HDi Noob

[C.A.R.]

Righto, as some of you may know I recently bought a HDi 90, which already has a Pro-Steve Stage 1 Map on it and a boost gauge fitted.

I get a really loud whooshing sound on boost coming from the turbo area, is this normal or is this a boost leak somewhere? I've never heard it before. Sounds like my car is trying to mimic a Boeing 747 on boost. Funny, but is it supposed to do that?

Also, when on boost the gauge is reading about 15psi. Is that about right or is that low?

Does feel like the engine has a lot of urgency but the speed it gathers seems a bit 'meh' compared with all the bloody noise it's making.

School me peeps!