I wanted to have a less-cluttered firewall in the engine bay.
Therefore, I opted to putting all of my fuel system in a cavity in the engine bay.
At the top of the picture in the cavity, you will see two rectangular tees that I made, one for supply, one for return. I built these to have an internal volume to reduce the velocity in the tee rather than using a traditional tee. On the right side of the cavity is the low-pressure fuel pump that draws from both tanks through the tee and then supplies the swirl tank located at the back of the cavity (bottom of picture). Out of the swirl tank, I go through a 100 micron filter to the high-pressure pump and then to a 10 micron filter to the pressure regulator. The return from the fuel rail goes back into the swirl tank, and the overflow from the swirl tank goes to the tee and then to each fuel tank.
I do have a little problem in that the return fuel would prefer to go to the right tank, so that tank increases in level a little bit as I drive. I need to put a valve on it to help balance the flow.
As shown in the first photo, a cover goes over all of the fuel system. The polished aluminum plate covers my tool box. I would say that I could carry a 6-pack in my "storage trunk", but it is already full of an air pump and tools.
Now, before you observant folks say something, I am in the process of redoing the rear suspension, so the car is taken apart a bit.
-Bob Woods
Tornado GT40 in Texas