Dyno Test: How a 75mm Jlt Throttle Body Adds 18 Hp on a 5.0 Mustang

The quest for more horsepower is a common pursuit among Mustang enthusiasts. One of the most effective upgrades is the throttle body. In this article, we will explore how a 75mm JLT throttle body can add 18 horsepower to a 5.0 Mustang, based on a recent dyno test.

Understanding Throttle Bodies

A throttle body is a critical component of an engine’s air intake system. It controls the amount of air that enters the engine, which directly affects performance. Upgrading to a larger throttle body can improve airflow, which can lead to increased horsepower and torque.

The 75mm JLT Throttle Body

The JLT 75mm throttle body is designed specifically for the 5.0 Mustang. It features a larger diameter than the stock throttle body, allowing for greater air intake. This increase in airflow can help the engine breathe better, especially at higher RPMs, resulting in improved performance.

Dyno Testing Methodology

To determine the performance gains from the 75mm JLT throttle body, a dyno test was conducted. The test was performed on a stock 5.0 Mustang with baseline runs recorded before and after the installation of the throttle body. Here’s how the testing was carried out:

  • Baseline runs on the dyno to measure initial horsepower and torque.
  • Installation of the 75mm JLT throttle body.
  • Subsequent dyno runs to measure performance after the upgrade.

Results of the Dyno Test

The results of the dyno test were impressive. The installation of the 75mm JLT throttle body resulted in an increase of 18 horsepower at the wheels. This gain was observed across a range of RPMs, showcasing the throttle body’s ability to enhance performance throughout the power band.

Baseline Performance

Before the installation, the stock 5.0 Mustang produced a baseline of approximately 400 horsepower at the wheels. This figure is typical for a well-maintained 5.0 engine, providing a solid starting point for performance modifications.

Post-Upgrade Performance

After the installation of the JLT throttle body, the dyno revealed a new peak horsepower figure of 418 at the wheels. The increase of 18 horsepower demonstrated the effectiveness of the throttle body upgrade, particularly in enhancing throttle response and overall engine efficiency.

Additional Benefits of the Upgrade

Aside from the horsepower gains, there are several other benefits associated with upgrading to a 75mm JLT throttle body:

  • Improved Throttle Response: The larger throttle body allows for quicker airflow, resulting in a more responsive acceleration.
  • Enhanced Engine Efficiency: Better airflow can lead to improved combustion, which can enhance fuel efficiency.
  • Compatibility with Other Mods: The throttle body upgrade works well with other performance modifications, such as cold air intakes and exhaust systems.

Installation Process

Installing the 75mm JLT throttle body is a straightforward process that can typically be completed in a few hours. Here’s a brief overview of the steps involved:

  • Disconnect the battery to ensure safety during installation.
  • Remove the stock throttle body and intake manifold as necessary.
  • Install the JLT throttle body, ensuring all gaskets and seals are properly placed.
  • Reconnect the battery and perform a throttle relearn procedure.

Conclusion

The dyno test clearly demonstrated that the 75mm JLT throttle body can effectively add 18 horsepower to a 5.0 Mustang. This upgrade not only enhances performance but also improves throttle response and engine efficiency. For Mustang enthusiasts looking to boost their vehicle’s performance, the JLT throttle body is a worthy investment.