Project Lexus SC300 Road Racer: Part 3 – Finishing the Fuel Cell


Zip ties can provide rubbing relief.

By tying the hoses to one another in this way, we can prevent them from rubbing. This will help to extend their life and prevent the braided covering from fraying. Simple, but effective.


The cell is almost finally installed. Only the vent tube remains to be done.

The vent tube allows air to vent during filling.

The vent valve is a ball-type check valve that will prevent fuel from escaping if the cell is ever inverted. It does not, however, prevent fuel vapors from escaping the cell while sitting. A factory fuel system typically does not allow fuel vapors to escape the system in any appreciable way. Race systems are not designed in this manner. This means that you must empty the fuel cell if the vehicle will sit for any extended period of time (more than a day or two), otherwise fuel will continue to evaporate from the cell. Using a long length of hose, running it high, and looping it before it comes back down all help to prevent any liquid fuel that might escape the vent valve during cornering from actually making it all the way out of the vehicle.

That’s it! The fuel cell is properly installed and securely mounted. Several extra safety precautions were taken. Everything should be able to survive the rigors of track duty, all while providing some performance benefit, too.


Fuel Safe

Radium Engineering


H Craft Customs

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