Rb20 Boost Leak?

[tp1gts2]

hey guys, so my 32gtst has a squeeling noise when on boost, ive never heard a boost leak before and would like to know what you guys think?

it has a hks gtrs, plasmaman inlet plenum, power fc etc..

www.youtube.com/watch?v=0DlWQGKmorE&feature=player_profilepage

it you guys could help it would be amazing and yes i have looked, had the plenum off twice, checked all the intercooler pipes, i just cant find anything

cheers

Edited August 30, 2011 by tp1gts2

[DVS JEZ]

Chances are its the turbo to manifold gasket. Didnt watch the video but

[GTSBoy]

Recent threads like this have all leant towards an exhaust leak. Usually manifold-turbo gasket, but also possibly the head-manifold gasket. Especially if you have broken exhaust studs (which it is almost impossible to imagine an RB20 not having any of).

[Hanaldo]

Awesome video just by the way

I would also say exhaust leak somewhere.

[DVS JEZ]

Recent threads like this have all leant towards an exhaust leak. Usually manifold-turbo gasket, but also possibly the head-manifold gasket. Especially if you have broken exhaust studs (which it is almost impossible to imagine an RB20 not having any of).

Even if the manifold studs are broken i try to avoid fixing them till they leak. Its amazing how long the gasket will last.

[tp1gts2]

Will it really squeel like that? Every exhaust leak I've heard has a fluffy noise at idle? This is silent, at idle, also has been making this noise for a year or so, but I have never got around to fixing it. Thanks for the help guys

[GTSBoy]

The ones that carry on only squeal once you get some exhaust pressure behind the leak and then it opens up and rushes out. Quiet enough at idle that you can't find them.