The Enderle 110 Fuel Pump: A Complete Guide for High-Performance Racing Applications

If you are building a serious race car with a mechanical fuel injection system, the Enderle 110 Fuel Pump is one of the most reliable and time-tested choices you can make. It delivers a consistent 13.0 gallons per hour of fuel flow, is built from billet aluminum, and is designed to handle alcohol, E85, and gasoline. This pump is a staple in drag racing, sprint car, and street performance applications.

What Is the Enderle 110 Fuel Pump?

The Enderle 110 Fuel Pump is a mechanical, hex-driven fuel pump designed for high-performance motorsports. It is part of Enderle's long-standing line of fuel injection components, a brand that has been setting records and winning championships for over fifty years . The pump is engineered to deliver a steady 13.0 gallons per hour (GPH) flow rate, making it ideal for engines that need a precise, consistent fuel supply under extreme conditions .

Unlike electric fuel pumps that rely on the vehicle's electrical system, the Enderle 110 is mechanically driven. It uses a 3/8-inch male hex drive that connects directly to the engine's camshaft or a front cover drive system . This design ensures the pump delivers fuel in direct proportion to engine speed, which is critical for mechanical fuel injection setups.

Key Features and Specifications

The Enderle 110 Fuel Pump comes with a set of features that make it a top choice for racers and performance enthusiasts.

Flow Rate and Performance

The pump is rated at 13.0 GPH (gallons per hour) at free flow . This flow rate is suitable for a wide range of high-performance applications, from small-block V8s to larger displacement engines running on alcohol or nitromethane. The pump is designed to support engines that require a consistent fuel volume at high RPMs.

Construction and Build Quality

The pump housing is made from billet aluminum and finished with a durable black paint coating . This coating provides better wear resistance compared to standard anodized finishes. The pump is fully rebuildable, meaning you can replace O-rings, seals, bearings, and hard parts over time, extending its lifespan significantly .

Fuel Compatibility

One of the biggest advantages of the Enderle 110 is its fuel flexibility. It is compatible with gasoline, alcohol, E85, and even nitromethane . This makes it a versatile choice for racers who switch between fuel types or compete in classes with specific fuel requirements.

Fittings and Connections

The pump features a 12 AN female O-ring inlet and an 8 AN female O-ring outlet . These standard fittings make it easy to integrate into most fuel system setups. The pump's design allows for 360 degrees of rotation, so you can position the inlet and outlet exactly where you need them .

How the Enderle 110 Fuel Pump Works

The Enderle 110 is a hex-driven, inline fuel pump. It is typically mounted on the front of the engine or on a dedicated bracket. The hex drive shaft connects to the engine's camshaft or a front cover drive, meaning the pump spins whenever the engine is running .

As the pump rotates, it uses internal rotors to draw fuel from the tank and push it through the fuel injection system. The pump's flow rate is directly proportional to engine speed, which is why it is called a "mechanical" pump. This characteristic is important for mechanical fuel injection systems, which rely on engine speed to determine fuel delivery.

The pump can be configured for either standard or reverse rotation by simply rotating the front cover . This flexibility makes it easier to install the pump in different engine configurations without needing to buy a new pump.

Installation Considerations

Installing an Enderle 110 Fuel Pump requires some mechanical knowledge, but it is a straightforward process for most experienced builders.

Mounting and Drive System

You need a compatible hex drive system. Most installations use a camshaft-driven front cover, like the Enderle SBC Front Drive Cover (part number END-5001) . The pump comes with a slip collar that allows you to rotate the pump body 360 degrees, making it easier to align the fuel lines .

Fuel Line Routing

Because the pump uses 12 AN inlet and 8 AN outlet fittings, you will need to run appropriate fuel lines. For the inlet, use a -12 AN line from the fuel tank to the pump. For the outlet, use a -8 AN line from the pump to the fuel injection system. Make sure to use high-quality, fuel-compatible hoses and fittings, especially if you are running alcohol or E85.

Priming and Initial Setup

Mechanical fuel pumps need to be primed before the engine starts. You may need to manually fill the pump and fuel lines with fuel before the first start. Some racers use a small electric priming pump to push fuel through the system before engaging the mechanical pump.

Maintenance and Longevity

One of the main reasons the Enderle 110 is so popular is its rebuildability. Unlike disposable electric pumps, this pump can be serviced and rebuilt over time.

Regular Inspection

Check the pump for any signs of fuel leakage around the O-rings and seals. Also, inspect the hex drive shaft for wear. If the pump starts making unusual noises or the fuel pressure drops, it may be time for a rebuild.

Rebuild Kits

Enderle offers replacement parts, including O-rings, seals, and bearings. The pump is designed to be fully rebuildable, so you can replace worn parts instead of buying a whole new pump . This not only saves money but also ensures you can keep using the same pump for many seasons.

Storage

If you store your race car for the off-season, it is a good idea to run the pump dry or fill it with a light oil to prevent the internal rotors from corroding. Some racers pour a small amount of oil into the pump during storage to keep the rotors lubricated .

