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An intercooler or intercooler is a type of radiator which ensures that the engine gets cooler air resulting in more power. Intercoolers are used in turbo or supercharger engines. Turbochargers and superchargers have been developed to force more air mass into the combustion chamber. The intercooler compensates for the heat development caused by these ways of pressure filling. Increased air pressure can result in excessively hot intake air, which can reduce the power gains of the supercharger or turbocharger due to the reduced air density. Increased inlet air temperature may also increase the temperature in the cylinders, which may result in detonation, extreme wear, or heat damage to the engine.

By sending this warm intake air through an intercooler, the temperature and pressure drops. The temperature drops because the intercooler catches the wind and cools, the pressure decrease due to the restrictions in the intercooler. If this part is well designed then the drop in temperature can be greater than the loss in pressure, which results in an increase in air density. This increase provides a the gain.

Most intercoolers cooled by the wind (air-to-air intercoolers) are at the front of the front of the car. This is also known as Front Mount Intercooler or FMIC. Another possibility is that there is an air shaker on the bonnet where there is a Top Mount Intercooler or TMIC. The intercooler can also be located at the front in front of the wheels or in the front corner of the bumper where a tilted small intercooler is used as a Side Mounted Intercooler or SMIC.

Intercoolers are therefore used in turbo or supercharger engines. These techniques ensure that more power is removed from the engine. The increase in power can also result in more heat generated by the engine. The intercooler also ensures that the engine is cooled internally. Cooling prevents inflammation and detonation and maintains serious engine damage.

In addition to air-cooled intercoolers, there are water-cooled or air-to-liquid intercoolers. These coolers are cooled by a coolant instead of the driving wind. This system involves more components such as a water circulation pump, radiator, coolant and hoses. This makes the system a bit heavier. However, use can be made of fewer intercooler tubes and ice can be added to the coolant for temporary extra cooling.

Since an intercooler performs a cooling function, it is important that the state is monitored. Usually the cooler is placed in front of the car, there it is easily accessible for dirt and stones. Reduced cooling or leakage can cause power loss. In the worst case, dirt can get through a hole in the intercooler when it enters the engine, which can lead to engine damage.