Turbo Making Weirrrrdd Noises...

[rami]

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

[Lukaz]

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.

[GTR Power]

hmm..

[Bass Junky]

That or bearings are about farked.

[shnaped_second]

If it isnt affecting boost or power dramatically, it would most likely be a exhaust leak from manifold to turbo, seen it happen plenty of times...

[Race_Bred]

time for a new turbo!

[sky_hi]

time for a new turbo!

ye i think turbos start making strange noises under load when they get a bit hammered and are having issues. what turbo is it stock?

[HR31_RB20DET]

That or bearings are about farked.

My stock turbo sounded like a cop siren on boost, bearings were gone and the compressor wheel was grinding on the housing.

[barnoon]

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

[rami]

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?

[str8g]

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..

[Fry_33]

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

[Primordial]

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.

[rami]

lol.... true that! ... if only it wasnt sunday ahh well thanks guys!