hey guys, i did search b4 i posted, but could not find the answer. im putting a turbo kit on my f22, going to run about 6 psi. and it comes with a vortech rising rate fuel pressure riser and a 255 lph additional fuel pump. my question is using this how long could i run this with out doing some fuel tuning? i might get an afc and just tune it to -35 across the board, i heard this will get me around, but is it safe? i just dont want to run lean!!! and i heard that a/f meters are not taht accurate unless you get a wideband so i dont think im going to tune it by the butt dyno and my a/f gauge. also i will probly need bigger injectors, huh? maybe some prelude ones? thanks for the input-jesse

 

you really CAN'T tune an fmu setup as you would anything else.

if you get a vafc, do NOT run it at -35%, you will be way out of gas.
running negative numbers means you are running way too big injecotors- and stock are NOT way to big.

 

so can i drive on it just with an fmu and maybe bigger injectors? or should i ditch the fmu? i want to drive it for maybe a month or so with no tuning. would that be aite? i know these might be annoying q's but i appreciate all help!

 

anybody??

 

FMU + map bypass + stock injectors, or 1 step higher (+50 cc over stock)
-OR-
VAFC at -3x% + 440-ish injectors