R33 Gcg Highflow Turbo Noise

[the_r33]

hi guys i have just fitted an r33 21U GCG highflow turbo and its making a very loud whining noise, is this normal? or is my turbo on its way out?

cheers

[Ben C34]

When boosting or all the time?

[zoomzoom]

New? Second hand?

Did you replace the exhaust gaskets when you swapped the turbo?

[the_r33]

second hand not much shaft play, ive put new flange and dump pipe gasket, and noise is there constantly seems be abit quieter

when it comes on boost

[Ben C34]

Constant noise equals bad noise.

[the_r33]

its a loud whining noise when on idle, i have a bad feeling about it, could it be a noisy bearing in the turbo?

[GTScotT]

Whining siren type noises from a turbo is usually the sound of the compressor hitting the housing. I would check this ASAP.

[the_r33]

yes it is a whining siren noise coming from the front comp housing.

[KerrodR33]

My highflow was making the same noise. Should look like this if you drive for too long

[colourclassic]

^Ouch. Pull the intake off and check if there is any axial play on the compressor impeller. Or any wear on the compressor housing as above.

[Blackkers]

I'd be chasing up the guy who sold it to you

[the_r33]

im pulling it off shortly,its a member on here who sold it to me he said there was nothing wrong with it when he used it, im going to get a highflow off hypergear in the mean time, can a turbo be damaged through postage?

[the_r33]

My highflow was making the same noise. Should look like this if you drive for too long

ImageUploadedBySAU Community1396169048.227993.jpg

is it a GCG highflow ?, how loud was your whining noise?

[scotty nm35]

The housing can be machined off centre, damaged or moved in postage, or just a really poor design common to stuffing 3076 cores into stock housings. Hypergear should have been your first port of call imo.

[KerrodR33]

is it a GCG highflow ?, how loud was your whining noise?

Kando highflow with OP6 rear housing. Whining noise wasn't very loud but noticeable. Wasn't until I come onto a highway at full noise at about 6000rpm that it became a screeching noise :-| blue smoke everywhere after that as well haha.

Pulled the intake off and the shaft play is more like 'shaft free roam'.

My oil feed gasket let go and starved the bearing of oil is my guess for it's failure.

[GTScotT]

can a turbo be damaged through postage?

If it was fully assembled when posted - No.

Not unless it received such a massive shock that it PHYSICALLY damaged the compressor housing, by means of cracking it. That would be one BIG impact.

I recommend you ask the seller why he removed it and ask for PROOF. I hate to be the nay sayer but I think you will find he took it off knowing it was making a whaling noise.

[Kinkstaah]

Anyone got an example of this noise? My new turbo is making a noise also, but I wouldn't describe it as 'abnormally' loud.