When it comes to fuel pumps, there is no one-size fits all solution. However, when making the decision on which type of fuel pump is right for your vehicle it's important to consider both operational and cost benefits based on a variety of factors.

It can be difficult to decide between electric and mechanical fuel pumps as each has its own set of pros and cons depending on your needs. We'll help break down each option in an easy-to-understand manner so that you can make the best choice for your car!

Let’s dive in together to explore what these two types of fuel pumps have in store from their technical specifications, cost implications, and more!

What are fuel pumps?

Put simply, a fuel pump is an integral part of your vehicle's fuel system responsible for transferring the gasoline from the gas tank to the engine. This transfer of fuel allows the engine to be able to power up and run. In modern vehicles with internal combustion engines, there are two main types of fuel pumps: mechanical and electric. 

Fuel pumps have been around since the early days of automobiles. The first type of fuel pump was a mechanical fuel pump, which uses an internal spring-loaded diaphragm to pump gasoline from the tank to the engine. These were standard for many years but were eventually overtaken by electric fuel pumps in the 30s and 40s due to their ability to provide more efficient fuel delivery at a lower cost. 

Today, both electric and mechanical fuel pumps are still used in most cars and trucks, although the majority of vehicles now use electric fuel pumps due to their efficiency and economy. 

Technical Specifications:

How do electric fuel pumps work? 

An electric fuel pump is a device that uses an electric motor to push gasoline or diesel fuel from a storage tank to the engine. The fuel pump is usually located inside the fuel tank or very close to the tank and is connected to the fuel tank by a fuel line.

The electric fuel pump is turned on and off by the engine's computer. When the engine is started, the computer sends a signal to the fuel pump to turn on. The pump creates a vacuum in the fuel line, which causes the fuel to be drawn into the pump. The pump then pushes the fuel into the engine. When the engine is stopped, the computer sends a signal to the fuel pump to turn off.

How do mechanical fuel pumps work? 

Mechanical fuel pumps work by using a piston to push the fuel from the tank to the engine. The pump is connected to the engine with a belt, and when the engine is running, the pump turns and supplies fuel to the engine. There are two types of mechanical fuel pumps- positive displacement and centrifugal. Positive displacement pumps are more common and work by squeezing the fuel through a small opening. Centrifugal pumps use centrifugal force to draw the fuel in, and they are usually used in high-pressure applications.

What are the benefits of electric fuel pumps? 

Electric fuel pumps offer a variety of benefits for vehicles, including:

• More efficient fuel delivery: Electric fuel pumps are able to provide a consistent, steady flow of fuel to the engine. This means that your vehicle’s performance is not affected by changes in temperature, altitude or other environmental factors.
• Easier installation: Electric fuel pumps are much easier to install than mechanical fuel pumps, so you don’t have to worry about any complicated setup.
• Faster start times: Electric fuel pumps can provide the engine with fuel much faster than mechanical fuel pumps, so your vehicle will start up and be ready to go quickly.
• Reduced maintenance costs: Electric fuel pumps generally require less maintenance than mechanical fuel pumps, so you can save money over the life of your vehicle.
• More reliable: Electric fuel pumps are more reliable than mechanical fuel pumps, which can fail due to wear and tear over time. Electric fuel pumps also last longer than mechanical fuel pumps, so you won’t have to worry about replacing them as often. This helps to reduce the overall maintenance costs of your vehicle.
• Lower emissions: Electric fuel pumps help to reduce emissions as they burn fuel more efficiently than mechanical pumps. This makes electric fuel pumps a great choice for vehicles that are looking to reduce their environmental impact.
• Better performance: Electric fuel pumps offer better performance than mechanical fuel pumps due to the consistent flow of fuel they provide. This helps improve your vehicle’s power and efficiency, allowing you to get the most out of your engine.

What are the benefits of mechanical fuel pumps? 

Mechanical fuel pumps offer a variety of benefits that can be extremely helpful for drivers and mechanics, including:

• Cost: Mechanical fuel pumps are typically less expensive than electric fuel pumps, making them a great option for those on a budget.
• Ease of Repair: Since mechanical fuel pumps have fewer parts and are simpler in design, they are often easier to repair compared to electric fuel pumps.
• Durability: Mechanical fuel pumps tend to be more durable than electric fuel pumps, making them a great choice for vehicles that must endure harsh conditions.

Overall, mechanical fuel pumps offer several benefits that are difficult to ignore. They are typically less expensive and easier to repair than electric fuel pumps, and they are also more durable in extreme conditions. For these reasons, many drivers prefer mechanical fuel pumps over electric fuel pumps. 

What are the drawbacks to an electric fuel pump?

Electrical fuel pumps are not without their problems:

• Higher cost: Electric fuel pumps can be much more expensive than mechanical fuel pumps.
• Increased complexity: Electric fuel pumps have a lot of moving parts and require a complex setup that can make installation difficult. It can also be difficult to troubleshoot problems if the pump fails. Electric fuel pumps are usually sealed units, so it can be hard to determine what is wrong with them without specialized equipment.
• Inadequate cooling: Since electric fuel pumps operate at higher temperatures, they need to be cooled in order to prevent overheating and possible engine damage. If not properly cooled, electric fuel pumps can overheat and fail.
• Require more power: Electric fuel pumps require more power than mechanical fuel pumps, so your vehicle may need to be outfitted with additional components in order to accommodate the extra power requirements.
• Generate more heat: Electric fuel pumps tend to generate more heat than mechanical fuel pumps, which can be an issue in hot climates. 

What are the drawbacks of a mechanical fuel pump?

There are some drawbacks to a mechanical fuel pump, including:

• Lower efficiency: Mechanical fuel pumps are not as efficient as electric fuel pumps, so they may not be able to keep up with the demands of a high-performance engine.
• More prone to failure: Mechanical fuel pumps have more moving parts and can wear out faster than electric fuel pumps. This can lead to breakdowns and expensive repairs over time.
• More difficult to install: Installing a mechanical fuel pump can be more complicated than installing an electric fuel pump due to the additional parts and complexity of the design. However, some electric pumps are considered 8 hour install jobs. 
• Require more maintenance: Mechanical fuel pumps require more frequent maintenance and upkeep than electric fuel pumps, which can be a hassle for some drivers. 

How to choose between a mechanical and electrical fuel pump

Overall, both mechanical and electric fuel pumps have their advantages and disadvantages depending on your needs and vehicle type. It is important to consider all of these factors when deciding what type of fuel pump is best for you.

When choosing between mechanical vs electric fuel pump there are several key factors to consider, including:

• Cost: Electric fuel pumps tend to be more expensive than mechanical pumps.
• Installation: Installing electric fuel pumps can be complex and time consuming, while installing a mechanical pump is relatively simple.
• Efficiency: Electric fuel pumps are generally more efficient than their mechanical counterparts.
• Durability: Mechanical fuel pumps tend to be more durable in extreme temperatures and conditions than electric fuel pumps.
• Maintenance: Mechanical fuel pumps require more frequent maintenance and upkeep than electric fuel pumps. 

Ultimately, the decision of which type of fuel pump is best for you will depend on your individual needs and preferences. It is important to consider all of these factors when making your decision. Consulting a professional mechanic or auto parts specialist can also help you make the best decision for your vehicle. 

Checking with a member of our professional team before making any decisions about your fuel pump is a good idea to ensure that you get the best possible product for your needs and budget. By doing so, you can be sure that your car’s fuel system will operate in the most efficient and reliable way. 

Ready to upgrade and shop for performance fuel pumps? We have a great selection. Please contact us with any questions or concerns. Our team is here to help ensure that your car runs smoothly and efficiently!