EVIL ENERGY 290LPH High Pressure External Electric Fuel Injection Pump 12V-13.5V - Reliable High-Performance for EFI Tuned/Modified Cars (AN Adapter Optional)

Q: What type of fuel pump is the EVIL ENERGY 290 LPH pump?

A: The EVIL ENERGY 290 LPH pump is a 12V external fuel injection pump designed for electronic fuel injection systems. It is installed outside the fuel tank and operates as an inline EFI fuel pump. It is a practical option for buyers looking for an external fuel pump for fuel injection applications where the required flow, pressure, voltage, and connection sizes match the pump’s specifications.

Q: What type of fuel is this EFI fuel pump designed for?

A: This EFI fuel pump is primarily designed and optimized for gasoline. Its stated performance and durability specifications are based on gasoline operation. Although it may operate with diesel, using diesel can reduce the pump’s service life, so gasoline is recommended for the best performance and longevity. For E85, ethanol blends, methanol, or race fuel, confirm material compatibility before installation.

Q: Is this fuel injection fuel pump compatible with every vehicle?

A: No. This fuel injection fuel pump is intended for vehicles equipped with a 12–13.5V DC electronic fuel injection system. Before ordering, verify the vehicle’s required fuel flow, operating pressure, electrical capacity, hose size, and fitting configuration.

This inline fuel pump for fuel injection is not a universal direct-fit replacement. It is not recommended for a carbureted fuel system unless the entire system, including the fuel pressure regulator, is properly configured for the pump’s pressure and flow.

Q: What flow rate and current draw can I expect?

A: Under the specified test conditions, the pump produced the following results:

• 275–290 LPH at 5.9–6.0 PSI, drawing 8.0–8.9 A
• 185–217 LPH at 42 PSI, drawing 11.0–11.3 A
• 115–145 LPH at 70 PSI, drawing 12.5–13.5 A
• 30–95 LPH at 80–87 PSI, drawing 14.0–14.5 A

Like other EFI fuel pumps, its flow rate decreases as fuel pressure increases. Actual performance may also vary depending on supply voltage, fuel type, filter condition, hose routing, and other fuel-system restrictions.

Q: How much horsepower can the 290 LPH fuel pump support?

A: A reliable horsepower rating cannot be determined from the maximum 290 LPH figure alone. Supported horsepower depends on the engine’s fuel consumption, naturally aspirated or boosted configuration, fuel type, base fuel pressure, boost pressure, injector size, and electrical voltage.

Select the pump according to the flow available at your system’s actual operating pressure, not only its maximum free-flow rating.

Q: Are additional fittings or adapters required?

A: The kit includes two silver 3/8-inch barb/AN6 adapters for connecting compatible rubber fuel hose, so many installations will not require separate pump adapters.

However, additional hose, clamps, wiring components, reducers, or vehicle-specific fittings may still be needed. Check your fuel-line size and connection type before ordering.

Q: Should a fuel filter be installed with this EFI fuel pump?

A: Yes. Install a 100-micron pre-filter before the pump inlet to help prevent debris from damaging the pump’s internal components. A clean filter supports consistent flow and can extend the service life of the external EFI fuel pump.

Inspect and replace the filter regularly. A restricted filter can reduce fuel flow and increase the pump’s workload.

Q: Is the external fuel pump difficult to install?

A: Installation is relatively straightforward for someone familiar with automotive fuel and electrical systems. The package includes two black mounting brackets for securing the pump outside the fuel tank to the vehicle frame or another suitable location.

Install the external fuel injection pump securely, observe the correct flow direction, use fuel-compatible hoses and fittings, and keep it away from excessive heat and moving components. Correct wiring, fuse protection, grounding, and leak testing are essential. Professional installation is recommended if you are unfamiliar with EFI fuel-system work.