What is a Windage Tray?

When it comes to optimizing the performance and longevity of your vehicle’s engine, you may have heard the term “windage tray” mentioned in automotive circles. But what exactly is a windage tray, and how does it work? In this comprehensive guide, we’ll delve into the world of windage trays, their importance, and how they can positively impact your engine’s performance and efficiency.

What is a Windage Tray?

A windage tray is an essential component of an engine’s oiling system, designed to improve engine performance and efficiency. This device is typically found in the oil pan and serves as a barrier between the rotating crankshaft and the engine’s oil supply. It’s called a “windage” tray because it helps reduce the effects of windage, which is the splashing and churning of oil caused by the crankshaft’s rapid rotation.

The windage tray is typically made of metal, often aluminum or steel, and is strategically placed just above the oil pan to prevent oil from being whipped up by the spinning crankshaft. This is vital because excessive windage can lead to several issues, including increased oil foaming, reduced engine efficiency, and decreased power output.

How Does a Windage Tray Work?

The primary function of a windage tray is to separate the oil in the oil pan from the rotating crankshaft. As the crankshaft spins, it generates turbulence and splashes the oil, causing it to move away from where it’s needed most.

This can lead to several problems, including:

  1. Oil Foaming: When the oil is agitated by the crankshaft, it can mix with air, creating foam. Foamy oil doesn’t lubricate as effectively as non-foamy oil, which can lead to increased friction and engine wear.
  2. Reduced Power Output: The crankshaft’s resistance against foamy oil can result in power loss, as the engine has to work harder to overcome increased friction.
  3. Inefficient Oil Pumping: The churning of oil can lead to difficulties for the oil pump to pick up and distribute oil to critical engine components, such as bearings and the valvetrain.

A windage tray helps combat these issues by acting as a barrier between the crankshaft and the oil in the pan. It allows the oil to settle and reduces the turbulence created by the crankshaft’s rotation. This ensures that the oil remains where it’s needed, promoting efficient lubrication and reducing power-robbing oil aeration.

Benefits of Using a Windage Tray

  1. Improved Engine Efficiency: With a windage tray in place, the engine operates more efficiently due to reduced oil foaming and improved lubrication. This, in turn, can lead to increased power output and fuel efficiency.
  2. Enhanced Engine Longevity: A well-lubricated engine experiences less wear and tear. By reducing the effects of windage, a windage tray can extend the lifespan of your engine and lower maintenance costs.
  3. Increased Oil Control: Windage trays help maintain a consistent oil supply to crucial engine components, ensuring they remain properly lubricated at all times.
  4. Reduced Oil Contamination: By preventing excessive oil churning and foaming, a windage tray minimizes the risk of oil contamination and the formation of harmful sludge.
  5. Lower Oil Temperature: Improved oil control can also lead to lower oil temperatures, which is essential for engine performance and longevity.

Installation and Considerations

Adding a windage tray to your engine is typically a straightforward process for experienced mechanics.

However, it’s important to consider a few factors:

  1. Compatibility: Not all engines come with windage trays, and not all engines can accommodate one. Be sure to check your engine’s specifications and compatibility before considering installation.
  2. Oil Pan Modification: In some cases, you may need to modify or replace the oil pan to accommodate a windage tray. This can add to the installation cost.
  3. Engine Application: While windage trays are beneficial for various engine types, they are often more commonly found in high-performance and racing engines where every bit of performance matters.
  4. Professional Installation: It’s advisable to have a skilled mechanic install a windage tray, ensuring it is correctly positioned and securely fastened.


In summary, a windage tray is a critical component of an engine’s oiling system designed to enhance engine performance and efficiency. By reducing oil foaming, improving lubrication, and maintaining oil control, a windage tray helps your engine run smoother, last longer, and perform at its best. If you’re looking to maximize the potential of your engine, particularly in high-performance applications, a windage tray is a valuable addition that can contribute to your vehicle’s overall performance and longevity.

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