Radium FCST-X Fuel Cell Surge Tank Suit Walbro F90000267/274/285

NOTE: These kits eliminate the OEM hanger's "post" fuel pump filter. A low micron aftermarket fuel filter should be installed downstream to protect the injectors from debris. NOTE: the optional fuel hanger plumbing kits listed below include this necessary post pump filter.

The Radium Engineering fuel pump hanger allows the use of 1 or 2 aftermarket pumps in the stock Mitsubishi Evo 7-8-9 fuel tank. The machined assembly drops-in the factory fuel tank replacing the OEM hold-down flange. A single 8AN male pump feed port and 6AN male return port simplify aftermarket -AN hose plumbing. However the preassembled adapter fittings are compatible with the OEM fuel lines. 

The custom designed stainless electrical studs easily handle the high current demand that compact bulkhead connectors lack. These serviceable connections are properly sealed and impervious to all standard and exotic fuels. The low profile design keeps all wiring tucked nicely underneath the OEM cover plate. Nonconductive acorn nuts are provided to prevent any accidental short circuits. Furthermore, the high quality in-tank wiring is insulated with chemically resistant ETFE. Electrical hardware is included for the fuel pump(s) and OEM level sender.

One major issue with the OEM EVO 7-8-9 fuel pump hanger is the restrictive return port and venturi jet pump. When using aftermarket high-flow fuel pumps, the OEM jet pump becomes too restrictive creating unwanted backpressure in the regulator return line causing excessive fuel rail pressure. The Radium Engineering fuel pump hanger includes a venturi jet pump with a new integrated pressure-relief valve to minimize back pressure. 

All returning fuel from the pressure regulator and crossover hose exit the jet pump keeping the OEM gas tank baffle full for starvation protection. Single pump applications can reuse the OEM fuel pump controller wiring, but it is recommended to upgrade the OEM wiring as these high flow fuel pumps draw additional current requiring larger gauge wire. Fuel pump wiring kits can be purchased separately. Select qty1 for single pump applications and qty2 for dual pump applications.

Pump Selection

• Walbro F90000267
• Walbro F90000274
• Walbro F90000285

There will be enough components included with this option to use 1 or 2 fuel pumps. Depending on the setup, some parts will simply not be used.

• Anodized Aluminum Mounting Plate
• Venturi Jet Pump with Pressure Relief Valve
• 8AN Male and OEM Compatible Pump Outlet Fittings
• 6AN Male and OEM Compatible FPR Inlet Fittings
• Anodized Aluminum Dual Pump and Fuel Sensor Bracket
• Electrical Hardware for Fuel Pumps and OEM Sender
• Fluorosilicone Duckbill Return Valve
• Submersible Fuel Lines
• Stainless Steel Hardware and Clamps