what psi can the 550cc or 560cc injectors handel? I whanted to put the 550cc or the 560cc injectors from an evo to my car(97-gst). I want to boost 18psi! I have a fuel pump, f/p/r, and an safc also a 50trim turbo from slowboy racimg.

 

They will handel 18 psi no prob, the stock fuel system cuts out at 16 psi. Idk what they are good up to though.

 

Mine are fuel causing Fuel cut at 21 PSI I am on stock EVO pump so that may be ther reason why I am cutting but 21-23 im sure is max as long as you tune the car

 

oh and I forgot to mention I am leaning the car out with the SAFC. I am running it at -19% correction at 7000 RPMs and -4% at at start of boost.

stock AFR with stock fuel is 9.8 so I leaned it out to 11.3 on stock fuel before leaning it out I was fuel cutting at 18 PSI