VEHICLE COMPATIBILITY

PUMP COMPATIBILITY

⁽³⁾These pumps do NOT fit into the included pump strainer. Part number 13-1187 is required to use these pumps. You can order it from the optional parts on the right.

OVERVIEW
The Radium Engineering FHST (fuel hanger surge tank) is the ultimate solution for fuel starvation issues. Fuel pump starvation is common when a vehicle is driven aggressively and fuel sloshes away from the in-tank fuel pump.
A stand-alone surge tank is an excellent device for eliminating fuel starvation, but installation can be complex. The FHST is a fully functional fuel surge tank contained inside the OEM fuel tank. It can be configured with 1, 2, or 3 high pressure pumps to feed fuel to the engine and 1 lift pump to keep the surge tank full. This system can meet the fuel demands of any engine power level for your R32 GT-R.
Even with all of the extra fuel pumps, the FHST system is very straight forward and relatively simple to install. No grinding, bending, or modification of the vehicle is required. Furthermore, the system is compatible with alternative fuels such as E85.

FUEL SURGE TANK
The surge tank on this system is the collector box that is attached to the underside of the plate. It works by keeping fuel trapped around the pump (or pumps) that feed the engine. This ensures that fuel starvation will not occur and the supply of fuel to the engine will remain steady under all driving conditions.
The lift pump mounts in a stainless steel collector and scavenges fuel from the bottom of the tank to send to the surge tank. Fuel returning from the regulator also is routed into the surge tank, helping to keep it topped off.

PLUMBING
The preinstalled barb fittings permit direct connections to the factory rubber fuel hoses. No extra fuel plumbing is required. 

8AN (feed) and 6AN (return) adapter fittings are provided for connecting aftermarket -AN style hoses. The fitting ports are machined low enough to clear the unibody sheet metal. (Clear fuel pump cover for the R32 can be found HERE).

FUEL PUMP INFORMATION
All kits come partially assembled with the final assembly performed by the technician during installation. There will be enough parts to run 1, 2, or 3 surge tank pumps and 1 lift pump. A lift pump is required in all installations.

NOTES:
1. Fuel pumps are sold separately.
2. At minimum, one lift pump and one surge pump is required to run this system. 

A popular fuel pump strategy is to use both brushed and brushless pumps (E5LM) together as depicted below. In this case, the most cost effective solution is to purchase the following: 
P/N: 20-0741-00 (shown above), Qty: 1
P/N: , Qty: 1 or 2 depending on how many brushless pumps will be used.
P/N: 14-0543, Qty: 1 or 2 depending on how many Ti Automotive E5LM brushless pumps will be used.
P/N: Walbro F90000274 or Walbro GSS342 or AEM 50-1200, Qty: 1 or 2 depending on how many brushed pumps will be used in the surge tank.
P/N: Walbro F90000295, Qty: 1 for the lift pump.
P/N: 14-0143, Qty: 2 or 3 depending on how many Walbro GSS342 or F90000274 or F90000295 pumps will be used. These are NOT needed for AEM 50-1200 pumps.
P/N: 14-0291, Qty: 0 or 1 or 2 depending on how many Walbro GSS342 or AEM 50-1200 pumps will be used.
P/N: 14-0691, Qty: 0 or 1 or 2 depending on how many Walbro F90000274 will be used.
P/N: 17-0051-00, Qty: 1 or 2 depending on how many Walbro GSS342 or AEM 50-1200 pumps will be used.
P/N: 17-0049-00, Qty: 1 or 2 depending on how many Walbro F90000274 pumps will be used.

ELECTRICAL

Bulkheads:
The custom designed anti-rotation stainless steel electrical studs easily handle the high current demand that compact multi-pin bulkhead connectors lack. These serviceable connections are hermetically sealed and impervious to all standard and exotic fuels.

External Wiring:
Because the fuel 'lift' pump supplying the FHST (in the original pump location) will now operate at very low pressure (high flow), the OEM external fuel pump wiring will be sufficient for the lift pump.
High current fuel pump wiring is provided for installing one FHST pump (1 relay, 1 fuse, and all associated wiring and hardware). NOTE: To wire in additional FHST pumps, extra fuses and relays are required. Consider purchasing Radium 17-0031 DIY Wiring Kit HERE for each additional pump.

Sensors:
The factory fuel level sensor is integrated into the OEM sender so a replacement fuel level sensor is provided. This new OEM Nissan sensor has the correct resistance range to work the gauge cluster properly. The original low fuel switch is reused.

Chemical Compatibility:
All in-tank wiring is insulated with chemically resistant ETFE. Electrical hardware is included for the fuel pump(s) and sensors.

FEATURES

-Drop-In Installation
-Anodized Aluminum Construction
-Merged 8AN ORB Female Pump-Out Port
-8AN ORB Female Return Port
-Permits up to 4 Pumps Total 
-Compatible with up to 3 Brushless E5LM Pumps
-High Current Electrical Hardware
-Stainless Steel Hardware and Clamps
-Gasoline, Methanol, and E85 Compliant

FUEL HANGER PLUMBING KIT

20-0703-0X FUEL HANGER PLUMBING KIT, EARLY NISSAN
These plumbing kits include everything required to plumb the fuel system between the Radium FHST and the fuel rail. This kit is NOT designed for the stock fuel rail.

The kit includes -8AN (1/2') feed hose that runs from the fuel pump hanger through the provided fuel filter. A -8AN 90 degree PuskLok hose end is included for connecting to an -8AN male aftermarket fuel rail fitting (not included). A -6AN (3/8') fuel hose runs from the FPR (not included) to the fuel pump hanger return port. A -6AN 90 degree PuskLok hose end is included for connecting to an -6AN male aftermarket FPR fitting (not included). The fuel lines run though billet aluminum fuel brake line retainers. For HICAS retainers go HERE. The fuel lines clear the OEM fuel pump cover and do not require any cutting or drilling to get them past the fuel tank. The feed and/or return hose can be easily modified for installation of an in-line flex fuel sensor. 

The included Radium Engineering fuel filter mounts in the stock filter location using a specifically designed Nissan bolt-on billet mount.

Depending on the kit selected (-03,-05), the fuel filter will be assembled with a choice of different elements. Stainless steel mesh or micro-fiberglass.

INCLUDES
-Radium Universal Fuel Filter (Choose -03 Stainless mesh or -05 Microglass filtration element)
-8AN Fuel Filter Adapter Fittings
-Billet Aluminum Vehicle Specific Filter Mount
-8AN and 6AN PushLok Hose Ends
-8AN Fuel Feed Hose
-6AN Fuel Return Hose
-Fuel Brake Line Retainers and Brackets
-Stainless Steel Hardware