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What is this Whining Sound coming from Turbo Area. Can’t rev Past 3K RPM

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Old Jul 25, 2021 | 08:53 PM
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What is this Whining Sound coming from Turbo Area. Can’t rev Past 3K RPM

Got my Car Running again, but this Loud Whining Sound is coming from the Exhaust Manifold Area. I can’t seem to Rev past 3500 RPM.

Compression in Both Chambers are Even.

No Oil Leaks, Good Oil Pressure. Blown Turbo???
Here is the Vid…


Last edited by RPOdesign; Jul 25, 2021 at 08:55 PM.
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Old Jul 25, 2021 | 10:04 PM
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Thats a cute sound lol

Its an air escaping sound. From where...... no idea. Take the intakes and y pipe off and rev it. It may be easier to see the sound........ yes, see the sound
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Old Jul 26, 2021 | 01:37 AM
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Originally Posted by cr-rex
Thats a cute sound lol

Its an air escaping sound. From where...... no idea. Take the intakes and y pipe off and rev it. It may be easier to see the sound........ yes, see the sound
Yeah It sounds like a Horse Neighing lol…maybe it could be the Wastegate?
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Old Jul 26, 2021 | 10:05 AM
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It's just like if you made that noise with your mouth - a pinched hose or something that air is trying to go through and it's acting like a whistle/kazoo or something.

I don't think that problem would be related to not being able to rev. Do you have the engine warmed up when you are trying to rev it up? The car won't go to high RPM stock due to the secondary throttle plates staying closed until the car warms up a bit.

You're going to have to do some exploring to find that noise, that's something that was installed improperly.

Dale
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Old Jul 26, 2021 | 01:46 PM
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My Rotary Sounds like a Horse Now

It Seriously Sounds like a Horse Now…WTF Lmaoooo just hope it’s not the Turbo Seals…

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Old Jul 26, 2021 | 01:56 PM
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get those intakes off and go from there
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Old Jul 26, 2021 | 03:23 PM
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The only noise a bad turbo can make is very high pitched screech when it's under boost - that's the turbo wheels hitting the housing. That's it.

You have a pinched hose or bad gasket somewhere. May also unplug the air pump and see if it shuts up - if so it's something in the air pump's air system. If not you can rule that system out.

Dale
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Old Aug 8, 2021 | 11:18 PM
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Originally Posted by DaleClark
The only noise a bad turbo can make is very high pitched screech when it's under boost - that's the turbo wheels hitting the housing. That's it.

You have a pinched hose or bad gasket somewhere. May also unplug the air pump and see if it shuts up - if so it's something in the air pump's air system. If not you can rule that system out.

Dale
I put it in storage for a year and found out a rodent made a nest in the turbo piping. I’m sure it got sucked in and messed up the seals. My car is also smoking and The only area I’m leaking oil is from the Primary Turbo.

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Old Aug 8, 2021 | 11:20 PM
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Leaking Oil


Yup it’s the Turbo Seals!
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Old Aug 8, 2021 | 11:57 PM
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Your secondary drain has a distinct oily look, undoubtedly the source there.

I'm reminded of a certain practical joke with the noise - hopefully no bastard friends involved!
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