After the engine is started, the turbine starts to rotate, but what we usually refer to as intervention refers to the amount of exhaust gas from the engine reaching a certain speed, which can effectively drive the turbine to rotate; The speed at which a noticeable "boost effect" is achieved is related to the engine displacement. Generally, the larger the displacement, the lower the intervention speed;

The gradual increase in boost pressure occurs from the moment the engine starts turning the turbine to the moment when the officially announced engine torque reaches a relatively high level (235Nm/1600rpm). However, due to significant differences in the driver's subjective perception of operation and actual road conditions, the intervention speed of the turbocharger varies slightly

The purpose of turbocharging is to supply additional air to the engine so that it can burn more fuel; The more fuel burned, the greater the power that the engine can generate.