you do anything with the air filter setup since the last time it made this sound?
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Old 04-28-2006, 03:36 PM
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Default Re: Turbo stopped whistling

Why not get someone to step on the gas and you listen to where the noise is coming from?
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Old 04-29-2006, 12:52 AM
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Default Re: Turbo stopped whistling

Originally Posted by baker_jeff
Why not get someone to step on the gas and you listen to where the noise is coming from?
i think thats the problem. there is no noise, the turbo lost its spooling noise. i almost thinking that it might be an air issue
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Old 04-29-2006, 01:18 AM
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Default Re: Turbo stopped whistling

if it boosts the same its fine
you might have actually fixed it :P
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Old 04-29-2006, 12:22 PM
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Default Re: Turbo stopped whistling

no cause i have a t25 and it screams when spoolin.i have mine on 13 psi and the sounds is sweet
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