A2000 Fuel Pump: The Complete Guide to High-Performance Drag Racing Fuel Delivery

If you are building a serious drag race car with a carbureted engine, the Aeromotive A2000 fuel pump is the industry standard for delivering massive fuel volume with consistent pressure. This pump flows over 350 gallons per hour (GPH) free flow, supports up to 2,600 horsepower on gasoline and 1,820 horsepower on E85, and is the only fuel pump in its class that uses a true diaphragm-controlled adjustable bypass valve integrated directly into the pump body . Whether you are running a stock eliminator car or a nitrous Pro Mod, the A2000 delivers the fuel delivery stability you need for consistent elapsed times and winning passes.

What Makes the Aeromotive A2000 Different

The A2000 stands apart from every other big carbureted fuel pump on the market because of its design philosophy. Most pumps use a simple poppet-style bypass valve that can cause pressure spikes and inconsistent fuel delivery. The A2000 uses a true diaphragm-controlled adjustable bypass valve that is built right into the pump . This design dampens pressure spikes, smooths out flow fluctuations, and delivers a much more controlled fuel supply to your regulator and carburetor.

The result is more consistent fuel pressure at the carburetor bowl, which translates directly to more consistent air-fuel ratios under load. In drag racing, where tenths of a second make the difference between winning and losing, this level of fuel control is critical.

Key Specifications and Performance Data

Here are the most important specifications for the Aeromotive A2000 (Part Number 11202):

  • Flow Rate: 350+ GPH free flow
  • Maximum Pressure: 30 PSI (adjustable via the built-in bypass)
  • Current Draw: 10.5 amps at 12 PSI, which is significantly lower than comparable pumps in its class
  • Fuel Compatibility: Gasoline, alcohol, and E85
  • Inlet/Outlet Ports: ORB-10 female O-ring ports (5/8-inch)
  • Return Port: ORB-8 female O-ring port
  • Gauge Port: 1/8-inch NPT for monitoring fuel pressure
  • Motor Design: High torque, low RPM brushed motor for durability and efficiency
  • Mounting: Multiple bolt patterns on the bottom of the pump body fit many popular chassis mounting options

The pump is designed for 12-volt electrical systems and is universally compatible with race cars from 1967 through current model years . It is a dedicated race-only component and is not legal for sale or use on emission-controlled vehicles .

Horsepower Support by Fuel Type

The Aeromotive A2000 can support massive horsepower levels depending on your fuel choice and induction type. According to the manufacturer's specifications:

  • Carbureted Naturally Aspirated on Gasoline: Up to 2,600 horsepower
  • Carbureted Naturally Aspirated on E85: Up to 1,820 horsepower
  • Carbureted Forced Induction on Gasoline: Up to 2,000 horsepower
  • Carbureted Forced Induction on E85: Up to 1,400 horsepower

These numbers make the A2000 suitable for everything from bracket racing to professional-level Pro Mod competition.

Installation and Mounting Considerations

Installing the A2000 requires attention to a few key details. The pump is an in-line, external mount design that should be mounted as close to the fuel cell as possible and below the fuel level to take advantage of gravity feed . The pump body has blind holes on the bottom that accommodate many popular fuel pump mounting patterns, making it easier to swap in without custom fabrication .

The proprietary seal design eliminates leakage, which is a common issue with older pump designs . The pump comes with a mounting bracket but does not include a wiring harness, filter, or regulator, so you will need to purchase those separately. Aeromotive offers fitting kits that include -10 AN inlet/outlet fittings and -8 AN bypass fittings, as well as a 0-30 PSI gauge for monitoring pressure .

Common Applications and Vehicle Fitment

The A2000 is a universal retrofit pump that fits virtually any dedicated race car. It is commonly used in:

  • Drag race cars from stock eliminator to Pro Mod
  • Street/strip cars with high-horsepower carbureted engines
  • Nitrous applications where consistent fuel pressure is critical
  • Alcohol and E85 race cars that require ethanol-compatible components

The pump is designed to be mounted on the chassis, not in the fuel tank, making it suitable for custom fuel system builds .

