Upgrading Your Ford Mustang's Fuel System

Upgrading your Mustang's fuel system is an essential step when you're planning on adding modifications that will increase your engine's horsepower. With the right fuel system upgrades, you can unlock that increased horsepower, torque, improve throttle response, and overall better performance.

When it comes to upgrading your Mustang's fuel system, there are several components to consider. In this article, we will cover the benefits of upgrading your fuel pump, injectors, and fuel lines, as well as the importance of selecting the right components for your specific needs.

Upgrading Your Fuel Pump

One of the first upgrades you should consider when upgrading your Mustang's fuel system is your fuel pump. Your fuel pump is responsible for supplying fuel to your engine, and a high-performance fuel pump can significantly increase fuel flow and pressure.

There are two types of fuel pumps: in-tank and external. In-tank fuel pumps are located inside the fuel tank and are typically quieter and more reliable than external fuel pumps. External fuel pumps have a couple of disadvantages, heat and noise. For a street car, the in-tank option may well be your best bet. It all depends on your goals for the car. Is it a daily driver? Street/Strip fighter or 100% race car? 

When upgrading your Mustang's fuel pump, it's important to choose a pump(s) that can handle the increased fuel demands of your engine. Popular brands such as Aeromotive, Walbro, and DeatschWerks offer high-performance fuel pumps for a variety of Mustang models.

Upgrading Your Fuel Injectors

Upgrading your fuel injectors is another essential step in upgrading your Mustang's fuel system. Your fuel injectors are responsible for delivering fuel to your engine, and larger fuel injectors can supply more fuel for increased horsepower and torque.

When upgrading your fuel injectors, it's important to purchase injectors that have accurate data on flow rates, pulse width, and other important information for the person responsible for tuning your Mustang. This information can help ensure that your engine is receiving the proper amount of fuel for optimal performance.

There are several sizes and types of fuel injectors available on the market, and some of the most popular brands include Injector Dynamics, Ford Racing, and Deatschwerks. It's important to choose a set of injectors that are compatible with your Mustang's engine and the specific upgrades you have made to your fuel system.

Upgrading Your Fuel Lines and Fittings 

Upgrading your fuel lines is another important step in upgrading your Mustang's fuel system. Your fuel lines are responsible for transporting fuel from your fuel tank to your engine, and upgrading to larger diameter fuel lines can increase fuel flow and pressure.

One popular material for fuel lines that is compatible with ethanol-based fuels is stainless steel. Stainless steel fuel lines are durable and resistant to corrosion, making them an excellent choice for high-performance applications.

When upgrading your Mustang's fuel lines and fittings, it's important to choose lines and fittings that are compatible with your Mustang's fuel system and can handle the increased fuel demands of your engine. Popular brands such as Earl's Performance, Russell Performance, and Fragola Performance Systems offer high-performance fuel lines and fittings for a variety of Mustang models.

Upgrading Your Fuel Filters

The fuel filter is responsible for removing impurities and contaminants from the fuel before it reaches the engine. Upgrading to a high-performance fuel filter can improve the overall performance of your Mustang's fuel system by ensuring that the fuel is clean and free of debris.

There are two types of fuel filters: inline and in-tank. Inline fuel filters are located outside of the fuel tank and are typically easier to replace than in-tank fuel filters. In-tank fuel filters are located inside the fuel tank and can be more difficult to replace, but they are often more effective at filtering out contaminants.

When choosing a fuel filter, it's important to choose one that is compatible with your Mustang's fuel system and can handle the increased fuel demands of your engine. Popular brands such as Aeromotive, Fuelab, and WIX offer high-performance fuel filters for a variety of Mustang models.

Using Different Fuel Types

Another important consideration when upgrading your Mustang's fuel system is the type of fuel you plan to use. If you are planning to use a different type of fuel, such as E85, it is important to upgrade your fuel system accordingly to ensure that your Mustang is getting the proper amount of fuel.

E85 requires about 30% more fuel volume than gasoline to produce the same amount of power. This means that you will need to upgrade your fuel pump and injectors, as well as your fuel lines and fuel filter to ensure that your Mustang is getting the proper amount of fuel.

In addition to upgrading your fuel pump and injectors, you may also need to upgrade your fuel lines and fuel filter to ensure compatibility with ethanol-based fuels. Ethanol is known to be corrosive and can damage certain types of fuel lines and fuel filters.

PTFE lined fuel lines are a durable and corrosion-resistant option that is compatible with ethanol-based fuels. When choosing a fuel filter, it's important to choose a filter that is specifically designed for use with ethanol-based fuels. Stainless Steel or Microglass filters are best for Ethanol based fuel.

When choosing between a return style or returnless style fuel system, it is important to consider the specific needs of your Mustang. Returnless fuel systems are generally easier to install and require less maintenance, but they may not be suitable for high-performance applications where fuel demand is higher.

If you're looking for a complete turn-key fuel system, Fore Innovations is a top brand to consider. They offer a range of fuel system solutions for your Mustang, including fuel rails, fuel pressure regulators, and complete fuel systems. Their fuel systems are designed to provide optimal fuel flow and pressure, while maintaining consistent performance under all conditions.

In conclusion, upgrading your Mustang's fuel system can provide a significant boost in performance, whether you're looking for increased horsepower and torque or better fuel efficiency. By upgrading your fuel pump, injectors, and fuel lines, you can ensure that your Mustang is receiving the proper amount of fuel for optimal performance. Be sure to choose the right type of fuel system for your specific needs, and consider investing in a complete turn-key fuel system from a trusted brand like Fore Innovations. As there are a myriad of options, our specialists at Mustang Parts Unlimited can help you choose the right upgrades for your build.