Variable Speed Fuel Pump Controlled Spur 3.5 GPM

The Variable Speed Fuel Pump Controlled Spur 3.5 GPM by AEROMOTIVE is engineered for automotive enthusiasts and professional mechanics building high-performance fuel systems. This electric fuel pump controller enables precise fuel delivery regulation across a wide RPM range, making it essential for engine builds where fuel pressure consistency directly impacts tune stability and power output. Whether you're tuning a carbureted street engine, a naturally aspirated track car, or a boosted platform, variable speed control eliminates pressure spikes and unwanted surges that compromise carburetor or fuel injection tuning.

This controller modulates pump speed based on demand, delivering 3.5 gallons per minute at controlled pressure rather than running the pump at full speed constantly. The spur-gear design provides reliable, low-noise operation in tight engine compartments while the intelligent speed regulation reduces heat generation, extending pump and fuel system longevity. The compact 5.4 x 4.3 x 9.7 inch footprint and lightweight 5.7 lbs make installation feasible in space-constrained builds, whether mounted under the car, in the engine bay, or integrated into a fuel cell setup. By matching pump output to actual engine demand, you'll see improved fuel economy during cruise conditions and predictable pressure curves during acceleration and boost events.

Mechanics and builders benefit most from this controller when transitioning from mechanical to electronic fuel management or when retrofitting carbureted engines with EFI systems. It's ideal for vintage hot rods, custom builds, and performance applications where OEM fuel system components lack the precision control needed for tuning success. Installation typically involves wiring the controller to an engine speed sensor input and fuel pump relay circuit; detailed instructions ensure proper ground routing and fusing for safe operation. Compatibility with most standard electric fuel pumps and straightforward integration with both carburetor and fuel injection platforms makes this a versatile upgrade for serious engine builders and street enthusiasts alike.