Radium - Fuel Pump Hanger - Toyota Supra A90 MK5

Overview

The Radium Engineering fuel pump hanger is an excellent solution for increasing fuel flow on the 2020+ Toyota GR Supra. The kit leaves the entire OEM direct injection system intact. However, it permits one additional independent 39mm fuel pump, specifically for auxiliary fuel such as port injection. NOTE: The modification is NOT compatible with the larger 39/50 DCCS pumps (Walbro F900002XX) but does have all the provisions for a brushless pump.

The following components are retained and operate exactly how BMW/Toyota intended:

• OEM brushless fuel pump (for direct injection)
• OEM fuel pressure regulator (for direct injection)
• OEM pre pump filter (for direct injection)

Features

• Drop-In Installation
• Adds an additional Fuel Pump
• High Current Electrical Hardware
• Compatibility with Popular Fuel Pumps
• Anodized Aluminum Construction
• Gasoline, Methanol, Ethanol Compliant
• Fuel Resistant Tubing and Wiring
• Stainless Steel Hardware

Preventing fuel starvation

Several systems work together to move fuel into the collector basket and keep it full at all times. This ensures that the pumps have adequate fuel available, even during aggressive driving. The internal pumps are supplied with fuel from 3 different sources: the venturi jet pump fuel scavenged from the passive side of the tank, the returned fuel from the fuel pressure regulators (direct injection FPR and port injection FPR), and the one-way fill valve on the bottom of the OEM collector basket. This valve allow fuel in, but not out.

Plumbing

Port Injection Feed Port. The outlet on the fuel hat is female threaded for 8AN ORB (3/4-16 O-ring). A male 8AN low profile banjo fitting comes preinstalled. However, this could always be changed using an 8AN ORB fitting. See compatible Radium B58TU port injection system.

Port Injection Return Port. The inlet on the fuel hat is female threaded for 8AN ORB (3/4-16 O-ring). A male 6AN low profile banjo fitting comes preinstalled. However, this could always be changed using an 8AN ORB fitting.See compatible Radium B58TU port injection system.

Direct Injection Feed Port. An outlet fitting is provided that mimics the SAE quick connect on the OEM fuel hat.



Electrical

The custom designed stainless 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. Non conductive anodized aluminum acorn nuts are provided to prevent any accidental short circuiting. Electrical hardware is included for the fuel pumps and OEM level sender. Furthermore, the in-tank wiring is insulated with high quality chemically resistant ETFE.



NOTE: External wiring for the additional port injection pump is not included. See the Radium Universal fuel pump wiring kits available here.

Pump compatibility

Brushed and brushless fuel pump options are compatible with this fuel pump hanger. To choose the correct fuel pump, check with CSG or Radium. The system is suited, but not limited, to the following fuel pumps:

• Walbro GSS342 255lph - requires 14-0143 filter (1 per pump)
• AEM 50-1200 E85 - pump kit includes filter
• Ti BKS1001 (brushless) - pump kit includes filter
• ID BPC-1100 (brushless) - pump kit includes filter

NOTE: Fuel pumps larger than 39mm such as Walbro F900002XX, Deatschwerks DW400, Bosch BR540, etc. are not compatible.

Optional Plumbing Kits

20-0761-0X FUEL HANGER PLUMBING KIT, MK5

These plumbing kits include everything required to plumb the fuel system between the Radium fuel pump hanger (shown below) to a port injection fuel rail.



A -8AN 90 degree PuskLok hose end (shown below left) is included for connecting to an -8AN male port injection fuel rail fitting (not included).



A -6AN 90 degree PuskLok hose end (below) is included for connecting to an -6AN male aftermarket FPR fitting (not included). A -6AN (3/8") fuel hose runs to the fuel pump hanger return port.



The feed and/or return hose can be easily modified for installation of an in-line flex fuel sensor. Furthermore, the hoses run though billet aluminum fuel line retainers.



As shown below, a special retainer is provided to prevent the lines from contacting the driveshaft and exhaust when crossing over the tunnel.



An -8AN (1/2") feed hose runs from the fuel pump hanger through the provided fuel filter using a specifically designed MK5 Supra bolt-on billet mount as shown below.



Depending on the kit selected (-03,-05), the fuel filter will be assembled with a choice of different elements. Go HERE for more fuel filter element information.

Includes

• Fuel Filter (-03 Stainless or -05 Microglass)
• 8AN Fuel Filter Adapter Fittings
• Billet Aluminum MK5 Supra Filter Mount
• 8AN and 6AN PushLok Hose Ends
• 8AN Fuel Feed Hose
• 6AN Fuel Return Hose
• Fuel Line Retainers
• Stainless Steel Hardware