2001 lq4 fuel line questions
#1
2001 lq4 fuel line questions
I am in the process of building the fuel system for my lq4 conversion. I have read about return-less fuel systems and got to wondering about my stock lq4 fuel system. The 2001 lq4 appears to have a fuel return but I wanted to be certain, see photo.
I am in the process of install a 86/87 Buick Grand National gas tank with a Walbro in tank pump. I have a Delco GN in-line fuel filter but read threads about Corvette filter/regulators. I will be using the stock OE lq4 intake, fuel rails, injectors, etc. So, stock lq4 with T56 six speed. So, do I have a return system?
I am in the process of install a 86/87 Buick Grand National gas tank with a Walbro in tank pump. I have a Delco GN in-line fuel filter but read threads about Corvette filter/regulators. I will be using the stock OE lq4 intake, fuel rails, injectors, etc. So, stock lq4 with T56 six speed. So, do I have a return system?
Last edited by 52 Rat; 12-13-2011 at 08:38 AM.
#2
TECH Senior Member
iTrader: (7)
It is entirely possible, and highly likely given your pictures, that the truck engines in 2001 had a return line from the fuel rail.
Do you plan to keep the truck intake?
Andrew
Do you plan to keep the truck intake?
Andrew
#6
TECH Junkie
iTrader: (1)
The 01 truck had a return. Looking at the pics you can see the disk shaped regulator with the vacuum line on it. The large line by the brake reservoir is the feed, smaller one is the return.
I'm not sure what effect it would have capping off the return and running a returnless system with a corvette regulator. You might be better off using a later truck returnless rail or flex fuel stainless rail if you're going to do that.
I'm not sure what effect it would have capping off the return and running a returnless system with a corvette regulator. You might be better off using a later truck returnless rail or flex fuel stainless rail if you're going to do that.