Radium - FST-R Regulated Fuel Surge Tank (Integrated FPR)

The Radium Engineering FST-R (Fuel Surge Tank, Regulated) is a revolutionary all-in-one fuel delivery powerhouse that integrates a high-volume fuel surge tank and an adjustable fuel pressure regulator into a single compact canister. By recirculating regulated fuel internally inside the surge tank, the FST-R eliminates clutter, reduces engine bay heat soak, and simplifies fuel plumbing down to a single feed line.

Key Performance Features:

• Integrated Billet Fuel Pressure Regulator: Built-in top-mounted FPR regulates rail pressure and returns overflow directly into the surge tank buffer.
• Eliminates Fuel Return Heat Soak: Because returned fuel stays in the surge tank reservoir rather than cycling through engine bay lines, fuel rail temps remain cooler.
• Internal Single EFI Pump Housing: Accommodates standard 39mm high-flow pumps (Walbro GSS342 / AEM 50-1200) or high-amp E85 Hellcat pumps.
• Anti-Starvation Surge Reservoir: Always keeps the high-pressure pump submerged, eliminating starvation during low tank levels and aggressive track driving.
• 6061 Billet Construction: Black anodized aluminum with laser-etched port identifiers and O-ring sealed fittings.

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