Radium – FSTR-RA, Fuel Surge Tank Regulated (20-1933)

Radium – FSTR-RA, Fuel Surge Tank Regulated (20-1933)

Radium – FSTR-RA, Fuel Surge Tank Regulated (20-1933)

A fuel surge tank is designed to prevent starvation to the engine on vehicles with inadequate fuel tank baffling. The surge tank pump feeds the fuel rail(s). The volume of fuel inside acts as a buffer to always keep the fuel surge tank pump supplied. This volume is maintained by the main fuel tank’s (lift) pump as well as the fuel returning from the fuel pressure regulator.

In the case of the FSTR-RA (fuel surge tank regulated-rotating assembly), the regulator is built into the surge tank and recirculates fuel internally. Excess fuel in the surge tank is returned back to the vehicle’s main fuel tank.

Installing a surge tank is also an easy way to upgrade the fuel pump of a vehicle without opening or modifying the OEM fuel tank. The FSTR-RA is suitable with all gasoline types including unleaded, leaded, oxygenated, and pre-mixes. Furthermore, they are compatible with alcohol blends of fuel including methanol, ethanol, and E85.
The FSTR-RA houses a single internal fuel pump and has an integrated fuel pressure regulator machined into the top cap. This eliminates the need for an external fuel pressure regulator along with extra fittings and hoses. It simplifies the installation, reduces overall cost, reduces weight, and eliminates potential leak points in the fuel system. Furthermore, this system permits cooler fuel temperatures as the fuel is not returning from the hot engine bay.