20-1170 FUEL PUMP HANGER COMPATIBILITY 90-99 BMW E36 316i 90-98 BMW E36 318i 92-98 BMW E36 318is 94-00 BMW E36 318ti 91-98 BMW E36 320i 95-98 BMW E36 323i 91-95 BMW E36 325i 95-98 BMW E36 328i 92-99 BMW E36 M3 OVERVIEW This Radium Engineering fuel hanger replaces both RH and LH fuel hat assemblies. It is compatible with 1 or 2 aftermarket fuel pumps. The kit reuses both passive side and active side fuel level sensors. It is also keeps a true saddle tank crossover system using new improved components. No cutting or modifying of the vehicle is required for installation. FITTINGS The merged fuel pump outlet is tapped for 10AN ORB (7/8"-14) female threads on the top plate. However, an SAE quick connecter barb is provided to connect to the OEM feed line. The fuel return inlet is tapped for 10AN ORB (7/8"-14) female threads on the top plate. However, an 8.5mm barbed adapter is provided to connect to the OEM return line. All fittings are machined low enough to clear the surrounding area. COMPATIBLE FUEL PUMPS The 20-1170 is configured to be used with 1 or 2 aftermarket fuel pumps. These can be 2-wire brushed fuel pumps or 3-4 wire brushless 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 *Ti Automotive E5LM Protec 11928 / Fuelab 49614 Deatschwerks DW440 Deatschwerks DW810 *These pumps do not feature an integrated check valve. If a check valve is necessary, purchase 20-1534 (separately) to replace the fitting(s) under the fuel hat. 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(s) have adequate fuel available, even during aggressive driving. The integrated fuel tank collector is supplied with fuel from 3 different sources: The OEM collector bowl has a labyrinth. This keeps fuel from leaving the collector bowl when cornering. The constant low pressure returning fuel from the regulator activates the venturi jet pump siphon and also fills the collector bowl. The crossover fuel scavenged from the passive side of the tank from the venturi jet pump siphon is constantly filling the collector bowl. ELECTRICAL The custom designed stainless steel electrical studs easily handle the high current demand that compact multi-pin bulkhead connectors lack. They have an anti-rotation feature that prevents the terminals from spinning. 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 Single pump installations can re-use the OEM fuel pump wiring. It is recommended to upgrade OEM wiring to ensure the single pump is receiving full power and operating at maximum potential. If using a second pump, a new dedicated relay and fuse pump MUST be used. FEATURES Drop-In Installation Aluminum and Stainless Construction PRV Venturi Jet Pump Siphon Merged 10AN ORB Female Pump-Out Port Compatible with Various Pumps Brushless Fuel Pump Capable Fuel Pump Filter Socks Included Capable of Running 1 or 2 Fuel Pumps Anti-Rotation Electrical Terminals High Current Electrical Hardware Gas, Methanol, and E85 Compliant Instruction PDF