Cold Air Intake

A cold air intake system moves air to the outside of the car from the engine compartment, allowing cooler air to be sucked into the engine to help with combustion. Cooler air is dense and carries more oxygen to the combustion section, resulting in more power to the engine.

Engine cold air intakes are available in various forms, constructed from rubber, plastic, composite material (Kevlar, carbon fibre or fibreglass) and metal. The most effective air intake system utilises a sizeable air box to complement the engine and extend the engine power-band.

During the mid-1970s to mid-1990s, a majority of vehicles that were manufactured were fitted with a thermostatic air intake system to regulate the temperature of air entering the engine intake tract. When the engine is cold, the thermostatic air intake provided warm air and cold air in case the engine was warm, helping to maximise performance, fuel economy and efficiency.

With the rise of new and advanced emission controls and powerful methods of fuel injection, most modern vehicles do not have this thermostatic air intake system. Instead, the vehicle manufacturing companies have created cold air intake systems that draw from cold, unregulated air.

Notably, these cold air intake systems come with the claim of higher performance and increased efficiency over the older systems.

The snorkel (the opening of the intake to the air entering the system) needs to be large enough to ensure sufficient air reaches the engine under all conditions; from full throttle to when it's idle.

The main part of the engine cold air intake system consists of a long plastic or metal tube that leads to the conical air filter. At times power to the system may be lost at certain engine speeds and gained at others. A cold air intake kit includes the air filter, intake tube, hoses and clamps, the heat shield as well as the washers, and aims to mitigate any of the problems you may usually experience.

In the quest to make vehicles efficient and more powerful, engine cold air intakes are easier to install than most engine modifications and are fairly inexpensive. Not only does a cold air intake system increase airflow to the engine, but it also reduces the air temperature.

The major benefit of a cold air intake system is the increase in acceleration as a result of added torque and horsepower. This is because the more the air in the combustion mixture, the less fuel the engine requires to power itself.

Aftermarket intakes use smooth, large diameter tubes with fewer bends, rather than a box surrounding the air filter. Removal of the air box results in uninterrupted airflow to the engine.

A cold air intake by itself increases the engine power when the throttle is open. Manufacturers claim about a 5-20 percent increase in horsepower when using the cold air intake system, increasing the engine performance.

The function of the air intake is to allow maximum air to reach the engine. Feeding your engine with more air helps in combustion, increasing horsepower in terms of performance and efficiency.

Ask us about how we can fit your vehicle with a performance cold air intake at Power Torque.