Sylvie Willis
Upgrading your fuel lines can be a tricky endeavour. While some car owners may opt for a fuel cell and a custom fuel system, others may prefer to upgrade their fuel tank, pickup, and lines. The process of upgrading fuel lines can vary depending on the car model and the type of fuel lines being installed. Braided fuel lines, for example, offer enhanced protection against abrasion and corrosion, making them a popular choice for those seeking durability. Additionally, PTFE fuel lines are known for their resistance to chemicals and extreme temperatures, ensuring efficient and uncontaminated fuel delivery. Before upgrading fuel lines, it is important to consider the specific needs and restrictions of your vehicle's fuel system.
| Characteristics | Values |
|---|---|
| Reasons for upgrading | Fuel starvation, inadequate fuel system, hardware failure, rust and/or dirt in the tank and lines, corrosion, leaks |
| Risks | Leaks, adverse effects on performance, failure to compensate for fuel rail pressure fluctuations |
| Parts | Fittings, hoses, adapters, Teflon tape, foam pipe insulation, clamps, connectors, fuel filter, fuel pump, fuel regulator |
| Materials | Braided stainless steel, aluminium, rubber, Teflon, ethanol-compatible braided line, PTFE |
| Brands | Summit Racing, AllStar MuscleCar Parts, Quanta Products, Aeroquip, Aeromotive, Bosch |
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What You'll Learn
Braided fuel lines
There are a few things to consider when upgrading to braided fuel lines. Firstly, it is important to choose the right type of fuel line for your vehicle's specific needs. Braided fuel lines are available in different materials, such as stainless steel, which offers high performance but comes at a higher cost. On average, a stainless steel braided fuel line kit can cost anywhere from a few hundred to several thousand dollars.
Another consideration is the compatibility of the fittings. For example, the sealing surface of a factory hardline may be at a different angle than that of the braided fuel line fitting, which could lead to leaks if not properly addressed. It is also important to note that braided fuel lines can degrade in similar ways to rubber lines if they do not have Teflon (PTFE) internals.
When upgrading to braided fuel lines, it is crucial to follow the specific instructions for your vehicle and the product you have purchased. Here is an example of a braided fuel line upgrade process for reference:
- Undo the stock hardline coupler from the fuel tank to the stock fuel filter with a 17mm wrench on the left side and a 14mm on the right.
- Remove the two 12mm bolts and the bottom fuel filter banjo bolt (17mm wrench).
- Remove the stock line, being careful not to scrape your knuckles.
- Apply Teflon tape to the stock fitting for a leak-free seal.
- Install the fuel filter adapter and add Teflon tape to the bottom side.
- Tighten the 90-degree fitting, being careful not to overtighten to avoid damaging the fittings and creating a leak.
- Add foam pipe insulation to protect the braided line from rubbing.
- Adjust the large fuel pipe and loosen the 10mm nut for more room if needed.
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Rubber hoses
Rubber fuel hoses are a common choice for older vehicles and diesel industries. They are also used in vehicles that require a fuel hose that needs to be moved all the time. Rubber hoses are easy to install and are typically connected using standard barbed fittings and fuel line hose clamps.
When choosing a rubber fuel hose, it is important to select one that is rated for fuel or meets specific SAE grades. For example, the SAE J30R7 is carburetor-rated and suitable for pressures up to 50 psi, while the SAE J30R9 is fuel injection-rated and can handle up to 100 psi. It is worth noting that rubber hoses have some drawbacks. They start degrading as soon as they come into contact with fuel and are susceptible to cuts, nicks, and other abrasions. Additionally, they may seep fuel and cause a smell in the vehicle or garage.
To install a rubber fuel hose, you will need to remove the old fuel hose and disconnect it from the supply side of the fuel pump. This may require lowering the fuel tank and removing the fuel tank straps and mounting bolts. Once the old hose is removed, you can place a drip pan under the fuel tank to catch any spills. Next, you will need to connect the new rubber hose to the fuel pump using fuel line hose clamps. Ensure that the hose is securely clamped to prevent leaks.
When working with rubber fuel hoses, it is important to consider the entire fuel line. If one hose is damaged, it is recommended to replace all the hoses on the supply line, return line, and vapor line. This is because rubber hoses tend to degrade over time and should be inspected regularly. Additionally, when connecting the rubber hose to a steel line, it is crucial to ensure that the steel line is clean and free of rust. The end of the steel line should be flared to create a secure connection with the rubber hose.
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Fuel starvation
To prevent and address fuel starvation, pilots and maintenance crews must be vigilant in their monitoring and maintenance of the fuel system. This includes regular inspections of fuel gauges, filters, and fuel lines, as well as staying up-to-date with aircraft maintenance procedures and adhering to standard operating procedures during flights.
