GFB FX-S Fuel Pressure Regulator
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GFB FX-S 1/8" NPT Fuel Pressure Regulator
GFB built its reputation on precision engineered EFI hardware, and the FX-S fuel pressure regulator (SKU 8050) continues that standard. Designed as a factory-like replacement with serious upgrade potential, it uses a Teflon co-polymer valve seat instead of the usual metal-to-metal setup, giving more reliable sealing and easier startup after the engine's been switched off.
This listing covers the GFB FX-S 1/8" NPT Fuel Pressure Regulator, a universal fitment unit suited to petrol, ethanol, methanol and diesel fuel systems. Its multiple port layout makes it adaptable to parallel fuel rail setups or deadhead return-less configurations.
Key Features
- 1:1 fuel pressure rise rate for consistent response under boost
- Double layer, double reinforced diaphragm with burst strength exceeding 6.9 MPa (1000 psi)
- Teflon co-polymer seat with stainless steel valve for positive pressure retention after shut down
- O-ring sealed spring pre-load adjustment screw — no vacuum or boost leaks
- Adjustable static pressure range from 193 kPa to 496 kPa (28-72 psi)
- Fully serviceable design
- Four 1/8" NPT ports for fuel inlet, gauge, or ECU sensor combinations, plus one 1/8" NPT return port
Specifications, port configurations, and installation notes are provided in the tabs above. Please confirm your fuel system layout and pressure requirements before ordering.
Not sure if this regulator suits your build? Contact our team at sales@chicaneaustralia.com.au for expert advice.
Vehicle Compatibility
Universal fitment — verify dimensions before ordering.
Technical Specifications
| Spec | Value |
|---|---|
| Fuel Pressure Rise Rate | 1:1 |
| Static Pressure Adjustment Range | 193–496 kPa (28–72 psi) |
| Diaphragm Burst Strength | Exceeds 6895 kPa (1000 psi) |
| Diaphragm Construction | Double layer, double reinforced |
| Valve Seat Material | Teflon co-polymer |
| Valve Material | Stainless steel |
| Spring Pre-load Adjustment | O-ring sealed adjustment screw |
| Fuel Inlet/Gauge Ports | 4x 1/8 in NPT |
| Return Port | 1x 1/8 in NPT |
| Serviceable | Yes |
No instructions available for this product.

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