Fuel tank to fuel filter to fuel pump

<< Install Cross Over Tube                     Tunnel Floor and Venting >>

Major System Category: Fuel System
Task: Install fuel filters and fuel pump
Parts: Fuel pump and plumbing
Prerequisite Tasks: Aluminum Tanks
Additional Costs: $930 (entire fuel pump and fittings)
Time Requirement: 3 hours (plus some staring at stuff time)
Date Started: November 3, 2012
Date Completed: November 3, 2012

The is the box of parts from QRP. There are instructions included for how to wire up the fuel bump and filters and regulator. It is up to the builder to figure out the best way to plumb the fuel lines. Once you sit down and think it, this isn't that hard to do.

Note: This post does not reflect the Factory Five build manual. I am using QRP's aluminum tanks and external fuel system. This is a personal choice that reflects my belief that this is a better way to go.

Holley fuel pump with the anti vibration mounts attached.

To say that the box of parts for the fuel system is a little intimidating is something of an understatement. The first thing I did was separate everything into their like parts. There 6 AN and 8 AN fittings. There is steel braided hose for 16 AN, 8AN and 6 AN. There are elbows, straight couplers, hose fittings, a pre and post fuel filter, pressure regulator, gauge and the fuel pump.

This is the supply line from the driver's side fuel tank to the fuel system. This is a 8AN fitting.

Consideration: This is definitely a task that should be done BEFORE  the engine is put into the car. You can stand in the engine bay and work on this stuff. Also connect the cross over tube FIRST. This sets the tanks in place.

Fundamentally, this is what has to happen:

1. Run a 8 AN line from the driver's side fuel tank to a pre fuel filter. This is the small one.
2. Connect the pre fuel filter to the fuel pump using 8AN fittings.
3. Connect the fuel pump to the the post fuel filter using 8 AN fittings. This is where I used the nifty 160 degree elbow fitting to navigate the sharp angle above the fuel tank housing.
4. Exit the post fuel filter with a 6 AN fitting. Since everything else is a 6 AN fitting in the kit, I am guessing the connection to the fuel rails are 6 AN.

Supply line from the fuel pump connected to the pre fuel filter. This is going to be  routed into the fuel pump, but I need a 8AN/8AN straight coupler to make that happen.

Fuel pump and post fuel filter mounted and the panel above the fuel tank on driver's side.  

This required me to make the following lines:

1. 8AN line from the fuel tank to the pre fuel filter. This approximately 16 inches long.
2. 8AN line from the 160 elbow to the post fuel filter. This about 6 inches long.

This is the supply line from the fuel tank to the pre fuel filter.

This is the supply line from the fuel pimp to the fuel filter. See the nifty 160 degree elbow.

I have a video on how to build the AN lines on my cross over tank post.

Consideration: When measuring steel lines, the tape measure is great for an initial idea. However, I found that the steel lines do not bend sharply, so it was best to run the line along the same route and mark the line where it comfortable terminates.