Spool FX-350 HPFP Upgrade | Toyota Supra B58 Gen2
The Spool Performance FX-350 is a top-tier High-Pressure Fuel Pump (HPFP) for the Toyota Supra B58 Gen2 engine. This solution is designed to enable extremely high power levels with direct injection alone, offering up to 350 bar operating pressure and significantly improved fuel capacity.
What is the FX-350?
The FX-350 is a precision-engineered HPFP that combines high pressure, high flow capacity, and excellent durability.
- Operating pressure up to 350 bar / 35 MPa / 5000 psi
- Same volumetric flow as FX-200 but at higher pressure
- Stainless steel construction
- DLC-coated piston and cylinder
- Plug & Play installation
Compatibility with Spool Gen2 high lift cam lobe upgrade:
- Increases total fuel output
- Prevents valve float at high RPMs
Performance
HPFP only:
- Gasoline: approx. 800 whp
- E50: approx. 670 whp
- E85: approx. 600 whp
HPFP + IFX150 Gen2 injectors:
- Gasoline: approx. 900 whp
- E50: approx. 740 whp
- E85: approx. 660 whp
HPFP + IFX150 Gen2 injectors + cam lift mod:
- Gasoline: approx. 1050 whp
- E50: approx. 950 whp
- E85: approx. 800 whp
Intended Use
The FX-350 is specifically designed for high-power DI-only configurations:
- Enables extremely high power without port injection
- Optimized to work with IFX150 Gen2 injectors
- Removes key limitations of the B58 Gen2 fuel system
Installation
- Completely 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 / steel braid / PTFE)
- Plug & Play HPFP adapter harness
Software Requirements
- Requires software changes before commissioning
- Support for various flash platforms is under development
- Spool can assist with implementing the necessary calibration changes
Important Note: LPFP
The low-pressure fuel system is critical:
- Insufficient supply can cause cavitation and damage
- Such damage is not covered by warranty
- An upgraded LPFP is practically essential
Warranty
- Lifetime warranty against manufacturing and material defects