hey guys,
ive got a 96 r33 gtst and got a new clutch 3 weeks ago. when i got the car back after the clutch install i straight away noticed a hissing sound coming from the engine bay, specifically from the passenger side. i went back to the mechanic, they had a look and said its just the clutch parts settling and it should stop hissing soon once the clutch settles in. its been 3 weeks now and its still there. ive noticed that its always hissing, whether on idle or not, and the sound corresponds to the revs, so if i rev the sound gets louder with the revs. i took it back to the mechanic and this time i was told it cant be the clutch, and it could be the turbo (something about parts in the turbo touching eachother as it spins, sorry i forgot what he said exactly). has anyone ever experienced this before? or know what it could be? it almost sounds like an air leak...