Description

COMPATIBILITY

Nissan (R35) GT-R

OVERVIEW

If a complete fuel delivery kit for the R35 GT-R is needed, go HERE.

PRODUCT VIDEO

20-0572 Fuel Hanger Nissan R35 GT-R Pumps Not Included

The Radium Engineering fuel hanger completely replaces the factory in-tank fuel pump unit in the R35 GT-R and permits up to three 39mm diameter aftermarket pumps (brushed or brushless) to supply fuel to the engine. No permanent vehicle modifications are required for installation. The pumps are housed in an aluminum collector box that is kept full during operation. This ensures that fuel starvation does not occur, even during aggressive driving. The fuel pump outlet port is 10AN ORB female threaded and includes a 6AN male adapter, while the return port is 8AN ORB female threaded and includes a 6AN male adapter. The system is compatible with alternative fuels such as methanol, ethanol, E85, etc. Radium Engineering recommends reviewing the installation instructions (link above) before purchasing.

PUMP COMPATIBILITY

For vehicles with high fuel demands, a brushless fuel pump system may be a good option. This Radium in-tank hanger system is compatible with up to three Ti Automotive E5LM brushless fuel pumps. Check valves are supplied so that multiple Ti Automotive E5LM pumps can be used without back-flow between pumps.

All brushless fuel pump requires their own separate stand-alone controller.

FEATURES

Drop-In OEM Replacement
Permits 1, 2, or 3 Pumps
Fuel Starvation Protection
Integrated 1-Way Fill Valve
High Current Electrical Hardware
Compatible with Various Pumps
Anodized Aluminum Construction
10AN ORB Threaded Outlet Port
8AN ORB Threaded Return Port
6-Hole Fuel Return Diverter
Anodized Aluminum Collector Box
Fuel Resistant Tubing and Wiring
OEM Hard Line Compatible
Stainless Steel Hardware
Gasoline, Methanol, and Ethanol Compliant
New Anti-rotation Electrical Terminals

PREVENTING FUEL STARVATION

The GT-R saddle bag style fuel tank uses two OEM venturi jet pumps. They supply fuel from both sides of the tank to the OEM pump bucket and are driven by fuel returning from the regulator. When the fuel pumps are upgraded, these venturi jet pumps become a restriction in the return line, resulting in elevated fuel pressures and unreliable regulator performance. By reconfiguring the venturi jet pump plumbing, Radium Engineering has kept their functions without impacting the returning fuel from the regulator. This allows the pumps to be upgraded without fuel pressure concerns.

Depending on fuel pressure, the venturi jet pumps will consume 15-45 LPH. Take this fuel loss into consideration when sizing the fuel pumps.

In addition to the venturi jet pumps scavenging fuel, the pressure regulator return also keeps the large collector box filled with fuel. Additionally, the Radium Engineering 20-0572 incorporates three 355LPH one-way fill valves integrated to the bottom of the collector box that allows fuel in, but not out. The 1-way fill valves flow 355LPH each (1,065LPH total).
All of the components work together to keep the collector box filled with fuel and prevent fuel pump starvation.

PLUMBING

To clear the OEM fuel pump cover plate, the standard fuel hanger kit includes low profile swiveling adapters that convert to 6AN male, along with short 6AN PTFE hoses and adapters for easy connection to the OEM fuel piping. Other adapter fittings are available and are sold separately.

FUEL FILTRATION

Sock filters are provided for all 3 fuel pump inlets. Since the fuel hanger eliminates the non serviceable post pump filter, an aftermarket filter is required to be installed downstream. This filter is included in our Fuel Feed Line Kits.

ELECTRICAL

The fuel pump hanger features custom designed anti-rotation stainless electrical studs that easily handle the high current demand that multi-pin bulkhead connectors lack. These serviceable connections are hermetically sealed and impervious to all standard and exotic fuels. Non conductive anodized aluminum acorn nuts are provided to prevent any accidental short circuiting. Electrical hardware is included for the fuel pump(s) and OEM sensors. Furthermore, the in-tank wiring is insulated with high quality chemically resistant ETFE. The factory temperature and fuel level sensors are reused.

The factory GT-R fuel pump hanger utilizes two fuel pumps. In some cases, two aftermarket pumps can use the OEM wiring. However, custom wiring will be necessary to control a third pump. Fuel pump wiring is specific to which fuel pump(s) is used and which trigger strategy will be implemented. See the general recommendations below:

20-0851-05 Fuel Hanger Feed Kit Nissan R35 GT-R Microglass Filter

When installing a Radium in-tank fuel hanger with high-flow aftermarket pumps, the stock R35 fuel lines may not be sufficient. The fuel hanger feed kits include everything required to connect all Radium fuel hangers directly to Radium fuel rails. It comes with new PTFE feed lines and re-uses the factory feed line as the return for the regulator.

The fuel filters provided in the 20-0851-03 and 20-0851-05 feed kits feature an integrated check valve to hold fuel pressure after the engine is shut OFF. Because fitment is extremely tight, the 10AN pump outlet port is first split into two 6AN feed lines. The dual 6AN PTFE lines run parallel under the vehicle and are secured using billet aluminum retainers with OEM hardware. The dual 6AN PTFE lines run through a serviceable fuel filter that secures using a GT-R specific heat shield. The 2 lines split and are ready to be installed into the 6AN male fittings on the front ports of the fuel rails (not included).

COMPATIBILITY