The GFB FX-R is a race-grade adjustable fuel pressure regulator built for high-flow EFI systems supporting up to 1500hp. Its -6AN porting and 1300 lph flow capacity make it ideal for big-power forced-induction builds.
The FX-R uses a double-reinforced diaphragm with a burst strength exceeding 500psi, a Teflon co-polymer seat with a spherical stainless valve, and an o-ring sealed adjustment screw for stable, repeatable pressure control with a 1:1 rise rate.
Specifications
| Brand | Go Fast Bits |
| Series | FX-R |
| Type | Adjustable fuel pressure regulator |
| Ports | 2x -6AN inlet, 1x -6AN return, 2x 1/8in NPT gauge/sensor |
| Flow | Up to 1300 lph @ 25psi |
| Base Pressure | 28-72 psi (2-5 bar), adjustable |
| Rise Rate | 1:1 |
| Diaphragm | Double-reinforced, 500+ psi burst |
| System Capacity | Up to 1500 hp |
| Fuel Compatibility | All fuels incl. E85 |
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