An adjustable fuel pressure regulator kit is a set of parts that lets you set and hold the fuel pressure in a fuel-injected engine’s supply line, and read that pressure on a gauge, so the engine gets consistent fuelling after modifications.
What’s in the box
- 1 x adjustable fuel pressure regulator (red base, black top, adjuster screw with lock nut, vacuum reference nipple)
- 1 x fuel pressure gauge, 0-100 psi scale, approx. 47.5 mm body
- 3 x lengths of black braided fuel hose
- 3 x angled (90-degree style) hose-end fittings
- 3 x straight hose-end fittings with male adapters
- 1 x straight barbed adapter fitting
- 1 x fuel-rail adapter plate
- 5 x O-rings
- 1 x folded steel mounting bracket
Key features
- AN6 fittings, as supplied in the kit
- Pressure adjusted by a screw and lock nut on top of the regulator
- Vacuum reference port on the regulator body
- Gauge reads 0-100 psi
- Red and black anodised-look finish on regulator and fittings
- Fitting sizes in the photos: straight hose end approx. 71.5 mm, barbed adapter approx. 65 mm, angled fittings approx. 76 mm, rail adapter plate approx. 63 mm
Typical uses
- Fuel-injected engines with upgraded fuel pumps or injectors
- Turbocharged and naturally aspirated builds where fuel pressure needs to be set and checked
- Replacing a fixed factory regulator in a return-style fuel system
Installation notes
Fuel system work carries a real fire risk. Depressurise the system, disconnect the battery and work in a ventilated area away from ignition sources. Check every joint for leaks before starting the engine, and set pressure to your engine tuner’s specification with the gauge fitted. Hose lengths, rail adapter fit and plumbing layout depend on the vehicle, so we recommend fitment and pressure setting at the Menin Motorsport workshop in Mayville, Pretoria. Installation instructions may not be included.
Frequently asked questions
What fitting size does this kit use?
The kit uses AN6 fittings.
What range does the gauge read?
The supplied gauge reads from 0 to 100 psi.
Is a mounting bracket included?
Yes, a folded steel mounting bracket is included for the regulator.
