Ok
well this noise has been there since the day I picked up my car which should be going into its 3rd month now and the car was bought of a former forum member who told me everything about the car so I was happy with it and still am.
BUT
I have heard skylines go flying past me at full WOOT and the noise my turbo makes is no where near to what theirs makes.
I get a really scratchy, whiney supercharger kinda noise and I don't think im losing any boost coz my boost gauge (after market Apexi gauge) on full throttle is reading just over 0.5bar which I take it is around 8psi.
The only mods are a pod filter and cat back exhaust.
The noise only starts when it's past 4500 or when the second stage boost kicks in and boosts to 7-8psi.
Now I also have searched through the forums and have read to check for leaks in cooler and intake piping. But also read some where the could be leaking gasket.
If it's the gasket would the exhaust note sound a shit load louder also? Car sounds normal for a RB25DET with 3" from the cat.
Any ideas?
Would shaft play cause a noise like this? Im not getting ticking, clunking, rubbing noises just a really high pitch scratchy supercharger kinda noise.
Your help will be greatly appreciated
Thanks
Ash