The charge air radiator is located in the intake manifold and cools and compresses the air coming in heated from the turbocharger.
Based on a good filling degree, it is possible to increase the power in existing engines up to 100%. The increase in power depends on the boost pressure, which in passenger car engines is 0.4-0.9 bar (tire pressure is approximately 1.8 bar). If the boost pressure exceeds the value set by the manufacturer, a valve on the turbocharger opens and the pressure is released.
Along with the increase in engine power, the use of an exhaust gas turbocharger also increases the torque, which is desirable from the point of view of smooth engine operation. A prerequisite is that the turbocharger shaft must rotate at a sufficient speed, which guarantees a good filling degree. As a rule, the engine must develop more than 2500 rpm to create a noticeable boost pressure.
The turbocharger is an extremely precise device and must be repaired by a specialist. In principle, it is best to replace a defective turbocharger. The exhaust gas turbocharger is supplied with oil from the engine oil circuit. To ensure sufficient lubrication of the turbocharger, the following points must be observed:
- Only prescribed grades of motor oil may be used.
- Too old engine oil can damage the turbocharger. Therefore, both the oil filter and the oil should be changed strictly according to the maintenance instructions.
- Since even the smallest particles of dirt can damage the turbocharger, never run the engine without an air filter.