Any internal combustion engine develops maximum power at a certain speed. This is the so-called nominal number of revolutions. Increasing RPM further does not increase power. Our engines can withstand quite high speeds. The valves are driven by pendulum levers or directly from a located (s) camshaft above them (ov). In this case, small masses are set in motion, as a result of which high speeds do not pose a danger to the valve mechanism.
The maximum number of revolutions in the 8-valve engine reaches 6000 rpm and in the 16-valve engine - 6600 rpm. In order to keep you informed 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 meter often actually means 5700 rpm.
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