Radium Engineering FCST-X Fuel Cell Surge Tank

Radium Engineering developed the FCST-X Fuel Cell Surge Tank around the needs of modified street and competition cars, where component compatibility and clean system layout matter as much as outright capacity.

Why This Upgrade Matters

A fuel-cell surge-tank system combines the anti-starvation function of a surge tank with compact in-cell packaging. This architecture is aimed at motorsport builds where fuel delivery must remain consistent under sustained lateral and longitudinal load while minimizing external plumbing and component count.

Product-Specific Details

The Radium Engineering FCST-X integrates a fuel-cell surge tank and lift-pump system into the industry-standard 6 x 10-inch, 24-bolt fuel-cell opening.

Choose Your Configuration

• Pump Compatibility: External Pump Outlet / Pump Package: No Pumps — RAD20-1995-00: Select this version only if its pump family and included pump package match the planned fuel system.
• Pump Compatibility: Ti Automotive E5LM / Pump Package: No Pumps — RAD20-1993-00: Select this version only if its pump family and included pump package match the planned fuel system.
• Pump Compatibility: F90000267/274/285 / Pump Package: 3 Surge + 1 Lift – F90000274 Included — RAD20-1992-03: Select this version only if its pump family and included pump package match the planned fuel system.
• Pump Compatibility: F90000267/274/285 / Pump Package: 2 Surge + 1 Lift – F90000274 Included — RAD20-1992-02: Select this version only if its pump family and included pump package match the planned fuel system.
• Pump Compatibility: F90000267/274/285 / Pump Package: 1 Surge + 1 Lift – F90000274 Included — RAD20-1992-01: Select this version only if its pump family and included pump package match the planned fuel system.
• Pump Compatibility: F90000267/274/285 / Pump Package: No Pumps — RAD20-1992-00: Select this version only if its pump family and included pump package match the planned fuel system.
• Pump Compatibility: Bosch BR540 / DW400 / Pump Package: No Pumps — RAD20-1991-00: Select this version only if its pump family and included pump package match the planned fuel system.
• Pump Compatibility: GSS342 / AEM 50-1200 / DW440 / Pump Package: 3 Surge + 1 Lift – GSS342 Included — RAD20-1990-03: Select this version only if its pump family and included pump package match the planned fuel system.
• Pump Compatibility: GSS342 / AEM 50-1200 / DW440 / Pump Package: 2 Surge + 1 Lift – GSS342 Included — RAD20-1990-02: Select this version only if its pump family and included pump package match the planned fuel system.
• Pump Compatibility: GSS342 / AEM 50-1200 / DW440 / Pump Package: 1 Surge + 1 Lift – GSS342 Included — RAD20-1990-01: Select this version only if its pump family and included pump package match the planned fuel system.
• Pump Compatibility: GSS342 / AEM 50-1200 / DW440 / Pump Package: No Pumps — RAD20-1990-00: Select this version only if its pump family and included pump package match the planned fuel system.

Technical Notes

Pump selection should be based on fuel type, target power, pressure requirement and whether pumps will be staged. Fuel-cell depth, top-plate pattern and service access should be confirmed before ordering.

Radium Part Numbers

• RAD20-1995-00
• RAD20-1993-00
• RAD20-1992-03
• RAD20-1992-02
• RAD20-1992-01
• RAD20-1992-00
• RAD20-1991-00
• RAD20-1990-03
• RAD20-1990-02
• RAD20-1990-01
• RAD20-1990-00

Enthusiast Notes

For time-attack, endurance and race builds, integrated surge control can simplify packaging while keeping the pressure pumps immersed and supplied during sustained G-load.

Before Ordering

Confirm the fuel-cell opening, internal depth, pump family, pump quantity and whether the selected SKU includes pumps. Verify motorsport-rule requirements for the complete fuel-cell installation.