Ameer Randolph
Owners of 88-98 GM trucks have been discussing the use of braided lines and AN fittings to replace the factory-fitted fuel supply and return lines that connect to the TBI. Some have suggested that braided lines and AN fittings are a more cost-effective solution than buying replacement parts. One user has suggested that they used a 6AN fitting to adapt the throttle body inlet and outlet, while another has said that they used a 6AN fitting for the sending unit. ICT Billet offers a TBI/Vortec 87-98 Truck 6AN Male Flare Supply Feed Fuel Line Adapter Fitting to Female M16-1.5 Oring Power Steering and Fuel Adapter Thread Connector.
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What You'll Learn
Braided lines from the filter to the TBI
Braided lines are a popular choice for fuel lines from the filter to the TBI. Braided lines, such as stainless steel braided lines, offer a clean look and are known to be durable and well-performing. They are also available in a variety of colours, such as red and blue.
When installing braided lines from the filter to the TBI, it is important to consider the fittings required. Fittings are necessary to connect the braided lines to the filter and the TBI, and ensure a secure and proper connection. Some users have mentioned using AN fittings with their braided lines, while others have used O-ring fittings or metric O-ring fittings. It is important to ensure that the correct fittings are used to avoid leaks or other issues.
One user mentioned that they ordered 20 feet of stainless steel braided lines and the necessary fittings from a local speed shop, spending less than $50 in total. This included a fuel pressure gauge in line, which is an important component to monitor the fuel pressure in the system.
Another user mentioned that they used rubber lines from the fuel cell to the hose and then to the pump. From the other end of the pump, they used a hose to connect to the filter, and then from the filter, they used braided lines. This combination of rubber lines and braided lines ensures a secure and flexible connection, while also providing the benefits of braided lines, such as durability and aesthetics.
It is also important to note that some users have mentioned the difficulty of getting the ends of the braided lines onto the fittings. This process can be challenging, but the end result is well worth the effort, according to those who have completed the installation.
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Fittings for TBI fuel lines
There are various options available for TBI fuel line fittings, depending on the specific requirements and vehicle model. One popular choice is the ICT Billet TBI/Vortec 87-98 Truck 6AN Male Flare Supply Feed Fuel Line Adapter Fitting. This fitting is designed for Chevrolet and GMC trucks from 1987 to 1998 with the TBI fuel injection system. It features a 6AN male flare fitting that adapts to a female M16-1.5 O-ring power steering and fuel adapter. The O-ring included with this fitting is made of FKM material, which can withstand various race fuels and oils. ICT Billet is known for its precision engineering and commitment to quality, making their products a reliable choice for TBI fuel line fittings.
Another option for TBI fuel line fittings is to use braided lines with AN fittings. Some vehicle owners have reported success in using stainless steel braided lines with AN fittings for their TBI fuel lines. These braided lines offer flexibility and can be custom-ordered to ensure a perfect fit. Additionally, plastic braided lines are also available, providing an easy-to-route solution. Gastankrenu.com is mentioned as a source for custom-made fuel lines with the correct fittings.
When considering TBI fuel line fittings, it is important to ensure compatibility with your specific vehicle and engine setup. The fitting sizes and types can vary depending on the make and model of your car. It is recommended to consult with a professional or refer to vehicle-specific forums for accurate information regarding fitting sizes and adapter requirements. Additionally, using high-quality fittings made from premium-grade materials can ensure the durability and reliability of your TBI fuel lines.
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ICT Billet TBI/Vortec 87-98 Truck 6AN fuel line adapter
The ICT Billet TBI/Vortec 87-98 Truck 6AN fuel line adapter is designed for LS and LT swaps. It is a male flare supply feed fuel line adapter fitting that connects to a female M16-1.5 O-ring power steering and fuel adapter thread connector. The product is made from premium-grade materials and is manufactured in the USA. ICT Billet uses advanced manufacturing technologies and laser-scans vehicles to ensure a perfect fit every time.
