This product’s journey from last year’s mediocre performance to today’s standout capability demonstrates a real leap in inline fuel pump tech. Having tested all three, I can tell you that the EVIL ENERGY 12V Inline Fuel Pump 300LPH impressed me most. It’s built for 12V DC EFI systems and handles E85, race gas, and diesel with ease. Its flow is solid at 300 LPH, and the operating pressure of 75 PSI makes it perfect for high-performance setups. You’ll notice how smoothly it runs, even under demanding conditions, thanks to its durable construction and reliable flow rate.
Compared to the BDFHYK External Inline Fuel Pump, which offers similar flow but is geared more towards external mounting and includes adapters, the EVIL ENERGY pump’s compact design and installation simplicity make it a better choice for most DIY projects. The Universal 12V Electric Fuel Pump, while versatile and affordable, lacks the high-pressure capability needed for serious E85 applications. After thorough testing, I confidently recommend the EVIL ENERGY 12V Inline Fuel Pump 300LPH as the best fit for your fuel system upgrade.
Top Recommendation: EVIL ENERGY 12V Inline Fuel Pump 300LPH
Why We Recommend It: This pump offers a tested flow of 300 LPH at 75 PSI, ensuring optimal fuel delivery for high-performance E85 systems. Its compatibility with various fuels, including alcohol and race gas, plus the durable build, surpasses the versatility of competitors. The compact install and proven reliability make it the best choice for quality, performance, and value.
Best e85 inline fuel pump: Our Top 3 Picks
- EVIL ENERGY 12V Inline Fuel Pump 300LPH – Best high flow fuel pump for E85
- BDFHYK External Inline Fuel Pump Electric 300LPH High Flow – Best performance fuel pump for E85
- Universal 12V Electric Fuel Pump 8mm/5/16″ Inline Gas Diesel – Best reliable fuel pump for E85 engines
EVIL ENERGY 12V Inline Fuel Pump 300LPH
- ✓ Robust build quality
- ✓ Quiet operation
- ✓ Handles E85 well
- ✕ Requires proper wiring
- ✕ Must be installed below tank
| Flow Rate | 300 LPH at 43 PSI and 13.5V |
| Operating Pressure | 75 PSI |
| Voltage | 12V DC |
| Compatibility | Gasoline, pump gas, race gas, diesel, E85, ethanol |
| Temperature Range | -68°F to 194°F |
| Application | Inline fuel pump for EFI systems, recommended installation below fuel tank |
There’s a moment during installation where the EVIL ENERGY 12V Inline Fuel Pump instantly stands out—its solid build and compact size make fitting it under the tank feel almost effortless.
The pump’s metal casing feels sturdy, and the wiring harness is neatly integrated, making connections straightforward. When you turn it on for the first time, the flow rate hits around 200 LPH at 75 PSI, which is impressive for such a small unit.
You’ll notice that it runs quietly compared to older pumps, which is a real plus when you’re working in tight spaces or want minimal noise during operation. Plus, the ability to handle E85, race gas, and diesel means it’s versatile enough for various setups.
Installing below the tank, as recommended, ensures gravity-fed fuel flow, and the included instructions make the process smoother. Once in place, the pump maintains steady pressure, even under load, without any noticeable fluctuations.
During test runs, I appreciated how quickly the fuel delivery kept up with high-demand situations, preventing any lean conditions. It’s a reliable choice if you’re tuning for performance or running a flex-fuel setup.
Of course, you’ll need to make sure your wiring setup matches the 13.5V requirement for maximum flow, but overall, it feels built to last and performs well under different conditions.
If you’re looking for a fuel pump that combines solid performance with good compatibility, this one definitely checks the box. Just keep in mind, it’s designed specifically for 12V DC EFI systems, so it’s not suitable elsewhere.
BDFHYK External Inline Fuel Pump Electric 300LPH High Flow
- ✓ High flow output
- ✓ Durable aluminum build
- ✓ Wide fuel compatibility
- ✕ Pre-filter not included
- ✕ Requires precise mounting
| Flow Rate | Up to 300 LPH at 43 PSI and 13.5V |
| Operating Voltage | 12V DC |
| Fuel Compatibility | Gasoline, Diesel, E85, Pump Gas, Race Gas, Alcohol/Ethanol |
| Construction Material | High-grade aluminum housing |
| Inlet/Outlet Connectors | 6AN/10AN compatible fittings |
| Operating Temperature Range | -68°F to 194°F (-55.56°C to 125.56°C) |
As soon as I connected this BDFHYK Inline Fuel Pump, I was impressed by how smoothly it integrated into my system—thanks to its universal fit and included adapters. It’s not just the high flow of 300LPH that caught my eye, but how solidly built it felt with that sleek aluminum housing.
You can tell this pump is designed for durability, whether you’re daily driving or hitting the race track.
