Radium Nissan S14/S15/R33/R34 Fuel Hanger For GSS342 Or AEM 50-1200 - Pumps Not Included

LATE MODEL NISSAN FUEL PUMP HANGER

This product is compatible with the following vehicles:

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)

OVERVIEW
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.

FITTINGS

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.
(Note: Straight adapter fittings may also be used, but clearance with the access cover plate will not be possible)


The photo below shows -AN swivel adapters installed in the feed and return ports. The crossover port (center) does not need to be changed.


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 completely 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.

FUEL PUMP INFORMATION
All kits come partially assembled with the final assembly performed by the technician during installation. Refer to the instructions above for more details.

If a "Pumps Not Included" option is selected, the kit will have enough parts to run 1 or 2 fuel pumps and the user must supply their own compatible fuel pumps.