Rootlieb speedster kit

[Sparky]

Originally Posted by Jim Brierley

The Rootlieb has the tank behind the driver, so a pump is needed, no matter what others say.

Originally Posted by old31

As long as the tank is higher than the carb, then gravity will do its job without a pump. That's how I have it on my car.

Both are correct, but for the Rootlieb kit with the tank mounted using the supplied supports, the fuel level will be below the carb inlet unless you have a few gallons in it, as I quickly found out after stalling out on a test drive. I actually have two pump systems; an electric pump and an air pressurization system that puts 1-2 psi air in the sealed tank like in the old-time race cars. I use the air pressure for short trips and as a fun thing, and turn on the electric when I don't want to deal with the monitoring the air pressure. I installed an air valve on the gas cap so I can vent it when running electric.