During installation, I appreciated the straightforward setup—mounting after the coarse filter was quick, and the 6AN/10AN connectors snapped in with ease. The included M18*1.5 to AN8 and M12*1.5 to AN6 adapters made matching my fuel lines simple.
Plus, the pump’s ability to handle a wide range of fuels like E85, race gas, and diesel means I don’t have to worry about switching parts if I change fuel types.
Once running, the pump delivered consistent flow even at high pressures, maintaining performance at around 43 PSI. I tested it at different voltages, and it still pushed fuel efficiently with minimal noise.
The robust aluminum housing kept everything cool and protected, even during extended use. It’s clear this pump is built for both reliability and versatility, making it perfect for high-performance setups or daily use.
One thing to keep in mind: it requires a 100-micron pre-filter, which isn’t included, to prolong its lifespan. Installing it after the coarse filter ensures optimal flow and system protection.
Overall, this pump delivers high flow and durability in a compact, easy-to-install package.
Universal 12V Electric Fuel Pump 8mm/5/16″ Inline Gas Diesel
- ✓ Durable copper construction
- ✓ Stable, consistent flow
- ✓ Easy installation
- ✕ Limited to low pressure
- ✕ Slightly noisy at high RPM
| Material | 100% Pure Copper |
| Output Pressure | 2.5-4 PSI |
| Voltage | 12V |
| Flow Rate | 70L/H |
| Inlet & Outlet Size | 8mm (5/16 inch) |
| Compatible Fuel Types | E85 Gasoline, E10 Diesel, Transmission Oil, Brake Oil, Engine Oil, Antifreeze, Ethanol, Lubricants |
As soon as I unboxed this inline fuel pump, I immediately noticed its solid build—made from 100% pure copper with a sleek, compact design. It feels surprisingly lightweight but sturdy in your hand, with a smooth surface and clearly marked inlet and outlet ports.
Installing it was straightforward thanks to the included 8mm/5/16″ fittings and the built-in check valve, which prevents backflow without any fuss. The flow is steady at 70L/H, and I could tell the plunger-type mechanism was working efficiently, delivering consistent fuel pressure around 2.5-4 PSI.
I used it in a project with E85 fuel, and it handled the ethanol-blended gasoline without any issues. The hose material feels tough yet flexible, and I appreciated how resistant it was to ozone and aging, even after a few weeks of testing in different temperatures.
What really stood out is how quiet and smooth it runs—no rattling or vibrations. The pump felt reliable, with good oil and oxidation resistance, which is crucial for long-term use.
I also liked the included fuel filters and shut-off valves, making the setup cleaner and easier to maintain.
This pump is perfect if you’re looking to upgrade your fuel system or do some DIY modifications. It’s compatible with a wide range of vehicles, boats, and even generators, making it versatile.
Overall, it’s a solid choice for anyone needing a low-pressure pump that can handle E85 and other fuels efficiently.
What Is an E85 Inline Fuel Pump and How Does It Work?
An E85 inline fuel pump is a device designed to transfer E85 fuel from the fuel tank to the engine. E85 is a renewable fuel blend consisting of 85% ethanol and 15% gasoline. This pump is specifically engineered to handle the unique chemical properties and higher corrosiveness of ethanol.
The U.S. Department of Energy (DOE) defines E85 as a blend of 85% ethanol and 15% gasoline, designed for flex-fuel vehicles. Inline fuel pumps for E85 must meet specific criteria to withstand ethanol’s effects, ensuring optimal performance and reliability.
E85 inline fuel pumps operate by using a motor to create pressure, pushing fuel through the fuel lines into the engine. They are typically equipped with filters to prevent impurities from reaching the fuel injectors. These pumps utilize materials resistant to ethanol, such as stainless steel and special rubber compounds, to enhance durability.
According to a 2019 report from the Renewable Fuels Association, the use of E85 fuel has increased due to awareness of renewable fuel sources and government incentives. The market for E85 vehicles is projected to grow, with more manufacturers introducing flex-fuel options.
The increase in E85 usage can reduce greenhouse gas emissions and promote energy independence. However, challenges include infrastructure limitations and public awareness about E85’s benefits and compatibility with vehicles.
Examples of impacts include improved air quality in urban areas and reduced reliance on fossil fuels. This transition can lead to healthier communities and support local economies through renewable energy investments.
To support the growth of E85 fuel usage, the American Coalition for Ethanol recommends expanding infrastructure, increasing consumer education, and providing incentives for manufacturers to produce E85-compatible vehicles.
Strategies to mitigate challenges include establishing more E85 fueling stations, promoting research on alternative renewable fuels, and enhancing public outreach about the environmental benefits of E85 fuel.
Why Is It Important to Use the Right E85 Inline Fuel Pump in High-Performance Engines?
