rexabusa

can anyone tell me if i need to uprate fuel pressure regulator after fitting walbro to standard jap wrx.also does running rich harm engine
thanks

scooby_mania_yeah

If your gonna fit an upgraded fuel pump then you should get a remap.. To level out the amount of fuel....#
#
Ecutek 3 . Ecutek 2 . Power fc depending on your car

New_scooby_04

iTrader: (4)

Asked about this myself recently, apparently the std reg is fine with the Walbro 255l. People usually uprate the fuel pump to prevent the std one from struggling after a remap. Scoobies run rich as standard and if I understand it correctly, it's your ECU that makes the requests of the fuel pump- its not the case that just cause you fit an uprated pump, it'll flow more fuel all the time.

Ask an expert though to be sure!

Ns04

fireblade37

iTrader: (1)

I ran a walbro 255 for 16 months until i recently got round to a tek3
I did'nt have any probs.