[eschaider]

When you build your fuel cell (if that is what you choose to do), instead of using the usual foam interior to mitigate fuel slosh, consider an egg crate-style baffling for the tank.

While the foam does an excellent job of controlling slosh, over time, it deteriorates and clogs the tank and fuel system with decomposing foam particles. Regular fuel cell maintenance and foam replacement prevent this from occurring. On a street-driven car, this maintenance can be an unwelcome challenge and expense. The egg crate-style in-tank baffling will eliminate unwanted fuel slosh and nuisance foam replacement regimens.

The egg crate-style baffling does not need to be welded in to work. In fact, the non-welded installations work very well.

A closing thought on tank material. While aluminum provides a desirable weight savings, for a race car, it is much more susceptible to physical damage than if you made your tank out of sheet stainless. The stainless is easier to weld, almost as easy to bend, and much more resistant to accidental damage.