GFB FX-S 750 lph Fuel Pressure Regulator (Bosch Rail Mount)

The GFB FX-S 8051 fuel pressure regulator is a high-performance, compact solution, specifically designed as a direct replacement for Bosch clip-on regulators

Engine Performance Optimization: This regulator is essential for modified engines with larger fuel pumps, especially for turbo setups running on E85, which require high fuel flow.

Simple and effective solution: No need to replace the entire injection rail or install an external regulator thanks to this model which clips directly.

Durable and Reliable Design: Double-layer diaphragm and Teflon valve seat ensure long service life, even under high pressures and extreme conditions.

Direct replacement for Bosch clip-on regulators: Installs easily without having to replace the factory fuel rail, providing a quick and effective solution to increase the capacity of your fuel system.

1/8" NPT Gauge Port: Convenient for installing a fuel pressure gauge or electronic sensor, or simply plugging with the provided cap.

Improved Flow Rate: Double the flow rate of the factory regulator, allowing for increased fuel pump capacity without requiring significant modifications to the existing fuel system.

Fuel Compatibility: Works with various fuel types including gasoline, ethanol and methanol, providing great versatility for high-performance setups.

Dual-Layer, Reinforced Diaphragms: The dual-layer diaphragm provides a burst strength of over 1,000 psi, ensuring exceptional durability and reliability under pressure.

Teflon Copolymer Valve Seat: Unlike traditional regulators with a metal-to-metal valve, the Teflon seat ensures a perfect seal and retains fuel pressure longer after the engine is shut off, making starting easier.

Adjustable Pressure Range: Adjustable static pressures from 1.4 to 5 bar (20 to 72 psi), depending on pump flow and factory return line restrictions.
Unlike Bosch factory fixed pressure regulators, the FX-S allows precise adjustment of fuel pressure for optimal performance.

Vacuum/Boost Sealing: The spring preload screw is sealed with an O-ring, eliminating any risk of leakage under vacuum or boost pressure.

The GFB FX-S 8051 is a fuel pressure regulator designed to meet the demands of high-performance fuel systems, while perfectly matching Bosch factory fuel rails. It offers industry-leading performance with increased flow capacity, improved sealing, and exceptional durability, all in a compact, easy-to-install package.