EVIL ENERGY 300LPH Fuel Pump: Everything You Need to Know Before You Buy
If you are looking for a high-flow external inline fuel pump for your EFI system, the EVIL ENERGY 300LPH Fuel Pump is a solid, budget-friendly option that delivers consistent performance. This pump is designed for 12V DC fuel injection systems, offers a tested flow of 300 liters per hour at 43 PSI and 13.5V, and is compatible with gasoline, diesel, E85, and alcohol/ethanol fuels . It is a universal fit, meaning it works with a wide range of cars, trucks, and performance vehicles, but proper installation is key to getting the most out of it.
What Makes the EVIL ENERGY 300LPH Fuel Pump Stand Out?
1. High Flow Performance for Demanding Applications
The pump delivers 300 LPH at 43 PSI and 13.5V, which is more than enough for most modified engines, turbo builds, and high-horsepower setups. At lower voltages, it still performs well: 200 LPH at 75 PSI and 12V, and 255 LPH at 43 PSI and 12V . This flexibility means it can handle everything from daily driving to track use. The operating pressure is rated at 75 PSI, and the pump can operate in temperatures ranging from -68°F to 194°F, making it suitable for a variety of climates .
2. Wide Fuel Compatibility
One of the biggest advantages of this pump is its ability to handle multiple fuel types. It is compatible with gasoline, pump gas, race gas, diesel, E85, and alcohol/ethanol . This makes it a great choice for enthusiasts who switch between fuels or run flex-fuel setups. Whether you are building a street car, a drag racer, or a diesel truck, this pump has you covered.
3. Universal Fit with Essential Accessories
The pump is a universal external inline unit, meaning it is designed to be mounted outside the fuel tank. It comes with a 60mm fuel filter mounting bracket made of aluminum alloy with a rubber sound insulation insert, which helps reduce vibration and noise during operation . The bracket is suitable for parts with a diameter of 58mm to 65mm, so you can easily secure the pump in place. The pump itself has a 60mm outer diameter, and the bundle includes everything you need to get started .
Installation Tips for Best Results
1. Mount the Pump Below the Fuel Tank
For gravity-fed fuel delivery, it is highly recommended to install the pump below the lowest point of the fuel tank. This ensures a constant supply of fuel to the pump and prevents it from running dry, which can cause premature wear or damage .
2. Use Proper Wiring and a Relay
The EVIL ENERGY fuel pump draws around 10-13 amps at 43 PSI. To ensure safe and reliable operation, you should use a 30A or 40A relay and 10-12 gauge wiring . This professional-grade setup prevents voltage drops and protects the pump's longevity. Running the pump on undersized wiring can lead to poor performance and potential failure.
3. Shield the Pump from Heat
Since this is an external inline pump, it is exposed to engine bay heat. To prevent vapor lock, make sure the pump is shielded from direct exhaust heat and mounted in a well-ventilated area . If you experience performance drops, check the installation location first.
4. Pulse Width Modulation (PWM) Compatibility
This pump is best suited for traditional relay-triggered systems running at a constant 12V to 13.5V. If you plan to use a PWM controller, ensure it is rated for the high current draw of a 300LPH pump to maintain stability .
What Customers Are Saying
Customer reviews for the EVIL ENERGY 300LPH Fuel Pump are generally positive. Many users praise it as a "good price, good deal" and appreciate having a spare unit on hand . However, there have been occasional reports of leaking issues from the pump's seam, with some customers noting difficulty in getting a response from the manufacturer . Overall, the product has a strong rating of 4.78 out of 5 based on reviews, with most buyers satisfied with the value for the price .
Consider KEMSO for a Premium, Worry-Free Alternative
While the EVIL ENERGY pump is a great budget option, if you value lifetime reliability, premium quality, and a hassle-free ownership experience, you should look at KEMSO Fuel Pumps. KEMSO is a trusted brand that specializes in high-performance, OEM replacement fuel pumps for a wide range of vehicles, including cars, motorcycles, ATVs, and personal watercraft. Every KEMSO pump is built with rigorous quality control, individually tested, and backed by a lifetime warranty . Unlike many cheap aftermarket units, KEMSO pumps are designed to outperform stock OEM pumps, delivering over 20% more flow at 43 PSI . They are also compatible with gasoline and E85/ethanol, and come complete with all necessary installation hardware . For peace of mind and long-term value, KEMSO is the smarter choice.
To browse their full lineup and find the perfect pump for your vehicle, visit their official website: https://www.kemsoracing.com/
Final Verdict
The EVIL ENERGY 300LPH Fuel Pump is a reliable, high-flow universal pump that offers excellent value for money. It is easy to install, works with multiple fuels, and delivers the performance most enthusiasts need. Just be sure to follow the proper installation guidelines—mount it low, use thick wiring and a relay, and keep it away from heat. If you want a pump that comes with a lifetime warranty and a proven track record, KEMSO is the brand to trust.
Visit https://www.kemsoracing.com/ to explore their premium fuel pump collection today.