Fuel pressure loss
Fuel pressure loss About the car, 2001 camaro ss, CAI, full exhaust without cats, makes 360rwhp. Ive just added a NOS wet kit with all the safety equipment i could buy and just installed a walbro 255lph high pressure pump with hotwire harness, and new delco fuel filter. The problem im having is it stays 62-64 psi idle, 56-58 psi WOT on motor, and on 100-150 shot it dips down to 50psi before my safety switch cuts the system, on the dyno today we even ran the car with no fuel jet and still the A/F was 13.6:1 on 125 shot making 461rwhp 509rwtq. Am i running out of pump or are the fuel lines just not large enough to handle the demand?
