Product Description
Radium Single or Dual Fuel Pump System - 03-13 Corvette
20-0980 FUEL PUMP HANGER
COMPATIBILITY
*Mid 2003-2013 Chevrolet Corvette
*Compatible with vehicles after VIN 35114930 (manufactured November 2002).
OVERVIEW
This Radium Engineering fuel hanger replaces the stock fuel pump assembly. No cutting or modifying of the vehicle is required for installation.
REQUIREMENTS: A fuel pressure regulator and external (low micron) fuel filter must be purchased separately. Optionally, the plumbing kits (see below) include both of these items.
FITTINGS
The fuel pump outlet is tapped for 10AN ORB (7/8"-14) female threads on the top plate. However, an 8AN male adapter is provided.
The fuel return inlet is tapped for 8AN ORB (3/4"-16) female threads on the top plate. However, an 6AN male adapter is provided. 
All fittings are machined low enough to clear the surrounding area.
COMPATIBLE FUEL PUMPS
The 20-0980 is configured to be used with 1 aftermarket fuel pump. NOTE: If 2 aftermarket pumps are required, the supplementary "dual pump add-on" (20-0937 listed below) would also be required. Choosing the best fuel pump is based on the expected engine power output, fuel type (gasoline, E85, etc.), and fuel pressure.
AEM 50-1000
AEM 50-1200
Walbro GSS342
Walbro F90000267
Walbro F90000274
Walbro F90000285
*Walbro F90000295 (a check valve is provided)
*Ti Automotive E5LM (a check valve is provided)
*These pumps do not feature an integrated check valve. Provided in this kit is a high flow check valve that secures to the outlet of these specific pumps.
FUEL STARVATION PROTECTION
Several mechanisms work together to move fuel into the integrated collector and keep it full at all times. This ensures the pump has adequate fuel available, even during aggressive driving. The internal pump is supplied with fuel from 3 different sources:
1. The consistent crossover fuel scavenged from the passive side of the fuel tank.
2. The constant low pressure returning fuel from the fuel pressure regulator.
3. As shown below, the two 1-way fill valves on the bottom of the collector allow fuel in, but not out. Each 1-way valve flows 355LPH keeping the collector as full as the current fuel tank level.
ELECTRICAL
The custom designed 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. Non-conductive anodized aluminum acorn nuts are provided to prevent any accidental short circuiting. Furthermore, the in-tank wiring is insulated with high quality chemically resistant ETFE.
NOTES
1. Single fuel pump installations can re-use the OEM fuel pump wiring.
2. It is recommended to upgrade OEM wiring to ensure the pumps are receiving full power and operating at maximum potential.
3. Universal fuel pump wiring kits can be found HERE. Select one for each aftermarket pump.
FEATURES
-Drop-In Installation
-Reuses OEM Crossover Jet Pump Siphon
-Collector provided to prevent Fuel Starvation
-Merged 10AN ORB Female Pump-Out Port
-Compatible with Various Pumps
-Brushless Fuel Pump Capable
-Fuel Pump Filter Socks Included
-Capable of 2 Pumps with Add-On
-High Current Electrical Hardware
-Gasoline, Methanol, and E85 Compliant
20-0937 DUAL PUMP ADD-ON
COMPATIBILITY
*Mid 2003-2013 Chevrolet Corvette
*Compatible with vehicles after VIN 35114930 (manufactured November 2002).
OVERVIEW
This is a dual pump add-on to the fuel hanger listed above. It includes another "independent" collector specific for pump 2.
The architecture of the Corvette fuel tank is very unique. Because the opening is so small, 2 pumps cannot fit through at the same time. Each pump is sent into the tank one by one. The use of SAE quick connectors makes the installation process much easier.
Both fuel pumps outlets merge into the single 10AN ORB outlet of the CNC machined fuel hat. And because of the check valves on the pump outlets, fuel pump staging is permitted. 
