Rb25det Whistling Noise On Part To Mid Throttle

[bozodos]

The other day I noticed that my RB25DET motor started making this horribly loud whistling sort of noise, which seems to come on on just a little bit of throttle (~10hg vacuum or so), and then goes away when I floor it (at about 4-7psi it stops and goes back to normal).

I checked all the vacuum hoses I could see, and tightened up a few intercooler pipes which were loose, a mate reckons that it could either be an exhaust manifold or v bend on the exhaust leaking, due to the fact that I've got a KKR 480 turbo on it, and they are prone to this?

Has anyone else had the same problem? I tried searching but the threads it came up with weren't really applicable to my dilemma.

It dosen't seem to have gotten any worse, its more just embarassing driving around in a Skyline that sounds more like an EA Falcon!

Im hanging out until I go home next week (500km away) to get this looked at as it dosen't seem to be getting any worse or affecting how the car drives, but I thought I'd ask on here in case its something mind bogglingly simple to fix!

[zero'sR32]

hey

yeah i got one of these turbos on my r32 too..

mine did it at the start for a while too, but i knew i had a massive exhaust leak.. make sure all it is all tightend properly etc.

but mine still makes a slight whistling sound neways...