The Radium Engineering fuel pump hanger replaces the entire factory fuel pump assembly inside the Nissan fuel tank. It can be configured with 1 or 2 aftermarket fuel pumps to meet the fuel demands of various high performance engines. Fuel pump options include Walbro (Ti Automotive) or AEM. The pump(s) are suspended down in the bottom of the tank, similar to the stock fuel hanger. From there, they feed through polyamide nylon tubing to the top hat.
The factory Nissan fuel level sender, low fuel switch, and fuel temperature (OBD-II only) are reused so full functionality is retained. A venturi jet pump is integrated into the top plate and provides means to draw fuel from the opposite side of the fuel tank.
The threads on the feed port are 10AN ORB (7/8"-14). The threads on the return port are 8AN ORB (3/4"-16). The pre-installed adapter fittings permit direct connections for all factory fuel line variations (SAE quick connect and hose barb). No extra fuel plumbing is required if using stock fuel lines. If using aftermarket -AN style hoses, low profile -AN swivel adapter fittings will be required and are sold separately.
The OEM system uses a venturi jet pump to transfer fuel from the passive side of the tank to the active (pump) side of the tank. When using aftermarket high-flow pumps this venturi jet pump creates a restriction in the fuel return, resulting in unwanted backpressure and unmanageable fuel pressure. Radium Engineering has redesigned the siphon system to eliminate this restriction but still effectively scavenge fuel the same as factory.
NOTES:
1. Depending on fuel pressure, the venturi jet pump will consume 15-45 LPH. Take this fuel loss into consideration when sizing the fuel pumps.
2. If it is important for fuel pressure to hold steady after the engine is shut down, install a check valve somewhere in the fuel system.
Recommended Additions:
Radium Engineering FHST (Fuel Hanger Surge Tank) - (Sold Separately)
The Radium Engineering FHST (fuel hanger surge tank) add-on is the ultimate solution for fuel starvation issues. Due to the saddle-bag style OEM fuel tank and insufficient baffling in late model Nissans, fuel slosh is common when driven aggressively. Unstable pressure resulting in a lean fuel mixture can cause engine damage. A stand-alone surge tank is an excellent device for eliminating fuel starvation issues, but installation can be complex. This add-on is a fully functional fuel surge tank mounted inside the OEM tank.
Radium Engineering Fuel Hanger Plumbing Kit - (Sold Separately)
This plumbing kits include everything required to plumb the fuel system between the Radium pump hanger and the fuel rail. This kit is NOT designed for the stock fuel rail.
All kits come partially assembled with the final assembly performed by the technician during installation.
This kit will have enough parts to run 1 or 2 fuel pumps and the user must supply their own compatible fuel pumps.
This system supports the following fuel pumps:
20-0632-00
- Walbro F90000267
- Walbro F90000274
- Walbro F90000285
- Walbro F90000295
- Ti Automotive E5LM (brushless)
20-0630-00
Filter socks (x2) are provided for these fuel pumps.
These pumps do NOT feature a check valve.
FUEL HANGER FEATURES
- Drop-In Installation
- Anodized Aluminum Construction
- Merged 10AN ORB Female Pump-Out Port
- Restriction-Free 8AN ORB Female Return Port
- Permits 1 or 2 Fuel Pumps
- Brushless Fuel Pump Compatibility
- High Current Electrical Hardware
- Integrated Venturi Jet Pump Siphon
- Fluorosilicone Duckbill Return Valve
- Stainless Steel Hardware and Clamps
- Gasoline, Methanol, and E85 Compliant
- New Anti-rotation Electrical Terminals
Fits:
- Nissan S14 Silvia (All models/trims/RHD/LHD)
- Nissan S14 200SX (All models/trims/RHD/LHD)
- Nissan S14 240SX (All models/trims/RHD/LHD)
- Nissan S15 Silvia (All models/trims/RHD/LHD)
- Nissan S15 200SX (All models/trims/RHD/LHD)
- Nissan R33 Skyline (All models/trims/RHD/LHD)
- Nissan R34 Skyline (All models/trims/RHD/LHD)
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