The Ford Mustang Fox Body platform, produced from 1979 to 1993, remains a popular choice for enthusiasts seeking a classic muscle car experience. One of the most impactful modifications for improving performance is installing long tube headers. This guide dives deep into the world of Fox Body long tube headers, addressing common questions and providing crucial information for anyone considering this upgrade.
What are Long Tube Headers?
Long tube headers are exhaust system components that replace the factory manifolds. Unlike shorty headers which are relatively short, long tube headers extend further down and back, typically exiting near the rear axle. This longer path allows for a more efficient scavenging effect, improving exhaust flow and ultimately increasing horsepower and torque. The increased scavenging effect is achieved by utilizing the pressure waves created by the engine's exhaust pulses to pull spent gases out of the cylinders more efficiently.
Why Install Long Tube Headers on a Fox Body Mustang?
The primary benefit of long tube headers is a significant horsepower and torque increase, especially in the mid-to-high RPM range. This results from the improved exhaust scavenging we discussed earlier. Improved exhaust flow translates directly to better engine breathing, allowing for more complete combustion and a more powerful engine output. This upgrade is popular amongst enthusiasts pursuing performance enhancements, whether for drag racing, road course events, or simply enjoying the thrill of increased power.
What are the Disadvantages of Long Tube Headers?
While the benefits are substantial, long tube headers aren't without drawbacks. One notable consideration is that they often require modifications to the vehicle's undercarriage, such as clearance adjustments or even potentially the removal of parts to achieve proper fitment. They can also produce a louder exhaust note, which may not be desirable for all drivers. Finally, long tube headers can sometimes negatively affect low-end torque, although this depends heavily on the engine's modifications and the header's design.
How Much Horsepower Gain Can I Expect?
The horsepower gain from long tube headers varies considerably depending on the specific engine, tuning, and other modifications. Generally, you can expect a noticeable increase, often ranging from 15-30 horsepower or more at the wheels, though some see even greater improvements. It's essential to remember that this isn't a standalone modification; proper tuning is critical to maximize the gains and ensure reliable performance. Without a proper tune, you may even experience a loss of power.
Do I Need a Tune After Installing Long Tube Headers?
Yes, absolutely. Installing long tube headers significantly alters the engine's air-fuel mixture and exhaust system parameters. Without a proper tune to adjust the fuel delivery and ignition timing, your engine may run inefficiently, potentially causing damage. A professional dyno tune is highly recommended to optimize performance and ensure reliability after installing long tube headers.
What are the Different Types of Long Tube Headers Available for Fox Bodies?
Several manufacturers produce long tube headers for Fox Body Mustangs, each with its own design characteristics and specifications. These variations include different materials (stainless steel being the most common), tube diameters, and collector designs. Some headers may offer more ground clearance than others, a crucial factor for those with lowered suspensions. Researching different brands and models is important to find the best fit for your specific needs and budget.
Are Long Tube Headers Street Legal?
This varies by region and local regulations. Some areas have stricter emissions standards and noise ordinances which may prohibit or require additional modifications to meet legal compliance. It's crucial to research your local regulations and understand the legal ramifications before installing long tube headers.
Conclusion
Long tube headers are a substantial modification that can significantly enhance the performance of a Fox Body Mustang. However, careful consideration of the advantages, disadvantages, and associated costs, including the necessary tuning, is essential before undertaking this upgrade. By properly planning and executing the installation, you can unlock noticeable performance improvements and enjoy the enhanced driving experience your Fox Body deserves.
