Karl,

The BB thing is not quite as exciting as some would have you believe. I ran the GT28RS for a while, it's a REALLY nice turbo. It will do the high end of 200bhp and be lively. But lets not be unrealistic here, it won't be super responsive, just a little better than a T34 0.48, but not much.

Jai - I presume you start making boost at 2800? When do you have full boost?