Radium Engineering FCST-X Fuel Cell Surge Tank
Not sure which option fits your application? Contact Us — we're happy to help.
Radium Engineering FCST-X Fuel Cell Surge Tank - Universal - Walbro GSS342 Pumps Included
The Radium Engineering FCST-X is a surge tank that installs inside a fuel cell, eliminating fuel starvation under hard cornering, braking and acceleration. A lift pump pulls fuel from the floor of the cell into a 2L surge canister, where up to three EFI pumps feed high-pressure fuel to the engine through three separate filtration chambers. These versions come pre-assembled with new Walbro GSS342 pumps and filters (SKU 20-1990-01, 20-1990-02, 20-1990-03).
Three one-way FKM fill valves in the base of the surge tank open whenever the fuel level in the cell rises above the level in the canister, and returning fuel from the regulator is routed back into the canister to help keep it full. Excess fuel simply overflows back into the cell. Use the variant selector to choose one, two or three GSS342 surge pumps; every version includes one GSS342 lift pump.
Note: A fuel cell is not included. The cell must use a 6x10, 24-bolt fill plate flange and measure at least 196mm (7.7in) from the outer top face to the internal floor. The lift pump is packed loose so its height can be set to suit your cell. A fuel filler (3-bolt, 59.5mm PCD pattern) is sold separately, and a hose and/or filter must be connected to the VENT port. Installation by a professional is recommended.
Features
- 2L surge tank canister holding up to 3 surge pumps plus 1 lift pump
- Walbro GSS342 surge and lift pumps pre-installed with filters (lift pump packed loose)
- 3 one-way FKM fill valves, 355LPH each (1065LPH total)
- PUMP OUT port: 10AN ORB (7/8"-14) with 10AN ORB to 8AN male adapter supplied
- RETURN port: 8AN ORB (3/4"-16) with 8AN ORB to 6AN male adapter supplied
- VENT port: 12AN ORB (1-1/16"-12) with 8AN male vent fitting (20-0934) supplied
- Fuel level sender block-off plate and 2AN ORB plug in the level switch port as standard
Need help confirming fitment? Contact our team at sales@chicaneaustralia.com.au.
Vehicle Compatibility
| Make | Model | Chassis | Years | Engine / Notes |
|---|---|---|---|---|
| Universal | Universal fitment - verify dimensions before ordering | - | - | - |
Technical Specifications
| Spec | Value |
|---|---|
| Brand | Radium Engineering |
| Surge Tank Volume | 2L |
| Pump Capacity | Up to 3 surge pumps + 1 lift pump |
| Pumps Included | Walbro GSS342 |
| Fill Valves | 3 x one-way FKM, 355LPH each (1065LPH total) |
| Pump Outlet Port | 10AN ORB (7/8"-14), 8AN male adapter supplied |
| Return Port | 8AN ORB (3/4"-16), 6AN male adapter supplied |
| Vent Port | 12AN ORB (1-1/16"-12), 8AN male fitting 20-0934 supplied |
| Fuel Cell Requirement | 6x10 24-bolt fill plate flange, min. 196mm (7.7in) deep |
| Filler Flange Pattern | 3-bolt, 59.5mm PCD |
| Part number(s) | 20-1990-01, 20-1990-02, 20-1990-03 |
| 1 Surge Pump + 1 Lift Pump – Part number | 20-1990-01 |
| 2 Surge Pumps + 1 Lift Pump – Part number | 20-1990-02 |
| 3 Surge Pumps + 1 Lift Pump – Part number | 20-1990-03 |
No instructions available for this product.

Need Help Finding the Right Part?
We’ll Track It Down for You
We know how frustrating it can be searching for the right part. If it’s not listed on our site, that doesn’t mean we can’t source it.
Fill out the quick form below and our team will track it down for you.