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Fuel filter
The fuel filter is an important component of your vehicle's fuel system, which includes the fuel tank, fuel lines, injectors, and other parts that work together to ensure smooth and efficient engine operation. The fuel filter is positioned between the fuel pump and the fuel injectors, with the primary function of filtering out rust, scale, dirt, and other impurities from the fuel. This filtration process is crucial as even the smallest contaminants can clog up your fuel system, particularly in modern fuel-injection cars.
Upgrading your fuel filter can enhance the overall performance of your vehicle's fuel system. While some fuel filters are mounted inside the fuel tank and may not require regular replacement, others are located along the fuel line on the bottom of the car or in the engine bay. It is important to refer to your vehicle's service manual to determine the exact location of your fuel filter. Upgrading or replacing your fuel filter can be done by following these general steps:
Firstly, it is recommended to refer to your vehicle's owner's manual to understand the manufacturer's recommended filter replacement intervals and specific instructions for your make and model. On average, it is suggested to replace the fuel filter every two years or 30,000 miles, but this may vary depending on the vehicle. Additionally, you may need to replace the filter if you notice any issues or if you accidentally put the wrong fuel in your tank.
Once you have determined the need for an upgrade or replacement, follow these steps:
- Start your engine and let it idle until it stalls. This will help release fuel pressure.
- Turn off the ignition.
- Disconnect the battery ground cable (marked with a minus sign) and set it aside, ensuring it doesn't touch any metal surfaces.
- Raise and support your vehicle securely. If the fuel filter is located on the underside of your vehicle, you may need to jack it up for easier access.
- Place a drain pan or bucket beneath the fuel filter to catch any fuel that may leak or spill during the detachment process.
- Locate the fuel filter. It is usually found either along the fuel line on the bottom of the car or in the engine bay.
- Disconnect the fuel tube fittings from the filter and loosen the clamp.
- Remove the old filter by pushing the release buttons on either side. Be careful not to kink plastic fuel lines during this step.
- Install the new filter. Ensure that the new filter has an arrow indicating the direction of fuel flow, which should always be towards the front of the vehicle.
- Use the fittings that came with the new filter to attach it to the fuel line securely.
- Reattach the clamp to hold the new filter in place.
- Start the engine and check for any leaks.
- Dispose of the old fuel filter properly as it is considered hazardous waste.
By following these steps and referring to your vehicle's specific instructions, you can successfully upgrade or replace your fuel filter, ensuring optimal performance and a smooth-running engine.
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Fuel pump
Upgrading your vehicle's fuel system can be a complex task, and it is important to do your research first. The fuel system is responsible for delivering the right amount of fuel to the engine, and it is made up of several components, including the fuel pump, fuel lines, fuel injectors, and the fuel pressure regulator.
The fuel pump is one of the first items to be upgraded when modifying your engine and increasing airflow capability. When choosing a new fuel pump, it is important to select one that can flow enough fuel to meet your needs. It is recommended to opt for a slightly larger pump than you think you need, but be cautious as this can also be overdone. A larger fuel pump will require upgraded wiring to supply it with enough power, which may result in the loss of the factory fuel pump speed control. This, in turn, can lead to the pump running at full speed all the time, causing increased pump wear and heating of the fuel.
Additionally, an upgraded fuel pump may deliver so much fuel that the factory regulator cannot handle the excess, resulting in higher than desired fuel pressure. This, in turn, can cause the injectors to spray more fuel than intended, leading to an overly rich air-to-fuel ratio and a poorly running engine. To avoid this, an aftermarket fuel pressure regulator capable of handling higher fuel volumes should be installed alongside the new fuel pump.
It is also important to note that simply installing a new fuel pump or larger fuel injectors without upgrading the entire system can result in poor engine performance. Therefore, it is crucial to plan and research the appropriate upgrades for your specific vehicle and needs before making any changes.
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Frequently asked questions
Upgrading fuel lines can help prevent fuel starvation, which can cripple your car engine. It can also help prevent corrosion and rusting in the fuel tank, which can cause the engine to starve for fuel.
Aeromotive offers a range of fuel line options, including braided fuel lines, PTFE fuel lines, and traditional fuel line hoses. Braided fuel lines offer enhanced protection against abrasion and corrosion, while PTFE lines are resistant to chemicals and extreme temperatures.
If you find yourself having to change your fuel filter more often, this could be a sign that your tank and lines have a significant amount of rust and/or dirt in them. This can reduce the fuel line and cause the car to starve for fuel.
It is important to ensure that the fuel lines are compatible with your vehicle's fuel system. For example, the sealing surface of the flare fitting on the factory hardline may be different from the sealing surface of the fittings on the new fuel lines.