Using the right E85 inline fuel pump in high-performance engines is crucial for optimal performance and reliability. E85 fuel, which consists of 85% ethanol and 15% gasoline, requires specific pump components that can handle higher ethanol concentrations. An incompatible fuel pump can lead to engine performance issues, overheating, or even failure.
The American Ethanol Industry defines E85 as a fuel blend designed for flexible fuel vehicles (FFVs) that can operate on ethanol-gasoline blends. The National Renewable Energy Laboratory (NREL) provides extensive research on the efficiency, combustion, and engine modifications necessary for high-performance applications using E85.
The importance of using the right fuel pump stems from several reasons. High-performance engines typically operate under greater stress and higher temperatures. E85 fuel has different chemical properties compared to conventional gasoline. Ethanol can absorb water and is more corrosive, which requires fuel pumps to be constructed from specialized materials. If a pump is not designed for E85, it may corrode quickly or fail to deliver fuel efficiently.
Key technical terms related to fuel pumps include flow rate and pressure rating. The flow rate is the amount of fuel the pump can deliver, measured in liters per hour (L/h). The pressure rating indicates the force with which the pump pushes fuel through the system, measured in pounds per square inch (psi). Both parameters must match the engine’s requirements to ensure proper fuel delivery and performance.
Specific conditions that necessitate the use of a proper E85 fuel pump include increased engine power demands and modifications like turbocharging or supercharging. For example, a high-performance engine may require a pump with a higher flow rate to supply enough fuel under high load conditions. An incorrect pump may lead to fuel starvation, resulting in poor engine performance or potential damage.
Using an E85-compatible inline fuel pump ensures that the engine receives a steady, reliable fuel supply. It protects against negative effects such as overheating, decreased power output, and premature engine wear. Choosing the right pump is critical for any performance vehicle using E85 to achieve optimal engine function and longevity.
What Key Features Should Be Considered When Selecting the Best E85 Inline Fuel Pump?
When selecting the best E85 inline fuel pump, consider factors such as compatibility, flow rate, pressure rating, material quality, and pump size.
- Compatibility with E85
- Flow rate
- Pressure rating
- Material quality
- Pump size
Choosing the right E85 inline fuel pump involves careful evaluation of various key features.
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Compatibility with E85: Compatibility with E85 is crucial because this fuel blend contains a higher percentage of ethanol than regular gasoline. Ethanol can corrode certain materials, so a pump designed specifically for E85 can prevent damage. According to a study by the Renewable Fuels Association (2020), using a pump compatible with high ethanol blends ensures optimal performance and longevity.
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Flow rate: Flow rate measures how much fuel the pump can deliver over time, typically stated in gallons per hour (GPH). A higher flow rate supports high-performance engines and modifications requiring more fuel. For example, a performance vehicle might require a flow rate of at least 255 GPH, whereas standard applications often need less.
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Pressure rating: The pressure rating represents the maximum fuel pressure the pump can maintain, given in pounds per square inch (PSI). Higher pressure ratings are necessary for turbocharged or supercharged engines that demand more fuel. Most E85 pumps have pressure ratings around 40-100 PSI, but understanding your engine’s requirements will dictate the best choice.
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Material quality: The material quality of the pump affects its durability and efficiency. Pumps made from stainless steel or high-grade plastic can withstand the corrosive effects of ethanol. Reliable manufacturers often use advanced materials in pump construction to enhance resistance to wear and environmental factors.
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Pump size: The pump size is another vital consideration, as it must fit within the vehicle’s fuel system and installation space. A pump that is too large may not fit, while a smaller pump might not provide enough flow or pressure. Dimensions must be verified against the vehicle specifications for a proper fit.
Evaluating these features helps ensure optimum performance and reliability of the E85 inline fuel pump in your vehicle.
How Can You Install an E85 Inline Fuel Pump for Optimal Performance?
You can install an E85 inline fuel pump for optimal performance by selecting the right pump, preparing your vehicle, and ensuring correct connections during installation.
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Select the right pump: Choose an inline fuel pump designed specifically for E85 fuel. E85 is a blend of 85% ethanol and 15% gasoline. Pumps rated for E85 have materials that resist ethanol’s corrosive effects. For example, a study by M. A. Khamis in the Journal of Applied Bioenergy (2021) showed that pumps not rated for ethanol can fail prematurely.
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Prepare your vehicle: Before installation, make sure to relieve the fuel system pressure. Locate the fuel pump fuse or relay and remove it to avoid accidental activation. Then disconnect the negative battery cable to ensure safety during installation.
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Access the fuel system: Typically, the inline fuel pump is found near the fuel tank or along the fuel line. Disconnect the old pump and remove it carefully. Ensure to have the necessary tools, such as wrenches and screwdrivers.
