OVERVIEW
COMPATIBILITY
- Mitsubishi Evolution VIII
- Mitsubishi Evolution IX
OVERVIEW
This comprehensive installation kit includes everything needed to install a Radium fuel surge tank with a single 39mm fuel pump in a Mitsubishi Lancer Evolution 8-9. To purchase the physical Radium Engineering FST, click HERE. The kit was not designed to work with the Radium MPFST.
All Radium FSTs are CNC machined from aluminum. They are fully anodized and use PTFE insulated wiring, submersible hose, etc. to make them alcohol (ethanol/methanol/E85) compliant. The Mitsubishi Evolution 8-9 install kit locates the FST in a collision-safe area of the trunk, centered behind the rear seat.
This allows for the majority of the trunk space to still be useable. The aluminum bracket solidly mounts to the V-brace in front of the rear seat carpet cover in the trunk. The FST with black anodized bracket is isolated through the OEM carpet cover (shown below) to reduce fuel pump noise and vibration.
Also included are wiring components with flying leads featuring Raychem solderless butt splices, and a weatherproof fuse and relay to drive the FST's fuel pump. Wiring is very simple and takes less than 30 minutes to assemble. No soldering is required.
PRODUCT VIDEO
FEATURES
- Preassembled -6AN PTFE Hoses
- Aluminum Mounting Brackets
- AN and OEM Style Adapter Fittings
- Stainless Steel Hardware
- Barricade Hose, non-permeating
- Wiring Components with Relay and Fuse
- Solderless Heat Shrink Connectors
NOTES
- Due to the restrictive return port on the OEM fuel pump housing, a slightly higher static fuel pressure is normal when using a high flow pump. To alleviate this issue, the OEM venturi jet pump in the return port can be modified to alleviate the restriction and promote fuel flow back into the OEM fuel tank. This is noted in the instruction manual.
- Depending on the flow rate of the fuel pump installed into the FST, a drop-in fuel pump upgrade may be required in the main tank. The main tank's pump is responsible for keeping the surge tank full, and requires a pump that flows around 40% to 50% of what the surge tank pump flows. This is an estimate and will vary.
ORDERING
This installation requires purchasing the install kit, the surge tank and the fuel pump for the surge tank separately. Many different fuel pumps can be installed into the surge tank and the available pump options from Radium directly are listed in the check boxes to the right.
To order a complete kit, select the install kit, the surge tank, and one fuel pump. To use a fuel pump other than what is listed, do not select a fuel pump from the checkboxes and order the desired fuel pump from another source.
To see a full list of fuel pumps compatible with the FST, click here.
Fuel Surge Tank Install Kit, EVO 8-9
- Regular price
- Sale price
- $0.00
- Regular price
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Install Instructions PDFs
Installation Instructions (PDF)Install Instructions PDFs
Additional Installation Instructions (PDF)

