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hey guys.. heres the scenario.. last night i was taking my car to my mates carwash (i know it was raining) driving normally... when all of a sudden after i gave it a lil squirt.. i hear my turbo whining its tits off!.. its still boosting normal.. it just makes a real high pitched screech.. everything is still running the same my turbo isnt downboosting or anything like that. what would it be?

cheers

rami

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hey guys.. heres the scenario.. last night i was taking my car to my mates carwash (i know it was raining) driving normally... when all of a sudden after i gave it a lil squirt.. i hear my turbo whining its tits off!.. its still boosting normal.. it just makes a real high pitched screech.. everything is still running the same my turbo isnt downboosting or anything like that. what would it be?

cheers

rami

Probably exhaust manifold Gasket.

I had a very similar problem recently where my turbo was making a really high pitched squeel whenever it got above 11psi, I checked the bolts holding it to the manifold and I could literally undo them with my fingers! Did them up nice and tight and now the noise has gone away completely so check your bolts and gaskets first :)

thanks for all the replies... i am running stock boost.. and once i put my foot down the noise goes n comes.. but as it is building boost it makes a bit of noise.. AND this only happens when the cars fully warmed up....

my computers been stuffed and ive had no time to take it to a mechanic.. hope its nothing major.. ;) i doubt it would be the turbo manifold with a hole.. i replaced it not long ago.. maybe the exhaust manifold?

Its probably your gasket between the turbo and the exhaust, I had the same problem. i thought it was my turbo so I went and bought a stock turbo. I found out that my old turbo was ok but the gasket was worn out and the turbo housing had cracks.. :(

I am getting a high pitched whirring noise near max boost (10psi) as well.. was thinking about posting a question about it so this saved me i guess. I guess I'll be checking the turbo - manifold gasket and maybe its worth researching a new turbo at the same time.

Does anyone have some rough prices for some of the various turbos for an R33 GTST? GT-RS, GT2530 etc?

just thought it'd save me some time. I'd be looking for something of similar size to the standard one.. the less lag the better. I may just even get a standard one I'm not looking for max power figures.

Any info greatly appreciated

Cheers

yep... i had the same problem... it turned out to be the exhaust gasket... Get it checked out. I think you've had enough suggestions on the source of the noise to at least get the exhaust gasket checked out.

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