Radium - FCST-X Fuel Cell Drop-In Surge Tank System

The Radium Engineering FCST-X (Fuel Cell Surge Tank) is the motorsport benchmark for drop-in fuel starvation prevention in racing fuel cells. Engineered to mount directly into standard 6" x 10" 24-bolt fuel cell access openings, the FCST-X houses an internal 2.6-liter collector tank submerged directly inside the fuel cell bladder, providing continuous uninterrupted fuel delivery under extreme multi-G cornering and acceleration.

Configuration Options (Units Without Pumps):

• 20-1990-00: Configured for standard 39mm high-pressure pumps (Walbro GSS342, AEM 50-1000/1200, DeatschWerks DW440).
• 20-1991-00: Configured for 46mm high-flow pumps (Bosch Motorsport BR540 or DeatschWerks DW400).
• 20-1992-00: Configured for 39mm/50mm stepped base pumps (Walbro F90000267, 274, 285, 295 Hellcat/E85).
• 20-1993-00: Configured for brushless motor fuel pumps (Ti Automotive E5LM Brushless).
• 20-1995-00: Configured for external inline fuel pumps featuring dual -8AN ORB high-flow bottom suction pickups.

Key Performance Features:

• 2.6L Internal Surge Reservoir: Internal surge can is continuously filled by three directional one-way flapper trap doors and returned fuel, keeping pump pickups submerged.
• Direct 24-Bolt Flange Drop-In: Directly bolts to the standard 6"x10" top opening on Radium RA-Series, Fuel Safe, ATL, and Harmon fuel cells.
• Electrical Bulkhead Connectors: High-amperage O-ring sealed stainless steel electrical pass-through studs ensure safe, vapor-free staged wiring.
• Billet Anodized Aluminum: CNC machined 6061-T6 aluminum top plate and surge canister, black anodized for complete E85 ethanol compatibility.

Notice: Inlet and outlet ports are female ORB; male AN adapter fittings and fuel pumps are sold separately.