Attention: TDR Forum Junkies I've been working on tracking down the source of a "whistle" that seems to occur from about 6 psi to 14 psi boost then it either disappears or gets drowned out by the increasing engine noise. It's not a smooth whistle but more of a raspy whistle. If I had to pick a place it's coming from I'd say driver side front but who knows.
I had assumed it was coming from the gigantic crack in my exhaust manifold but replacing it with an ATS unit didn't solve it. Went through my intercooler boots yesterday and they all seem to be fine. I didn't pull them off and look for holes just made sure all the clamps had good purchase and were tight. I could see a hole getting rubbed into the driver side boot where it exits the intercooler since it is pretty tight down there with some sharp edges. Anyway a check of the boots didn't solve it. Haven't really inspected the intake horn... ???
I know it's hard to figure out these noises over the internet (one man's whistle is another man's whine) but any ideas would be appreciated.
I had assumed it was coming from the gigantic crack in my exhaust manifold but replacing it with an ATS unit didn't solve it. Went through my intercooler boots yesterday and they all seem to be fine. I didn't pull them off and look for holes just made sure all the clamps had good purchase and were tight. I could see a hole getting rubbed into the driver side boot where it exits the intercooler since it is pretty tight down there with some sharp edges. Anyway a check of the boots didn't solve it. Haven't really inspected the intake horn... ???
I know it's hard to figure out these noises over the internet (one man's whistle is another man's whine) but any ideas would be appreciated.
