RADIUM Engineering 20-1989 FCST-X Extension Kit 3.7in 1.2L Fuel Surge Tank

The RADIUM Engineering FCST-X Extension Kit permits an additional 1.2 liters of volume for the fuel surge tank found in FCST-X fuel cell surge tank systems. This extension also lowers the 1-way fill valves for increased fuel starvation protection at low fuel levels, making it ideal for high-performance racing applications.

Key Features:

• Anodized aluminum canister adds 3.7 inches of height and secures between the top plate and existing surge tank canister
• Includes longer stainless steel pump bracket to replace the existing pump bracket
• Increases total fuel surge tank capacity by 1.2 liters for extended high-G cornering protection
• Precision-machined components with premium anodized finish

Compatibility:

• Compatible with RADIUM FCST-X models: 20-1990-00, 20-1990-01, 20-1990-02, 20-1990-03, 20-1991-00, 20-1992-00, 20-1992-01, 20-1992-02, 20-1992-03
• Works with RADIUM R14A (14 gallon) and R22A (22 gallon) fuel cells
• Fuel cells must be at least 10.8 inches (275mm) deep measured from top sealing surface to inner floor
• Not compatible with R06A, R10A, or R11A RADIUM fuel cells

What's Included:

• Anodized aluminum canister extension
• Stainless steel pump bracket
• Large ID fuel pump tubing
• Small ID fuel pump tubing
• Submersible fuel hose
• Stainless steel hardware

Installation Notes:

• This kit must be installed by the end user and is not pre-assembled by RADIUM Engineering
• If installing into 20-1991-00 (for Bosch BR540 or DW400), RADIUM P/N 14-0691 adapter fittings are required
• Not compatible with shallow fuel cells due to 3.7-inch height increase

This extension kit is essential for racing applications requiring maximum fuel capacity and starvation protection during sustained high-G lateral loads and low fuel conditions.