when should u upgrade fuel rails?

 

does anyone know what the horse power limit on the stock fuel rails are or when to upgrade or do people do it just because?

 

i'm interested as well. seems like a lot upgrade it, but i think there are some making big HP with the stock rails.

 

MM said in a couple topics down over ~600rwhp with stock rails.

 

so stock fuel rails can only support 600 rwhp then y does everyone buy them b/c i no not all the people who buy them make that kind of power

 

They start to become a restriction above 600rwhp under that is to add a front mounted regulator and a return line or just for looks. A set of polished rails on the intake do look pretty good.

Nate

 

ok thanks that what i wanted to hear

 

I agree, 600 rwhp and past is when the fuel rails need to be upgraded. Bob

 

For many, it's a "Bling" thing.

 

i got mine to make it an easy step to tap for fuel when i hook up my nitrous, if i do even hook it up... + my stockers didnt seem to want to work at all with the fast 90,aftermarket rails were cake after i got them lined up. then theres also the looks of it.