Carburettor Electric Fuel Pump 2-4 PSI 28 GPH Ultra-Quiet Rotary Vane Pump

DO NOT Use with a Dead-Head Regulator (Use a Bypass Regulator if Needed): This pump is engineered to output between 4 and 7 PSI, which matches the factory-specified operating pressure for most standard carburetors (Holley, Edelbrock, Carter), meaning it usually does not require an external regulator. Using a dead-head regulator creates a permanent restriction that chokes the line 100% of the time, forcing the internal rotary vanes to violently churn the same trapped liquid until the pump overheats and seizes. (Note: A carburetor's internal needle and seat are safe because they constantly cycle open and closed, allowing fresh fuel to flush through). If your specific carburettor requires a lower pressure (such as vintage 1950s/60s setups that need 4.5 to 5.5 PSI), you MUST use a Bypass (Return-Style) Regulator. A bypass regulator safely drops the pressure to your carburetor while diverting the excess fuel back to the tank, keeping the pump cool, lubricated, and protected.

Mount Low and Near the Tank: This is strictly a gravity-fed pusher pump, not a puller. It possesses virtually no suction capability and must be mounted within 30cm (12") of the fuel tank, below the lowest fuel level. Mounting this pump too high or in the engine bay forces it to fight gravity to siphon fuel. The combined strain of "pulling" fuel and fighting system resistance will instantly burn out the solid-state circuitry.

Always Use a Dedicated 12V Relay: Pushing fuel creates mechanical resistance that naturally increases the pump’s electrical current draw. If you wire the pump directly to an old ignition switch or a weak factory circuit, a severe voltage drop will occur. This causes the amperage to spike, generating massive electrical heat that fries the internal electronics. Always wire the pump with a clean, dedicated 12V relay setup such as GPP-2025 (sold separately)

Never Omit the Pre-Filter: This pump utilises a precision internal shuttle mechanism. It is mandatory to install the included mesh pre-filter on the inlet side of the pump. If this filter is omitted, microscopic tank debris, rust, or fuel scale will enter the pump head and physically jam the internal shuttle, causing the motor to lock up and burn out in minutes.