Radium Engineering BMW E9x 3-Series (N54/N55) Fuel Surge Tank Regulated (Pump Not Included)
20-1972
Walbro F90000267
Walbro F90000274
Walbro F90000285
COMPATIBILITY
BMW E90 3-series (N54 or N55)
BMW E91 3-series (N54 or N55)
BMW E92 3-series (N54 or N55)
BMW E93 3-series (N54 or N55)
NOTES:
1. This system is also compatible with the E90/91/92/93 M3 fuel tank. However, because the M3 uses a brushless fuel pump, the installer must devise a solution for triggering the new surge tank fuel pump(s). This is not covered in the installation instructions.
2. This system is NOT compatible with BMW 1-series vehicles (E81/E82/E86/E87).
Overview
The Radium Fuel Hanger Surge Tank is a revolutionary way to eliminate fuel starvation that can occur during high performance driving, while also providing a way to upgrade the fuel pumps for high-horsepower engine modifications. This system installs inside the BMW fuel tank on the opposite side of the factory fuel pump and can hold one or two high-flow aftermarket fuel pumps. The OEM fuel pump is used to pump fuel into the FHST, while the pumps inside the FHST supply fuel to the engine. The system is E85 compatible and does not require any permanent modifications for installation.
Read below to see how the FHST works.
