Fuel Cell Foam Or No Foam

No foam here 11 years so far with no issues that i m aware of used 15 gallon plastic cell.

Fuel cell foam or no foam.

The foam is still in good condition and doesn t show signs of breaking down afer 8 years. Fuel cell drag racing 5 gallons w sump raised plastic cap 8 an inlet outlet fittings w o foam gas alcohol methanol each 1 part number. My fule cell is rci i think but the new foam is fuel safe we allready took out the protectie sock from the pick up line and also run a filter before the back up pump and one after w e usually drain the cell after every race ill be opening it up next week ill let you guys know what the problem is maybe the new foam is letting a lot of residue in the pick up line. The foam degrading is from running the tank cell empty and letting the foam dry out.

The foam takes up a small volume of the fuel cell so it doesn t change the capacity of the fuel cell by very much. Otherwise you would literally have fuel flowing out the filler neck on a turn. When i redid the car in 2000 i bought a summit drag cell also full foam. I ran that cell from 1989 2000 without any signs of the foam breaking down.

Some fuels will also do this if you let it sit to long in the cell. A full tank of fuel weights about 120 pounds. I have no experience with fuel cells but i would imagine for a street car you would absolutely need the foam. However it plays two very important roles.

Do i need the foam on the street. The function most people know is that the foam keeps fuel from sloshing around in the turns.