At what point does it become neccessary to replace the OEM fuel lines? What is their max GPM/LPH, or max horsepower? I have a single 255 in tank for now and was looking to either add a bosche 044 in-line, or upgrade to a 450lph in-tank pump since I'll be on e-85.

 

what size injectors & how much power are you looking to make?

 

Thats why I asked a general question... I'm wanting 475-500whp on e-85 with a sohc. I have a 255 with 1000cc's but I'm willing to upgrade. I've read people arguing wether or not my current set-up will run out of fuel before the elusive 500hp mark or not. Now I'm concerned that if I step up to something like a 450lph pump and 1600cc's, will my fuel lines be large enough to support the volume needed for the end hp goal? Does anyone have any solid info on the oem fuel lines? I.D. and length from pump to rail? or possibly how much the lines will flow at (X) psi?

 

Out of pure interest, what's your current setup? (engine/tranny specs)