Why Do you Need a Cold Air Intake System?

Because diesel engines require tight tolerances to achieve and maintain its compression ratio, and considering most diesel engines are either turbo charged or supercharged, the air entering the diesel engine must be as clean and as cool as possible. To improve a turbo charged or supercharged diesel engine's efficiency, the compressed air must be given the opportunity to cool down after compression. These facts point to the importance of integrating a high-grade diesel air intake system and diesel air induction systems. These are found right here at Diesel Preformance Direct.

Air intake systems obviously vary greatly from company to company, but they are always be available in two types; wet or dry.

Wet Filter Intake Systems

In a wet filter intake system, the air is sucked or bubbled through a vessel that holds a bath of oil, such that contaminates are removed by the oil in the filter. The air then flows through a screen-type material to ensure any entrained oil is removed from the air.

Dry Filter Intake Systems

A dry filter system utilizes a material such as cotton or metal to act as a screen, preventing solid particles, such as dirt and bugs, from entering the system but at the same time, allowing the air to move through. This is the more is commonly used system used in automobile.

In addition to cleaning the air, the air intake system is usually designed to grab fresh air from as far away from the engine as practical, usually on the other side of the engine's enclosure. This provides the engine a supply of cool air that has not been heated by the engine's own waste heat.

Why Cold Air?

The reason for ensuring that an engine's air supply is as cool as possible is that that cool air is denser than hot air. This means that, per unit volume, cool air has more oxygen than hot air. Thus, cool air provides more oxygen per cylinder charge than less dense hot air. More oxygen means a more efficient fuel burn and therefore, more power.

After being filtered, the air is routed into the engine's intake manifold by the intake system. The manifold is the component that directs the fresh air to each of the engine's intake valves or ports. If the engine is turbo charged or supercharged, the fresh air will be compressed with a blower and possibly cooled before entering the intake manifold. The intake system also serves lowering the air flow noise.

So whatever Cold Air Filter Intake System you choose, Diesel-Performance-Direct has the system for you. Please use this page to shop around, confident that you are shopping with an auhtorized dealer committed to providing at the lowest prices available.