ToyoII

I can get it to make the noise when not under load. The video is just me on my drive. It doesn't do it at a particular rpm only when I get to about -3psi up and under load it seems to get quieter as the boost goes up. I do have de-cat pipes if that makes any difference. There's no grinding noise, it's more of an air noise opposed to a metallic bearing noise. When I drive normally, i.e cruzing at 70mph on the motorway it doesn't make any noise at all, till I get to a hill and then it starts whistling as I have to press the accelerator harder and the boost level rises.

Is the pulley bearing at the front below the cam-belt/cams? The sound defiantly seems RHS turbo region because its louder if your under the car and the further back you go (towards turbo) the louder it gets.

One thing I will add is I think it has more lag since the noise started, but that may just be me being paranoid.

No smoke, a little steam when it starts up for a min or two which goes away. I've been driving it for a week and its been pretty quite and all of a sudden its really loud, video doesn't do the volume justice really. That's why I thought it could be a pipe popping off somewhere. I don't think it has uprated turbo's. It does go though, pretty chuffed with it.

It boosts just fine, no smoke, no oil leak, everything is running great . . . apart from the noise. :crying:

Ok, hopefully this will work. The pater on the sound track is rain on my coat btw

Hi, I have a problem with my new Z32 TT I've just bought a week ago, earlier today it started making a very loud whistling noise under load/in boost. It sounds like a police siren (note/pitch raising with boost and dropping when dropping out of boost). I thought it might be a boost leak but have checked everything I can get to and no problems I can see, and the noise seems to be coming from around the RHS turbo area. Any help/advice would be greatly appreciated. Thanks is advance.

Went to Japfest in my Z and saw some of you guys there, thought I'd join the forum and say Hi.

I had a misfire, but it turned out to be a coilpack.