2GTSVETTE

what are the differences and what should I use in my sc400TT @ 6-8 psi?

morris

iTrader: (2)

with just 6-8 you could probably get by with the stock fuel setup.

2GTSVETTE

I dont plan on using a piggy back..

morris

iTrader: (2)

Piggy back has ntohing to do with it, with just 7 psi the stock fuel system should be able to keep up. You might be able to use the stock injectors at 5 or 6 psi, but may need to go to 310's at 7 or 8. I couldnt say for sure you will need to check it out.

atekt

Off topic but do you have any pics of your setup?

2GTSVETTE

no pics yet, I haven't started the project.. the last part i am waiting to order is the FMU or FPR or the Rising rate FPR. I will start my project in a few weeks (around ester time).

morris

iTrader: (2)

FMU is fuel management that is what ever you are going to use to control the fuel mixture like piggyback or standalone.

rising rate is a type of FPR or every pound of boost the engnie sees the fuel pressure will go up one pound.

If you decide to go this route you will have to rework your existing fuel system. ie add new supply line remove old fpr in the tank etc.