Spool FX-350 HPFP Upgrade | BMW B48 Gen.2
The Spool Performance FX-350 represents the latest development in high-pressure fuel pumps for BMW B48 Gen2 engines. This pump is specifically designed for high-power direct injection solutions, offering up to 350 bar operating pressure and maximum performance without the need for port injection.
What is the FX-350?
The FX-350 is a top-of-the-line HPFP constructed from stainless steel and equipped with a high-precision DLC-coated piston and cylinder. The pump provides the same volumetric flow as the FX-200 but at a significantly higher pressure.
- Operating pressure up to 350 bar / 35 MPa / 5000 psi
- Stainless steel construction + DLC-coated internals
- Optimized for high RPMs and loads
- Plug & Play installation
When combined with Spool's Gen2 high lift cam lobe upgrade:
- Further increases total fuel output
- Specially designed springs prevent valve float at high RPMs
Performance and Application
The FX-350 is specifically designed for high-power DI-only (direct injection) setups:
- Enables very high power without supplementary injection
- Works optimally in conjunction with Spool IFX350 Gen2 DI injectors
- Removes a significant limitation from the B48 Gen2 fuel system
Installation
- Fully Plug & Play
- Includes all necessary components for easy and clean installation
Package Contents
- Spool FX-350 High-Pressure Fuel Pump
- Mounting bracket
- Pump alignment tool
- Triple-layer low-pressure hose (nylon / stainless steel braid / PTFE)
- Plug & Play HPFP adapter harness
Software Requirements
Operating the pump requires software modifications:
- Calibration is needed before commissioning
- Spool can assist with implementing the necessary changes
- Support for various flash platforms is under development
Important Note: LPFP
The low-pressure fuel system is critical:
- Insufficient supply can cause cavitation and pump damage
- Such damages are not covered by warranty
- An upgraded LPFP is practically mandatory with this pump
Warranty
- Lifetime warranty against manufacturing and material defects