Warm intake is a system which lessens the amount of the cold air which gets into the engine. This is done to increase fuel economy. This system takes the air from the inside of the engine bay. Warm air is less dense, thus it contains less oxygen to burn the fuel.
When the fuel is mixed with the air it will stay more effectively in the suspension than falling out of the suspension and forming droplets on the floor of the manifold. The air is drawn from the outside of the exhaust manifold to increase the temperature of the air as quickly as possible.
Heated air intakes are used with liquid fuels such as petrol, as they do not vapor under the pressure and temperature. Liquefied petroleum gas or the natural gas do not require the use of warm air intakes, they do not require heating as they are already on the gaseous form, they mix with the air effectively and cannot fall out of suspension. Before installing a warm air intake you need to check whether your vehicle is compatible with this application, if it is not advised to use with your specific vehicle, this system may have a negative impact on your engine. Some vehicles are equipped with engines that should not be modified, to increase the gas mileage.
