philly3384

when u upgrade ur fuel pump from stock to like 190 or 255lph will the car automitcally run rich or does ur fuel pressure regulator even everything out?

vfast

well first don't put in a 255 in a mild car..the 190lph is about the biggest I would go there has been time when the 255 has made cars really rich.... using the 190 and setting your psi around 38 it will run fine and the larger pump will fix the lean out of the weak 88 lph stock pump

philly3384

i got the car but i dont know if the guy put a bigger pump in or not .. this is the 95 cobra so it has 24 pound injectors.. there is not fuel pressure regulator so do u think he probably didnt upgrade the fuel pump? If he didnt want lph is a stock cobra fuel pump

roundman

there has to be a fuel pressure regulator on the passenger side fuel rail in order for the engine to run right.

philly3384

i meant an adjustable fuel pressure regulator of couse it has the stock on or that owuld be bad lol

vfast

I run kirban regulaters and the cheap accel..niether has had any problem

stanglx2002

im running a Kirban too

Tims 88GT

i run an aeromotive