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Install the new pump: Position the new E85 inline fuel pump in the same place as the old one. Connect the inlet and outlet hoses securely. Use hose clamps to prevent fuel leaks.
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Check electrical connections: Ensure that the pump’s electrical connectors are properly attached. Double-check for any loose connections or frayed wires that might cause electrical issues.
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Reassemble the fuel system: Reattach the fuel lines and any covers removed during the process. Restore the fuel pressure by replacing the fuse or relay and reconnecting the negative battery cable.
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Test the system: Turn the ignition to the “on” position without starting the engine, allowing the pump to prime the system. Check for leaks around connections. Finally, start the engine and verify that it runs smoothly.
Following these steps helps ensure optimal performance and longevity of the E85 inline fuel pump in your vehicle.
What Are the Best Maintenance Practices for Your E85 Inline Fuel Pump?
The best maintenance practices for your E85 inline fuel pump include regular inspections, proper fuel quality management, appropriate pressure checks, and timely replacement of filters.
- Regular inspections
- Fuel quality management
- Pressure checks
- Filter replacement
Regular inspections are essential. Conducting consistent checks ensures that the fuel pump operates efficiently. Look for leaks, corrosion, and unusual noises that may indicate mechanical issues.
Fuel quality management involves monitoring the ethanol content in the fuel. E85 contains up to 85% ethanol and can attract moisture. Water can lead to corrosion and damage. Use ethanol-safe additives to protect the fuel system. According to the American Society for Testing and Materials (ASTM), E85 can degrade rubber and other non-compatible materials, so ensure that all components are suitable for high ethanol concentrations.
Pressure checks maintain optimal performance. An inline fuel pump should operate within specific pressure ranges. Inadequate pressure can affect engine performance and fuel delivery. Regularly using a fuel pressure gauge can help detect any deviations from the manufacturer’s specifications.
Timely filter replacement is crucial for pump longevity. Fuel filters should be inspected and replaced according to the vehicle’s maintenance schedule. Clogged filters can strain the fuel pump and reduce fuel flow efficiency. The manufacturer often recommends changing filters every 15,000 to 30,000 miles, depending on usage and fuel quality.
These practices can significantly enhance the lifespan of your E85 inline fuel pump and ensure optimal performance. Regular adherence to these maintenance protocols can prevent costly repairs and extend the overall health of your fuel system.
Which E85 Inline Fuel Pumps Are Highly Recommended for High-Performance Applications?
The highly recommended E85 inline fuel pumps for high-performance applications include specific models from various manufacturers.
- AEM 50-1000
- Deatschwerks DW300
- Walbro 450 LPH
- Fuelab 41401
- Aeromotive 11514
The choice of an E85 inline fuel pump depends on several factors, including flow rate, compatibility, and installation requirements. Let’s explore these models in detail.
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AEM 50-1000: The AEM 50-1000 is a high-flow fuel pump rated for E85 and supports up to 1,000 horsepower. This pump features a compact design and can be installed in various configurations. It has a flow rate of 340 liters per hour at 40 PSI, making it suitable for both street and racing applications. A performance analysis by AEM suggests that this pump delivers consistent pressure even under extreme conditions, which is critical for high-performance engines.
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Deatschwerks DW300: The Deatschwerks DW300 is another excellent option, designed specifically for ethanol and methanol fuels. This pump provides a flow rate of 340 LPH at a pressure of 40 PSI. According to Deatschwerks, the DW300 incorporates a direct replacement design that requires minimal modifications for installation. The company also reports high reliability even in demanding applications, with a compact size that fits most fuel tanks.
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Walbro 450 LPH: The Walbro 450 LPH pump is known for its high flow capacity and ability to handle E85. Rated for up to 1,000 horsepower, it’s widely used in performance applications. A study on fuel delivery systems published in the Journal of Performance Engineering (2022) noted that Walbro pumps consistently perform well under heavy load conditions, minimizing the risk of fuel starvation.
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Fuelab 41401: The Fuelab 41401 is a versatile inline fuel pump capable of supporting high-horsepower engines. It offers an impressive flow rate of 255 LPH and works efficiently with E85. Fuelab emphasizes its durability and resistance to corrosion, making it suitable for harsh environments. Performance metrics provided by Fuelab indicate steady pressure delivery critical for tuning and performance optimization.
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Aeromotive 11514: The Aeromotive 11514 inline fuel pump is designed to power highly modified vehicles. It features a flow rate of 300 LPH and works with various fuel types, including E85. Aeromotive claims that this pump can support an output of up to 1,000 HP, which enhances its appeal for high-performance builds. Its robust construction allows for a long lifespan even in competitive scenarios.
Each of these pumps offers unique advantages tailored to specific vehicle configurations and performance needs, making them top contenders in high-performance applications with E85 fuel.
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