Katerina Swanson
Mustang enthusiasts often consider upgrading their fuel systems, especially when seeking more power or wanting to restore older models. A popular topic of discussion is the feasibility of installing a Cobra fuel tank in a Fox Body Mustang. The Fox Body Mustang, produced from 1979 to 1993, is known for its iconic design, and enthusiasts often seek to enhance performance or restore their vehicles. The Cobra fuel tank option is appealing due to its potential for increased fuel capacity and improved cooling for the pumps. However, the installation process can be complex, and enthusiasts debate the best methods for adapting the Cobra tank to the Fox Body's unique filler neck diameter and hose connections.
| Characteristics | Values |
|---|---|
| Fuel tank type | Cobra |
| Car type | Mustang |
| Car model | Fox Body |
| Year | 1979-2004 |
| Engine type | Forced-induction |
| Pump type | In-tank |
| Pump model | A1000, 255 LPH |
| Hose connections | 4 |
| Filler neck diameter | Larger on Fox Body |
| Fuel system upgrade | Yes |
| Installation | Viable |
Explore related products
What You'll Learn
- The 03-04 cobra fuel pump setup has two pumps in the tank
- The cobra fuel tank is a return-style system
- The filler neck on a fox body is a different diameter than 99-04 models
- The fuel pump in a forced-induction engine supplies fuel at a higher pressure
- The 255 LPH pump is sufficient unless you're making over 700 HP without pressurised induction
The 03-04 cobra fuel pump setup has two pumps in the tank
The 03-04 Cobra fuel pump setup is often considered an upgrade for Mustang owners seeking improved fuel delivery and performance. The dual pumps are known to provide enhanced fuel flow, which can be beneficial for engines with higher horsepower requirements or forced induction. By having two pumps, the system can deliver fuel at a higher pressure, ensuring that the engine receives an adequate fuel supply even under demanding conditions.
One of the advantages of the 03-04 Cobra fuel pump setup is its compatibility with certain Mustang models. The Cobra fuel tank is designed to fit into Fox body Mustangs, specifically models ranging from 1979 to 2004. This compatibility allows Mustang owners to upgrade their fuel system without significant modifications to the chassis or fuel tank assembly.
However, it's important to note that upgrading to the 03-04 Cobra fuel pump setup may require addressing potential fuel leaks and variances in pumps and strainers. Trimming or modifying certain components, such as the stock hat, may be necessary to ensure a proper fit and prevent leaks. Additionally, the dual-pump setup may require adjustments to the wiring and fuel level sender to ensure accurate readings and optimal performance.
While the 03-04 Cobra fuel pump setup offers benefits in terms of fuel flow and performance, some Mustang owners have explored alternative solutions. One suggestion is to run an inline pump alongside the existing 255lph pump and upgrade the feed line to a larger size. This option is proposed as a more cost-effective and less labour-intensive approach compared to installing the Cobra dual-pump setup. Nonetheless, the Cobra fuel pump setup remains a popular choice for those seeking the enhanced performance and fuel delivery it offers.
The Benefits of Denatured Alcohol in Your Fuel Tank
You may want to see also
Explore related products
The cobra fuel tank is a return-style system
The Cobra fuel tank is a popular choice for those looking to upgrade their fuel system in a Fox Body Mustang. The Fox Body Mustang is a model that was produced by Ford from 1979 to 2004, and the Cobra fuel tank is a newer fuel tank that should fit the Mustang physically. However, it is important to note that the fuel pump assembly will likely be different for the new fuel tank.
The Cobra fuel tank is also known for its ability to keep the pumps cool. The pumps are located inside the tank, which helps to prevent them from frying by the exhaust. This is in contrast to conventional sumps, which some car owners feel ruin the look of their car.
The Cobra fuel tank also has four hose connections, with two on each side. It is not clear from the sources what these hose connections are for, but one user suggests that they can be removed or capped off if not needed.
Overall, the Cobra fuel tank is a popular choice for those looking to upgrade their fuel system in a Fox Body Mustang due to its return-style system, compatibility with the stock fox filler neck, ability to keep the pumps cool, and other features.
Removing Water from Fuel Oil Tanks: A Step-by-Step Guide
You may want to see also
Explore related products
The filler neck on a fox body is a different diameter than 99-04 models
When upgrading the fuel system in a FOX body Mustang, some owners prefer to avoid having two pumps hanging out of the tank. The 255lph pump is a popular choice, but it may not provide sufficient fuel at higher RPMs. The 03-04 Cobra fuel pump, which uses dual 255 LPH pumps, is an option to address this issue. However, installing this setup requires cutting out the fuel pump mounting area from the Cobra tank and welding it into the FOX body gas tank, which can be a challenging task.
Some owners opt for alternative solutions, such as running an inline pump with a larger feed line or using a pickup tube in the stock tank with dual 255lph Walbro inline pumps. These methods can be more cost-effective and require less fabrication than modifying the fuel tank.
