Factory Five Racing Forum banner

help on fuel line routing requested

2.3K views 4 replies 4 participants last post by  CraigS  
#1 ·
I waited to route my fuel lines (EFI - feed and return) until I had a test fit for my FE motor. Glad that I did because it really helped me understand exactly where everything was going to wind up, e.g. headers, etc. I do not want to route fuel lines through the trans tunnel (heat, close to rotating stuff, not easy to inspect or replace, etc.). Will use the tunnel for the battery cables and rear harness.

Best place for my fuel pressure regulator is on the outside of the inner angled aluminum panel of the passenger side foot box (the angled panel that would be to the left of the passengers ankles). This keeps it well aft of the headers and keeps the line routing neat and with only a short length of braided line from and to the fuel rails. With the FPR located there, I would like to bring the fuel lines forward along the inboard side of the passenger side 4" main round tube. With the fuel lines on the inner side (Not INSIDE the 4" tube - along the 4" tube but on the inner side = closest to the midline of the car), I can turn them up and very easily get to the FPR for the return line and make the transition from hard line to braided line for the feed side of the system.

In terms of leaving the fuel tank and getting to the planned path along the 4" tube, I think I have a good route along the outside of the square tube above the rear wheel. I'm using Cunifer for the hard lines based on excellent results using it for the brake lines.

Anyone see any issues with my plan? Your thoughts are much appreciated, as always.

Best,
Ron
 
#4 ·
without routing in the "transmission tunnel"?

Recommend routing on the outboard side of the outside of the 4" round tube and up the front 1" square tube to the FPR.
Mark:
Thanks. thought of looping above the rear 4" cross member but I see now that that route is just too complicated. I'll go down the outside of the main 4" tube as you suggested.

427 - beautiful craftsmanship on your build pics. thanks much. I will use that routing with the exception that the FPR will be on the angled inner wall of the passenger foot box.

Best,
Ron
 
#3 ·
Fuel Lines

From everything I read it seems best to keep the fuel lines out of the transmission tunnel. I ran mine on the outside of the 4" frame, passenger side. My engine is not an fe but I think everything should clear just fine like this.

Image


Image


Image


Image
 

Attachments

#5 ·
For a lot of reasons I would prefer the inner side of the 4 inch main tube. But...that 4 inch cross tube behind the trans means you have to go under it...which would make a short section of your fuel line the lowest thing on the car. This is the main reason most everyone uses the outside routing.
 
  • Like
Reactions: picah