Radium: Fuel Hanger Surge Tank : Nissan 350Z/G35
COMPATIBILITY
NISSAN 350Z -Jan04 - Dec08 / * Jan02 - Jan04
NISSAN FAIRLADY Z - Jan04 - Dec08 / * Jan02 - Jan04
NISSAN SKYLINE SEDAN - Jan01 - Dec07
INFINITI G35 SEDAN - Jan01 - Dec07
NISSAN SKYLINE COUPE - Mar03 - Dec07 / *J an01 - Mar03
INFINITI G35 COUPE - Mar03 - Dec07 / *Jan01 - Mar03
*EARLY 2 DOOR MODELS CAME WITH NISSAN 25060-CD010 LEVEL SENSOR.
THESE VEHICLES REQUIRE EITHER 1 OF THE 2 OPTIONS LISTED BELOW:
Option 1: Early Model Fuel Level Adapter, 350Z G35 (described below)
Option 2: 2004+ Nissan Fuel Level Sensor, 25060-AL511 or 25060-AL51A
OVERVIEW
The Radium Engineering FHST (fuel hanger surge tank) is the ultimate solution for fuel starvation issues in the Nissan Z33/V35 chassis. Due to the saddle-bag style OEM fuel tank and insufficient baffling, fuel starvation is common when the vehicle is driven aggressively, such as on a track. This results in unstable fuel pressure and possible engine damage from running too lean. A stand-alone surge tank is an excellent device for eliminating fuel starvation issues. But installing a stand-alone FST is difficult specifically in the 350Z due to the open-cabin design, and lack of a firewall between the driver and the rear of the vehicle. So Radium Engineering chose to create a fully functional fuel surge tank INSIDE the OEM tank.
The Radium FHST can be used with 1 or 2 aftermarket pumps and supplies 1:1 regulated fuel to the engine. No grinding, bending, or modification of the vehicle's sheet metal is required. Furthermore, the system is compatible with alternative fuels such as E85.
HOW THE FHST WORKS
The OEM fuel module contains the pump, fuel pressure regulator, filter and has 2 venturi jet pumps that supply fuel from both sides of the tank. However, the OEM fuel module still suffers from slosh resulting in an interruption of the engine's fuel supply.
The Radium FHST is the best solution in preventing fuel starvation. It installs in the opposite side of the fuel tank from the OEM fuel module and works together to keep fuel delivery consistent in all conditions. The OEM fuel module receives an upgraded fuel pump which is used to send fuel to the Radium FHST keeping the collector box filled. The OEM venturi jet pumps will still function as designed scavenging fuel from the bottom of the tank. The FHST pump(s) are used to supply fuel to the engine through an integrated fuel pressure regulator. As described below, the FHST pump(s) are supplied with fuel from 3 different sources: the pump in the OEM fuel module, the integrated fuel pressure regulator return, and 355LPH one-way fill valves on the bottom of the collector box that allows fuel in, but not out.
PUMP COMPATIBILITY
Brushed and brushless fuel pump options are available for the Radium 370Z/G35 Coupe FHST. The system is suited, but not limited, to the following fuel pumps:
• Walbro F90000267 E85 / Walbro F90000274 E85 / Walbro F90000285 E85 / Walbro GSS342 255lph
• AEM 50-1200 E85
• Deatschwerks DW440 (brushless)
INCLUDED
The comprehensive kit includes all parts necessary to complete the installation including a pressure gauge, external fuel hose, fittings, electrical fuse, relay etc.
Radium P/N: 20-0830-00 shown above. Radium P/N: 20-0832-00 shown below.
20-0596 - EARLY MODEL FUEL LEVEL ADAPTER, 350Z G35
As shown below, this kit is necessary to adapt the early style OEM level sensor to the stainless steel bracket included in the FHST.
COMPATIBILITY
NISSAN 350Z - Jan02 - Jan04
NISSAN FAIRLADY Z - Jan02 - Jan04
NISSAN SKYLINE COUPE - Jan01 - Mar03
INFINITI G35 COUPE - Jan01 - Mar03
20-0806 - FUEL HANGER FPR BLOCK-OFF
This new Radium fuel pump hanger can be converted from a built-in regulator dead head system, to a return style system. We understand some users want to run an engine bay mounted regulator with a return line back to the tank. This kit makes that possible. The parts in the kit disable the built-in regulator allowing the use of an external regulator elsewhere in the system. The hanger top plate features a return port that can be used for the return line from the external regulator.
Stock images used. Product may vary.