Also mudflap, no need for you to guess restrictions, BW have a fantastic tool (no ghetto spec BW's included though! you need to shell out and buy a race turbocharger version) to do all the testing you need, just need to feed it with some right info from basic testing etc.
This is a fully worked over 1120bhp 13B turbo set up I have done, for you to look over
YES IT WORKS IN REALITY.
Buy yourself a turbine speed sensor and a few pressure sensors and map this stuff, its not too hard to do
Nothing worse than guessing
Here is the link >
http://www.turbodriven.com/performan...6_wrsin=92044&