On my way to a better fuel system for my 04' Veet FFS
02-25-2006, 02:43 PM
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On my way to a better fuel system for my 04' Veet FFS Ok, since I have to do everything myself 
I've started working on a fuel system for my 04' Vette with the GM screwy 2 tank FFS fuel system. Got most my ideas from the Camaro boards. Basically just took out all the sharp 90* turns that the stock fuel rail has and made all the lines even length to feed the rails. Right now I have right at $500 in it. I will eventually go with a return system. Before on the street the fuel pressure would drop from 61psi to 48-49psi at WOT starting at 3500rpm. Now I see a fuel drop from 61psi then at around 4000rpm it drops to 56psi then by 6000rpm I am seeing 53-54psi. Definate improvement. Its running so much richer when I hit the gas(no instant pressure loss) that there is a stumble now. Also with the incresed fuel pressure my car is running alot richer, below 10/1. So when I lean it back out to 10.5-10.9/1 I should see even more of a rise in fuel pressure...Next step is a return system with a different fuel pump, regulator to keep the rock solid 61psi... 
I've started working on a fuel system for my 04' Vette with the GM screwy 2 tank FFS fuel system. Got most my ideas from the Camaro boards. Basically just took out all the sharp 90* turns that the stock fuel rail has and made all the lines even length to feed the rails. Right now I have right at $500 in it. I will eventually go with a return system. Before on the street the fuel pressure would drop from 61psi to 48-49psi at WOT starting at 3500rpm. Now I see a fuel drop from 61psi then at around 4000rpm it drops to 56psi then by 6000rpm I am seeing 53-54psi. Definate improvement. Its running so much richer when I hit the gas(no instant pressure loss) that there is a stumble now. Also with the incresed fuel pressure my car is running alot richer, below 10/1. So when I lean it back out to 10.5-10.9/1 I should see even more of a rise in fuel pressure...Next step is a return system with a different fuel pump, regulator to keep the rock solid 61psi... Last edited by chriswtx; 02-25-2006 at 03:06 PM.
