sorry if you have already answered this mark-but what turbo are you using?? will it be ready for mcr5?? and do you plan to intercool it?? i did a similar set up using wrecking yard parts to produce 15 psi@ 2300 rpm...it was saweet. 300 hp ford focus 
but it payed the bills.
i used a eclipse gsx turbo, and a volvo wagon intercooler 
good luck buddy
It is a 300ZX turbo from about an 87-89. If I get 15 psi I would be happy, but 20 psi would be better. I am going to see what it does without a cooler first before I go through all the trouble to install one.
