Marine Fuel Pressure Regulators

Hardin Marine billet carbureted fuel pressure regulators are true billet regulators. A convoluted diaphragm maximizes piston stroke and increases flow - without stressing the diaphragm.  Every carbureted regulator incorporates a poppet design unique to that regulator, and they fabricate the diaphragms from a proprietary elastomer material. Precision engineering and manufacturing translate into tight fuel pressure control.

ADJUSTABLE EFI/MPI REGULATOR FOR LATE MODEL MERCRUISER
Hardin Marine just introduced the MerCruiser 454/502 EFI Systems application to its line of high performance Flow Command adjustable fuel flow modifiers. The billet aluminum Flow Command is designed specifically for stock or modified 454/502 EFI systems. The Flow Command allows modification of the fuel flow rate to properly tune the air flow ratio. Ideal for use with high flow exhausts and intakes, the Flow Command incorporates these exclusive feature:

• Bolt-on adjustable modifier for stock fuel regulators
• 6061-T billet aluminum case, CNC machined
• Allows pressure adjustments from 25 to 65 PSI
• Machined to exacting tolerances

Aeromotive carbureted fuel pressure regulators are true billet regulators. A convoluted diaphragm maximizes piston stroke and increases flow - without stressing the diaphragm. Every Aeromotive carbureted regulator incorporates a poppet design unique to that regulator, and we fabricate the diaphragms from our proprietary elastomer material. Precision engineering and manufacturing translate into tight fuel pressure control.

For those of you unfamiliar with boost referencing of a fuel system, well it's the ultimate way to meet fuel supply demands on a supercharged engine. By connecting a hose from your intake manifold to the top fitting of this regulator you can control fuel pressure on demand. You see for every pound of boost your engine generates it will allow the regulator to increase fuel pressure by the pound. These features have been used by professional race teams for years.

The new A1000 Bypass Regulator was designed specifically for high horsepower EFI engines. The all billet construction and boost reference capabilities matched with the 1000 Superpump make for the most powerful fuel supply system you can buy.

This is Holley's most famous carbureted style fuel pressure regulator. The regulator features 3/8" NPT ports and includes a mounting bracket for attachment. This regulator allows you to adjust from 4-1/4 to 9 PSI.