20-1170 FUEL PUMP HANGER, BMW E36
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. 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. 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.
PUMP COMPATIBILITY
This hanger 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. The
following pumps are compatible:
(1)These pumps do not feature an integrated check valve. If a check valve is necessary, purchase 20-1534 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.
PRV VENTURI JET PUMP
The OEM venturi jet pump is replaced with an innovative Radium
Engineering variation. The venturi jet pump has a built-in pressure
relief valve to control excessive fuel return flow. This is a common
problem when using high flow pump(s) at low loads. This excessive
pressure would pop-off the OEM venturi jet pump connection and prevent
fuel transfer, ultimately leaving the vehicle stranded. The PRV venturi
jet pump also permits low static fuel pressures.
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.
- Universal fuel pump wiring kits can be found HERE. Select one for each aftermarket pump.
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
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