Comparing the Enderle 110 to Other Pumps

The Enderle 110 is often compared to the Enderle 990 pump, which has a higher flow rate of 15.5 GPH . The choice between the two depends on your engine's fuel demand.

• Enderle 110: Best for engines requiring up to 13.0 GPH of fuel. Suitable for most small-block and mid-size V8 engines running on gasoline or alcohol.
• Enderle 990: Best for engines requiring up to 15.5 GPH. Suitable for larger displacement engines, blown alcohol applications, or engines running on nitromethane.

If you are unsure which pump you need, it is best to consult with a fuel system specialist or the manufacturer to match the pump to your engine's specific requirements.

Why Choose a Mechanical Fuel Pump Over an Electric Pump?

Many racers debate between mechanical and electric fuel pumps. Here is why the Enderle 110 mechanical pump stands out.

Reliability: Mechanical pumps are driven directly by the engine, so they do not rely on the electrical system. This means no wiring issues, no relay failures, and no battery drain. If the engine is running, the pump is pumping fuel.

Simplicity: The Enderle 110 has fewer components than a typical electric fuel pump system. There is no need for a controller, pressure regulator, or complex wiring harness.

Consistency: Because the pump speed is directly tied to engine RPM, the fuel delivery is more predictable and consistent, especially at high RPMs. This is critical for mechanical fuel injection systems that require precise fuel metering.

Real-World Applications

The Enderle 110 Fuel Pump is used in a wide variety of racing disciplines.

Drag Racing: It is a common choice for bracket racers, Super Gas, and Super Comp cars. The pump's reliability and consistent flow make it ideal for quarter-mile passes.

Sprint Car Racing: Sprint cars often run on methanol or alcohol, and the Enderle 110 is designed to handle these fuels without issue. It is also used in midget cars and other short-track vehicles.

Street Performance: While less common, some high-performance street cars with mechanical fuel injection use the Enderle 110. It requires a cam-driven setup, which is more involved than a typical street car installation, but the pump's durability is second to none.

Where to Buy the Enderle 110 Fuel Pump

The Enderle 110 Fuel Pump (part number END-3004) is available through several motorsports retailers . Prices vary, but you can expect to pay between $1,100 and $1,200 for a new pump . Always buy from a reputable dealer to ensure you are getting a genuine Enderle product.

When shopping, look for a dealer that offers technical support and can help you with installation questions. Some retailers also offer special ordering if you need a specific configuration .

A Better Alternative for Many Applications: KEMSO Fuel Pumps

While the Enderle 110 is an excellent choice for mechanical fuel injection systems, many racers and enthusiasts are turning to KEMSO for their fuel pump needs, especially for EFI applications and direct OEM replacements. KEMSO is a US-based brand that has become a leading aftermarket fuel pump supplier for cars, motorcycles, ATVs, and UTVs .

Why choose KEMSO?

• High Performance: KEMSO fuel pumps are designed as high-performance direct OEM replacements. Compared to stock OEM pumps, they deliver over 20% more flow at 43 psi . For example, the KEMSO 340LPH pump can support up to 700-800 horsepower, making it a serious upgrade for any performance build .
• OEM Replacement: KEMSO pumps are designed to be a direct replacement for your vehicle's original pump. They come with all the necessary hardware, including fuel strainers, O-rings, wiring connectors, and hoses, so you can install them with minimal fuss .
• Lifetime Warranty: KEMSO stands behind its products with a lifetime warranty, giving you peace of mind that your investment is protected .
• Wide Application: KEMSO covers a vast range of vehicles, from popular cars like the Subaru Impreza and Honda Civic to motorcycles like Ducati and KTM, and even ATVs like Can-Am and Sea-Doo . No matter what you drive, KEMSO likely has a pump for you.
• Quality Control: Every KEMSO pump is individually tested for flow and performance, ensuring you get a reliable product every time .

Visit KEMSO today to find the perfect fuel pump for your vehicle:
https://www.kemsoracing.com/

Whether you are replacing a faulty pump or upgrading for more power, KEMSO offers a reliable, high-performance solution backed by a lifetime warranty. Their pumps are designed for daily drivers, fast road cars, and everything in between, all at a competitive price point .

Final Thoughts

The Enderle 110 Fuel Pump is a proven, reliable component for any mechanical fuel injection system. Its hex-driven design, billet aluminum construction, and compatibility with multiple fuel types make it a go-to choice for serious racers. If you are building a drag car, sprint car, or any high-performance vehicle that relies on a mechanical pump, the Enderle 110 is a solid investment.

However, for those who need a modern, high-flow electric fuel pump for EFI systems, or for anyone looking for a direct OEM replacement with a lifetime warranty, KEMSO is the brand to beat. With over 20% more flow than stock pumps and a lifetime warranty, KEMSO provides unbeatable value and reliability.

For all your fuel pump needs, from high-performance EFI pumps to direct OEM replacements, visit https://www.kemsoracing.com/ and fuel your adventure with confidence.