Radium Engineering 20-1990-02 FCST-X Fuel Cell Surge Tank (2 Surge + 1 Lift Pump

Vehicle Fitment

• Universal application - designed for motorsport fuel cells with 6"x10", 24-bolt top plate openings (depth ≥196 mm).

Features

• Pre-assembled FCST-X fuel cell surge tank system including 2 Walbro GSS342 surge pumps and 1 Walbro GSS342 lift pump.
• CNC-machined aluminium construction with anodised finish for durability and corrosion resistance in racing environments.
• Single 10 AN ORB female merged outlet for clean feed path; dual surge pumps provide high flow capacity for competition use. :contentReference[oaicite:1]{index=1}
• One-way fill valves (355 LPH each) maintain surge tank capacity even under fuel cell slosh / high-G conditions. :contentReference[oaicite:2]{index=2}
• High-current stainless steel electrical studs suitable for multiple pump wiring and high-power use. :contentReference[oaicite:3]{index=3}
• Compatible with gasoline, unleaded fuels, ethanol/E85, methanol when paired with appropriate plumbing. :contentReference[oaicite:4]{index=4}
• Service-friendly access: "fast-lift" feature allows pump module swap with minimal downtime. :contentReference[oaicite:5]{index=5}
• Ideal for high-power, racing or high-boost applications where fuel starvation must be eliminated under dynamic conditions.

Specifications

• Model: FCST-X (Fuel Cell Surge Tank) 20-1990-02 variant (2 surge pumps + 1 lift pump included). :contentReference[oaicite:6]{index=6}
• Outlet: 10 AN ORB female standard (includes adapter 10 AN ORB → 8 AN male). :contentReference[oaicite:7]{index=7}
• Return port: 6 AN male (standard unit). :contentReference[oaicite:8]{index=8}
• Vent port: 8 AN male standard - upgradeable for high-flow dry-break venting. :contentReference[oaicite:9]{index=9}
• Fuel cell compatibility: Requires 6" x 10", 24-bolt flange, depth ≥196 mm for proper installation. :contentReference[oaicite:10]{index=10}
• Capacity: Approx. 2.6 litres for surge tank portion (per FCST-X product line). :contentReference[oaicite:11]{index=11}

Included Components

• 1x Radium Engineering 20-1990-02 FCST-X surge tank assembly (pre-installed with 2 surge pumps + 1 lift pump).
• Pump module: 2x Walbro GSS342 surge pumps + 1x Walbro GSS342 lift pump (factory installed).
• Fuel filters, one-way fill valves, filler plate, hardware - as supplied by Radium for the FCST-X kit. :contentReference[oaicite:12]{index=12}
• Adapter fittings: 10 AN ORB to 8 AN male (feed outlet), 8 AN ORB to 6 AN male (return), vent port 8 AN male. :contentReference[oaicite:13]{index=13}

Product Description

The Radium Engineering 20-1990-02 FCST-X Surge Tank is engineered for high-performance fuel systems in motorsport or highly tuned vehicles. It is a drop-in solution for competition fuel cells built to the widely used 6"x10" top-plate configuration. With dual large-capacity surge pumps and a dedicated lift pump, the system ensures stable fuel delivery, prevents starvation during high-G maneuvers, and supports large fuel flows required by high-output or boosted engines.

Installation aligns with motorsport standards: the tank module is compatible with multiple aftermarket pumps (Walbro GSS342 included), features a merged 10 AN outlet for cleaner plumbing, and offers service-optimized design including fast-lift pump access. Whether you're building a drag car, road-race machine, or endurance rig, the 20-1990-02 brings a professional-grade solution to fuel supply management.