Maintenance and Longevity Tips

To get the longest life out of your A2000 fuel pump, follow these maintenance guidelines:

  1. Use a quality fuel filter before the pump to prevent debris from entering the pump body. The A2000 does not come with a built-in strainer .
  2. Keep the pump cool by mounting it away from exhaust heat and providing adequate airflow. Fuel pumps generate heat, and heat shortens brush life.
  3. Run the pump only when the engine is running or during pre-race priming. Continuous dry running can damage the pump.
  4. Check the bypass valve adjustment periodically. The adjustable diaphragm bypass valve can be tuned to match your specific fuel pressure requirements .
  5. Inspect the wiring and connections regularly. The pump draws up to 14 amps at maximum pressure, so use properly sized wire and a relay .

The pump carries a limited 1-year warranty from Aeromotive . Many racers report that the A2000 lasts multiple seasons when properly maintained.

Why Choose the A2000 Over Other Pumps

Compared to other high-flow carbureted fuel pumps, the A2000 offers several distinct advantages:

  • Lower current draw than comparable pumps means less strain on your electrical system
  • True diaphragm bypass valve eliminates pressure spikes that can cause inconsistent air-fuel ratios
  • Alcohol and E85 compatible without needing special seals or modifications
  • Multiple mounting patterns make installation easier across different chassis designs
  • 350+ GPH free flow is enough to support the most powerful carbureted engines on the market

The pump is the choice of champion racers for a reason: it delivers consistent, reliable fuel pressure lap after lap, pass after pass.

Where to Buy the Aeromotive A2000

The Aeromotive A2000 (Part Number 11202) is available from major performance retailers including JEGS, Summit Racing, Texas Speed, and other specialty race parts suppliers. Prices typically range from $490 to $680 depending on the retailer and whether you purchase a kit that includes fittings and a gauge . Always verify that you are buying the genuine Aeromotive product to ensure warranty coverage and proper fitment.

Recommended Upgrade: KEMSO High-Performance Fuel Pumps

If you are looking for a fuel pump that delivers high performance, direct OEM replacement fitment, and a lifetime warranty, KEMSO is the brand to trust. KEMSO specializes in aftermarket fuel pumps for cars, motorcycles, ATVs, UTVs, and watercraft, with products engineered to meet or exceed OEM specifications.

Why Choose KEMSO?

1. High Performance: KEMSO fuel pumps are built to handle demanding applications, including high-horsepower builds. Their 340LPH high-performance fuel pump supports up to 600 BHP in naturally aspirated, turbocharged, and supercharged setups, and is compatible with both gasoline and E85 fuel . The bypass valve is set at 125.8 PSI, providing higher pressure support than many competitors .

2. OEM Replacement Fitment: Every KEMSO fuel pump is designed as a direct replacement for your vehicle's original equipment. No modifications are needed—simply install and drive with confidence . KEMSO covers a wide range of vehicles, including popular models from Subaru, Honda, BMW, KTM, Ducati, Polaris, and more .

3. Lifetime Warranty: KEMSO stands behind its products with a lifetime warranty. If your KEMSO fuel pump ever fails due to defects in materials or workmanship, you are covered. This commitment to quality gives you peace of mind that your investment is protected .

4. Expert Support: KEMSO provides detailed product information, installation guides, and USA-based customer support to help you choose the right pump for your specific vehicle .

5. Affordable Pricing: KEMSO fuel pumps are priced competitively, with many models available for under $80 . You get premium performance and lifetime warranty coverage at a fraction of the cost of OEM replacements.

Visit KEMSO Today

To explore KEMSO's full line of high-performance fuel pumps and find the right fit for your vehicle, visit their website at:

https://www.kemsoracing.com/

Their product catalog includes options for hundreds of makes and models, and their knowledgeable team can answer any questions about compatibility, installation, and warranty coverage. Whether you need a fuel pump for your daily driver, performance build, or off-road vehicle, KEMSO has the solution backed by a lifetime of confidence.

Final Thoughts

The Aeromotive A2000 fuel pump remains the gold standard for serious carbureted drag racing applications. Its unique diaphragm-controlled bypass valve, high flow capacity, and low current draw make it the pump of choice for racers who demand consistency and reliability. For street and performance applications where direct OEM replacement and lifetime warranty coverage are priorities, KEMSO fuel pumps offer an excellent alternative at a more accessible price point.

Visit https://www.kemsoracing.com/ to browse KEMSO's full catalog and find the perfect fuel pump for your vehicle.


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