What is a Cold Air System

The lower the temperature of the cold air going into your engine, the denser it will be. Cold dense air increases the amount of oxygen available for combustion with fuel. If you can get a cold flow into your engine you increase the power output.

The air entering your engine must pass through several devices before it gets to the combustion system and mixes with gasoline to produce power. Most automobile air intake systems are restrictive in nature because of space limitation in the engine compartment, and in order to reduce air flow noise. A restrictive air system slows the flow entering the engine and therefore reduces the potential power of your car. A true cold air system helps restore some of this lost power.

How can you get more cold air in several ways:-

• First, the air around the engine is very hot. If you could pull in air away from the engine, it would be more cold. So one method is to position the air intake further away from the engine heat so that it draws cold air.
• The second method is to increase the diameter of this air intake, which increases the airflow.
• A third method is to design the device with a smoother interior where the cold air flows. Smoother means less restrictions.
• A fourth approach is to have a very direct route, which again reduces any restrictions.
• A fifth method is to "tune" the length of the intake to provide maximum airflow at particular engine speeds. While you are pulling air into your engine you do not want to pull in dirt or other harmful particles. So you need an air filter. Most of these intakes will use a more efficient, less restricting air filter.

Is it all positive, No, there can be some downside. Cold atmosphere may tend to increase the risk of ice building up in chilly weather. A cold system may also draw water into the engine, if you go through water on the road, depending upon where the cold air inlet is positioned.