upgrading injectors in ma rb20det

[jnr_chin]

if i am to upgrade my injectors to 550 other than fuel pump and if i chip my computer, what will be the other necessary things to do.

do i have to run a fuel pressure regulator??? i think i know the answer

what will my horsepower gain be like

[Coolwhip]

wow. you'll need to list alot more than injectors for anyone to guessimate your horsepower numbers, and at that once you do injectors, turbo, and tune, you should be on a dyno and really find out what you make.

What turbo?What other mods?

get ready

[jnr_chin]

well its a t3/t4 hybrid turbo, front mount intercooler, nice waste gate,

[Carl H]

horsepower gain depends on turbo size and tune...without knowing those factors we cant help you.

[DKR32]

ok im fairly new to these forums but ive been messing with nissan for a while now....i need to know if anyone has the pinouts for the ecu on a RB20DET and 25DET i want to do the swap in my 32 i have all sorts of mods on my 20 but i just dont have the torque that i want

[DriftX]

I would get Walbro 255 or equivalent pump..Adjustable regulatorNew fuel lines/filterInjectors (550's are common) and new o rings if they did not come with them.

I'm sure Carl can get you a chip you need to run those injectors.

[Cjmartz2k]

New fuel lines? Are the ones on Sylvia's WAY smaller than Skylines? I don't think they are, and if that's the case, they are MORE than big enough to run 500hp which you will never see with that turbo.

[DriftX]

No but way too many people forget that stock 240sx fuel lines are 15 years old and need to be replaced.