I picked up a pair of T4's and would like to install them on my 87 trans am. I have the plumbing all figured out, but acouple quick questions..what size injector should i go with and what size fuel pump? I realize that the T4's are alittle big and won't spool till about 3000rpm. I will run a MSD boost timing retard and 110 octane race gas all the time. I'm only going with 6psi of boost and an intercooler. The car is a TPI 350 with several mods already.

Thanks in advance.

 

whats the a/r on the hot and cold sides of the turbo? 6psi isnt very much for two decent sized t4's. do you plan on building up a motor in the future? you could probably run 10psi w/ an intercooler and 92 octane pump gas w/ the timing retard.

hell, last year i had an '01 toyota mr2 spyder that w/ a t3/t4 ran 10psi on stock cast pistons w/ 10:1 compression everyday for 40k miles till the car got hit and totaled.

youll be fine on pump gas and a good tune.

also if you dont plan on building the motor id suggest two smaller turbos..even turbocoupe t3's if your not going to run alot of boost...that was youll have good boost response down low.