Question #1 how much power do you want to make. That determines the rest of teh answers.

Piping - Turbo cars don't have the air momentum of the supercharger cars, so to get around it they create their own velocity multiplier (down step). From the turbo to the intercooler use as big as you can fit in the car. Leaving the intercooler if you are under 20 psi use 2.5 inch tubing, over use 3.0. I would use aluminum just because its easy to fab. I will post pics tomorrow of the work we did and I can tell you have to fab nice stuff.

Fuel - Fuel is loke pussy, you can never have to much of it on hand - just use what you need. Easy calculation (horsepower * .1 = injector size @ 70% duty cycle) So if you are making 500 use 50's etc.. As for pump the externals are nice but they get hot, you can use a Barry Grant 6 volt step down or a weldon Dial-a-pump to lower the voltage to keep it cool on the street. I have a Weldon 2345 and it gets hot fast.

How much fuel do I need? You are making boost so you will up you pressure to battle the air in the engine. More pressure means less volume (always remember that). Some pumps get cut in half from 40 to 60 psi. Another calculation. ((injector size * .80 * cylinders) / 6.44 = gallons you need per hour. Multiply by 4.546 to find liters. Now find a pump that will do that @ 40 + your max boost.

(I.E. ((50 lb inj.) *.80 * 8 ) 6.44 = 46.6 gph or 211 lph. A 255 lph pump is 255 @ 35 psi. I bet its 140 @ 65.

Some calculaters show some different numbers, but mine are close.