Nominal and maximum engine speed (Opel Vectra B)

Any internal combustion engine develops maximum power at a certain speed. This is the so-called nominal speed. Further increase in speed does not increase power. Our engines can withstand fairly high speeds. The valves are driven by pendulum levers or directly from the camshaft located above them. In this case, insignificant masses are set in motion, as a result of which high speeds do not pose a danger to the valve mechanism.

The maximum speed in the 8-valve engine reaches 6000 rpm and in the 16-valve engine - 6600 rpm. In order to inform you about the engine speed, the Vectra has a serial speed meter. Although such a tool has a certain lead - in the upper range of the scale up to 5%. Therefore, 6000 rpm on the counter often actually means 5700 rpm.

Material was taken from a resource: Opelbook.ru