OVERVIEW
The Radium fuel pump hanger for late model Subaru vehicles replaces the OEM unit and allows the use of 1 or 2 high-flow aftermarket fuel pumps.
The system is safe to use with alternative fuels such as E85.
The machined assembly mounts in the factory fuel tank using the OEM gasket and replaces the OEM hold-down flange. No permanent modifications are required
making installation simple.
PREVENTING STARVATION
To help prevent starvation, the anodized aluminum collector box keeps fuel trapped around the pumps. Furthermore, there are two 1-way fill valves on the collector
box thats allow fuel in but not out. Each fill valve flows 355LPH (710LPH total).
PLUMBING
As described below, there are 3 external ports:
1. FUEL PUMP OUT
This port is thread tapped for 8AN ORB (3/4"-16). A SAE quick connect male adapter fitting is preinstalled for connecting to the OEM feed line.
2. FPR RETURN
This port is thread tapped for 6AN ORB (9/16"-18). A SAE quick connect male adapter fitting is preinstalled for connecting to the OEM return line.
3. CROSSOVER
This port is thread tapped for 6AN ORB (9/16"-18). A SAE quick connect male adapter fitting is preinstalled for connecting to the OEM crossover line.
ELECTRICAL
Single pump applications can reuse the OEM fuel pump controller wiring, as shown below. However, it is recommended to upgrade the OEM wiring to get the maximum potential
out of these high current, high flow pumps. Fuel pump wiring kits can be purchased HERE. Select qty1 for single pump applications and qty2 for dual pump applications
Unlike compact multi-pin electrical connectors, these custom designed stainless steel electrical studs easily handle the high current demand from aftermarket fuel pumps.
These serviceable connections are hermetically sealed and impervious to all standard and exotic fuels. The low profile design keeps all wiring tucked nicely underneath the
OEM access cover. Each pump has it's own dedicated +/- electrical connections. Nonconductive anodized acorn nuts are provided to prevent any accidental short circuits.
All necessary electrical hardware is provided for external wiring
connections.
The factory fuel temperature and level sensors are re-used. The collector box permits mounting for level as shown above.
The internal pump bracket permits mounting for the temperature sensor.
Consult the installation instructions link at the top of this page for more details.
INCLUDED
-Anodized aluminum and laser engraved fuel hat
-Collector box with two 1-way fill valves
-Pressure relief valve venturi jet pump
-Stainless electrical terminals
-Stainless steel hardware
-SAE quick connect fittings
-Submersible fuel tubing