It is worth noting that the 255 LPH pump should be sufficient unless the engine is making over 700 HP without pressurized induction. Additionally, the fuel pump requirements differ between forced-induction and naturally aspirated engines. The fuel pump in a forced-induction engine must supply fuel at a higher pressure, resulting in a lower maximum flow rate capability compared to a naturally aspirated engine.
When considering the installation of a Cobra fuel tank or pump in a FOX body Mustang, it is essential to take into account the specific year and model of the Cobra components, as well as the unique characteristics of the FOX body, such as the filler neck diameter, to ensure compatibility and optimal performance.
Removing the Fuel Tank on a LT150: Step-by-Step Guide
You may want to see also
Explore related products
The fuel pump in a forced-induction engine supplies fuel at a higher pressure
The fuel pump in a forced-induction engine, such as a turbocharger or supercharger, supplies fuel at a higher pressure than in a naturally aspirated engine. This is because the forced-induction engine compresses the air entering the engine, which increases the pressure inside the engine's cylinders. To achieve a proper air-fuel mixture and efficient combustion, the fuel pump must supply fuel at a higher pressure to match the increased pressure in the cylinders.
The higher pressure fuel pump ensures that the fuel can overcome the elevated cylinder pressure and enter the cylinders in sufficient quantities. This results in a more powerful and efficient combustion process, which is the fundamental principle behind forced induction. The increased pressure also helps to atomize the fuel, creating a finer mist that mixes more thoroughly with the air, leading to a more complete and controlled burn.
In contrast, engines that use a carburetor or older fuel injection systems typically operate at lower fuel pressures. For example, carbureted engines often use gravity to feed fuel from the tank to the carburetor, with the tank simply mounted higher than the carburetor. This type of system relies on low-pressure mechanical fuel pumps that operate at around 10-15 psi.
However, modern direct-injection engines require much higher fuel pressures, often up to 30,000 psi or more. These engines utilize high-pressure mechanical pumps mounted on the engine or electric fuel pumps located inside the fuel tank. The use of electric pumps provides flexibility in their placement, as they do not depend on mechanical power from the engine.
The specific fuel pump and pressure requirements depend on various factors, including the engine's horsepower, induction system, and fuel injection type. For example, some Ford Mustang owners consider upgrading their fuel systems to Cobra fuel tanks, which are known for their higher LPH pumps and improved performance. This modification can involve cutting out the fuel pump mounting area from the Cobra tank and welding it into the stock gas tank, ensuring a more efficient fuel supply while maintaining a stock appearance.
Creating a Customized Auxiliary Fuel Tank for Your Motorcycle
You may want to see also
Explore related products
The 255 LPH pump is sufficient unless you're making over 700 HP without pressurised induction
The 255 LPH fuel pump is a popular choice for car enthusiasts, especially those with a Mustang. It is a good option for those who want to upgrade their fuel system without having pumps hanging outside the tank. The 255 LPH pump is considered sufficient for most applications, unless you are aiming for over 700 RWHP without pressurised induction.
The 255 LPH pump is often used in a dual setup, where two pumps are installed in the tank. This provides plenty of volume and ensures the pumps stay cool, as opposed to frying by the exhaust. This setup has been known to safely achieve 1,000 RWHP with some room to spare. However, it is important to note that the factory fuel lines will not be sufficient and an upgrade to the feed line will be necessary.
For those seeking to maximise the potential of their 255 LPH pump, it is recommended to focus on volume rather than pressure. By utilising a boost-referenced regulator, the pressure can be increased, which in turn requires more fuel. This allows the pump to provide sufficient volume without having to also supply high pressure.
In terms of fuel pressure, the 255 LPH pump can achieve around 42 PSI at the base and up to 65 PSI under boost. At 80 PSI, the standard 255 LPH pump will flow around 132 litres (35 gallons) per hour. However, it is important to note that extremely high fuel pressures can torture the pump and may not be necessary to achieve the desired power.
Overall, the 255 LPH pump is a versatile and powerful option for car enthusiasts, especially those with Mustangs. It provides sufficient fuel delivery for most applications and can even be pushed to its limits with some careful modifications.
Fuel's Journey: Aircraft Tank Filling Process Explained
You may want to see also
Frequently asked questions
A Cobra fuel tank can upgrade your fuel system and prevent pumps from hanging outside the tank. This keeps the pumps cool inside the tank, rather than frying by the exhaust.
The fuel pump in a forced-induction engine must supply fuel at a higher pressure than in a naturally aspirated engine. This means that the fuel pump supplying the forced-induction engine will have a lower maximum flow rate capability.
There are online forums dedicated to Ford Mustang owners and enthusiasts where you can find discussions about performance, modifications, and troubleshooting. These forums can provide valuable information and support for your project.