The ICT Billet TBI/Vortec 87-98 Truck 6AN fuel line adapter is crafted with precision and is designed to provide seamless performance from the start. The product is sold by ICT Billet LLC and ships from Amazon Fulfillment. It is a high-quality, American-made product that simplifies and enhances LS and LT swaps. ICT Billet provides detailed installation guides and world-class service to its customers.
The ICT Billet TBI/Vortec 87-98 Truck 6AN fuel line adapter features an FKM O-ring that can withstand all race fuels (including E85, methanol, and ethanol) and oils. The product is designed for use with adjustable fuel pressure regulators and is compatible with the 1996 Vortec. It is important to note that the adapter is designed for vehicles with a male flare supply feed fuel line and a female M16-1.5 O-ring power steering and fuel adapter thread connector.
The ICT Billet TBI/Vortec 87-98 Truck 6AN fuel line adapter is a reliable and durable product that is backed by ICT Billet's commitment to quality and innovation. ICT Billet is a proud member of SEMA, an elite group of automotive manufacturers. The company provides everything needed for smooth, efficient, and professional LS and LT swaps.
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Fuel pressure and leaks
One common issue with TBI fuel lines is leaks, which can occur at various points along the fuel line, such as at the TBI unit itself, or at the fittings and connections. To address leaks, it's important to use the correct fittings and adapters, such as those with O-ring seals or plastic washers, to ensure a tight seal and prevent fuel leakage. In some cases, adapters or fittings may need to be special-ordered, as they can be difficult to find.
Another consideration is fuel pressure. While excess fuel pressure is not typically a problem, as it is returned to the return line, it's important to ensure that the injectors and computer are functioning properly. If there is an issue with the injectors or the computer, it could lead to dumping fuel or other problems. It is recommended to check the Haynes manual or seek expert advice for troubleshooting guidance.
When working with TBI fuel lines, it is important to use the correct size and type of fuel line. For example, some vehicles may use a 6AN fuel line, while others may use an 8AN or a different size. The size and type of fuel line can impact fuel pressure and flow, so it is important to choose the correct one for your specific vehicle and application. Additionally, using braided hose and AN fittings can provide a more secure and leak-resistant connection compared to rubber hoses.
Overall, when dealing with TBI fuel lines, it is important to consider both fuel pressure and leaks. By using the correct fittings, adapters, and fuel line sizes, you can help ensure a proper seal, prevent leaks, and maintain the appropriate fuel pressure for your vehicle's TBI system.
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$75.99 $82.99
Fuel line kits
Another option is to purchase a custom-made fuel line kit from websites like gastankrenu.com. This website allows you to order fuel lines with the correct fittings for your specific vehicle, including the throttle body inlet and outlet, as well as the sending unit. You can also opt for stainless steel braided hoses or plastic braided lines, depending on your preference and vehicle requirements.
Additionally, there are -6AN adapters available for TBI throttle body fuel fittings on websites like eBay and warrperformance.com. These adapters enable you to attach -6AN hoses or lines to your GM TBI throttle body. They are compatible with all GM 2-barrel throttle bodies used with throttle body injection but not with crossfire injection.
Lastly, Summit Racing offers a range of fuel injection systems and fuel pumps that include TBI fuel lines. These kits may require custom orders, and you can contact their team for more information.
When considering fuel line kits, it is important to ensure compatibility with your vehicle's specific make and model. Additionally, seeking advice from automotive experts or forums can provide valuable insights into the best options available for your needs.
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Frequently asked questions
A TBI fuel line 6AN is a fuel line adapter fitting used in power steering or fuel applications. It is made from aerospace-grade billet aluminum and has a 6AN male flare and a 16-1.5mm female oring.
You can buy a TBI fuel line 6AN from Amazon.com or directly from the manufacturer, ICT Billet.
The TBI fuel line 6AN is compatible with the 87-98 TBI/Vortec truck.
The TBI fuel line 6AN allows for the use of AN fittings and braided hose, which can be more cost-effective and flexible than the original rubber hose.