The provided in-tank wiring is insulated with high quality chemically resistant ETFE.
NOTE: Part number 20-0980 must be purchased to use this add-on.
COMPATIBLE FUEL PUMPS
Choosing the best fuel pump is based on the expected engine power output, fuel type (gasoline, E85, etc.), and fuel pressure.
AEM 50-1000
AEM 50-1200
Walbro GSS342
Walbro F90000267
Walbro F90000274
Walbro F90000285
*Walbro F90000295 (a check valve is provided)
*Ti Automotive E5LM (a check valve is provided)
*These pumps do not feature an integrated check valve. Provided in this kit is a high flow check valve that secures to the outlet of these specific pumps.
FUEL STARVATION PROTECTION
Several mechanisms work together to move fuel into the integrated collector and keep it full at all times. This ensures the pump has adequate fuel available, even during aggressive driving. The internal pump is supplied with fuel from 2 different sources:
1. The consistent crossover fuel scavenged from the passive side of the fuel tank. NOTE: The fuel return from the fuel pressure regulator will still feed the pump 1 collector.
2. The two 1-way fill valves on the bottom of the collector that allow fuel in, but not out. Each 1-way valve flows 355LPH keeping the collector as full as the current fuel tank level.
FEATURES
-Drop-In Installation
-Collector provided to prevent Fuel Starvation
-Compatible with Various Pumps
-Brushless Fuel Pump Capable
-Fuel Pump Filter Socks Included
-Gasoline, Methanol, and E85 Compliant
-Plug and Play Installation
-Bolt-On Stainless Steel Pump Bracket
NOTE: this is also a compatible dual pump add-on for the C7 Corvette fuel hanger when released.
PLUMBING KITS
COMPATIBILITY
*Mid 2003-2008 Chevrolet Corvette (M/T Only)
2009-2013 Chevrolet Corvette (M/T Only)
*Compatible with vehicles after VIN 35114930 (manufactured November 2002).
These kits provide all necessary plumbing to and from the engine including a fuel filter, fuel pressure regulator, fuel lines, adapter fittings, and mounting hardware.
From the fuel hanger pump outlet, 8AN PTFE fuel hose runs down to a chassis-mounted fuel filter near the fuel tank. Depending on the kit selected (-03,-05), the fuel filter will be assembled with a choice of different elements (stainless or microglass). Go HERE for more filter element information. 
From the fuel filter another 8AN PTFE fuel hose runs through the tunnel parallel to the torque tube and into the fuel pressure regulator (FPR). The hose is secured with stainless steel cushioned clamps. Furthermore, thermal insulation is included to protect the hose from the exhaust system.
As shown above, the FPR secures to a billet aluminum mount near the brake master cylinder. NOTE: Because the brake master cylinder changed between 2008 and 2009, the mounting bracket changed accordingly (see P/Ns). The FPR has multiple high pressure ports. A SAE quick connect adapter is provided for connecting the FPR to the OEM fuel rail using the stock fuel feed line. NOTE: If aftermarket fuel rails are used, Radium Engineering recommends feeding each of the fuel rail front ports independently and plugging the rear ports. Because of engine variances, no parts are included for this procedure.
A fuel pressure gauge and adapter fittings are provided to monitor and properly calibrate the FPR.
The OEM fuel feed "hard" line is repurposed as a return line. Adapters fittings and hose are provided for connecting both ends of the return line (FPR and Fuel Hanger).
INCLUDES
-MPR-RA Fuel Pressure Regulator
-Fuel Pressure Gauge
-Filter (-03 Stainless or -05 Microglass)
-Corvette Fuel Filter Mount
-Corvette FPR Mount
-8AN Fuel Filter Adapter Fittings
-8AN PTFE Fuel Feed Hoses
-6AN Fuel Return Hose
-6AN PushLok Hose Ends
-Thermal Insulating Sleeve
-Connection to OEM Rails
-Fuel Feed Line Retainers
-Stainless Steel Hardware
