I have a couple questions too all the powerdyne users, hopefully you can help. First of all i have a 95 formula m6 spec stage 3 4:10 lt4 hot cam kit,lt4km,madz tune, pacesetter long tubes 3inch y pipe not cats,borla cat back, i picked up a 6psi powerdyne charger pretty cheap and i was wondering if i install a racetronixs fuel pump will i still have to use the fmu? also will i need to get my ecm retuned before i run it?

 

with 6psi the racetronix pump should be fine....but you will need a retune and I would lalso ook into a set of bigger injectors

 

if i were you id run the FMU..only way i would think you should even consider not running it is if you have a good tune FOR the SC.. even though you have the badass pump with the stock regulator its not gonna do you any good for Pressure at the Injectors

 

yeah i will try it any idea what kinda presuure i should have?

 

the stock FMU increases your pressure 8psi for every 1lb of boost