hrd2bslw

Will the stock fuel lines and rails from the fuel pump to the injectors support 600 RWHP ?

Also how much RWHP will a 255lph fuel pump support ?

MEM 302 5.0L

i think the stock fuel injectors support about 300 bhp, and then with a fuel pressure regulator it wil be a little more, at least thats what a friend of mine said, the 255 lph fuel pump will support just about anything u throw at it, it would be ok with 600rwhp

Mowin8603

i think i read somewhere that the injectors are good for like 305-315, the lines will be efficient till about 320, and the rails are the same with the injectors.. i think thats right. correct me if im wrong. either way the stock fuel setup isnt really efficent past 315 whp

MEM 302 5.0L

I'd probably bet them all changed out before 300 though, just to keep everything running equally.

jthorn9

Look at my car for example it has 277 rwhp, and the damn thing nearly blew on the dyno because of a serious lack of fuel. In short, don't push your car beyond 25- rwhp with stock injectors, the fuel rails should be good to 300 rwhp, but not much more than that.

r.barn

to answer your question: No stock fuel lines will not handle that power.

the rails might come close

look under your car and see just how tiny those fuel feed lines under there are
I cant believe they will supply 350rwhp like I have much less twice that.

Aeromotive makes a nice kit with tank, pump, filters, rails, fittings ..... everything.

mpswirl

I know my friend went to the dyno with stock rails, 42lb injectors, stock lines and a 255lph fuel pump and dynoed 470 to the wheels. My car has to at least 400 to the wheels and i have the same stuff. Both are cars are turboed.

88blackgt

im over 300 w/ stock fuel rails

88blackgt

i think you are seriously underestimating the stock rails. im over 300 and my pressure isnt anything crazy either(36ish at idle, sometimes a lil higher)

r.barn

its not the rails, its the iddy bitty fuel feed line under the car.
that thing is tiny........ and he's not talking 300 or 400 rwhp, hes talking 600!!!rwhp ..... thats well over 700hp engine
no one can make belive you can feed a 725hp engine thru 5/16" feed line...........