Fuel Cell

I figured it was time. With some suspected fuel delivery problems causing some engine damage, I figured it was time to do something with the tank. Now keep in mind I really like how it looks with the stock tank, but I feel it needs at least 5 gallons of fuel in it to keep the pick-up covered.

I "think" there was a race I went to in early May 2004 in which I ran it too low on fuel, allowing the pick-up to become uncovered. On a carbureted motor, the carb bowls generally can overcome a minor "blip" in fuel pressure. But with EFI, a "blip" can cause a momentary leanout and under the right (wrong) conditions, can act like a cutting torch inside the motor. We found we had all four pistons burnt to some degree when the motor was torn down at the end of last season, so I got to thinkin'....

Here is the 4 gallon fuel cell. Summit's house brand.

After trying a couple different ideas, I decided to cleanest approach would be to use the top half of a stock tank. It fits the opening the stock tank occupies and uses the stock mounting hardware...

....and with a little fab work holds the fuel cell...

...quite nicely!

Essentially, an opening was cut in the top with an abrasive cut-off wheel in a disc grinder, the bottom cut off and brackets fabbed up and welded to the bottom. The fuel cell pokes through the top a couple inches

With two #8 pick ups at the bottom rear of the tank, one can be used for fuel pick-up and one can be used as a return port. Two vent ports on top, but only the "anti-rollover" vent port is used. The anti-rollover port uses a check valve to prevent fuel from pouring out should the car end up shiny side down, if ya know what I mean!

The "almost finished" installation in the car. I weighed both the stock empty tank and then the whole fuel cell with mounting contraption. Both weighed in at 15 pounds. At least I can carry less fuel without risk of engine damage