Aeromotive's "Stealth 340" LPH is a high-output, in-tank, electric fuel pump that fits most popular EFI applications, including most BMWs.
The 340 is a compact, lightweight pump that bolts into most existing hanger assemblies and is capable of delivering a huge amount of fuel to your motor, or in-line pump.
What sets the Stealth 340 apart is its superior flow throughout a wide pressure range in its compact body. Compared to a typical direct replacement size 255LPH at 40 psi, the 340 LPH boasts over 30% more flow, making this pump ideal for applications requiring high fuel flow while retaining factory wiring and mounting provisions available in the Original Equipment (O.E.) configuration. This pump can typically deliver 100% more fuel than most factory issue pumps.
• P/N 11540
• Fits most vehicles where popular aftermarket pumps are applicable
• Center Inlet
• Includes universal filter sock – may not fit in some applications (see OEM filter replacement recommendations)
• Designed for in-tank use only
• Can be used in Carbureted or EFI applications
• Turbine pump mechanism increases durability and can be used in pulse modulated applications.
The 340 is rated at a true 340LPH is also ideal for use on BMWs that are converted to alternative fuels and/or have big power upgrades making more than 500BHP. We offer the 'center' pickup version as this draws from directly below where it is mounted as most BMWs have this configuration. This is also a reliable high performance choice and can be used on daily drivers or race cars.
Tech Notes:
- This is very close to a direct replacement pump for many 1987 and on BMW applications, however, some slight mods are typically needed to the pump housings, etc.
Accordingly, these pumps are sold for custom install and without application-specific instructions.
- While this pump is capable of delivering huge flow, keep in mind standard BMW fuel lines are only so large. Larger lines and bigger fuel rail may be needed for your application, typically those over 500 wheel HP on the 4 and 6 cylinder apps.
- Make sure this pump sees as much electrical current as possible and test for solid voltage during install, especially on older pre-2000 production models.
- While this pump is compatible with E85, we remind you that E85 has very high solvent properties and can quickly cause particulates from the fuel system to become loose and lodge in the pump. If you will be running E85 with an aftermarket pump, manufacturers strongly suggest adding additional fuel filters to the system.