2 inch tachometer gauge

• 2022-10-24

The 2 inch tachometer gauge is normal size of the auto gauge. We also have other size , such as 2.55 inch. In terms of engine workmanship, the speed of the engine is related to the amount of work done by the engine in unit time. Therefore , when we talk about the power of this engine , we usually take the corresponding speed with us . It can also be seen from the tachometer that it can display the idle speed , and the red line indicates the maximum speed of the engine . The higher the speed, the faster the piston moves , and the higher the requirements for the engine . Therefore, the performance of this engine can also be seen from the highest speed on the instrument.

Generally, when the car starts at 1500 rpm , it is necessary to shift from first gear to second gear , and then the upshift is usually more than 2000 rpm . In normal driving , the speed at any gear should not be lower than 2000 or higher than 4000 . If the speed exceeds this range , we need to downshift and upshift in time . Because ordinary engines can give full play to their advantages at 2000 to 4000 revolutions . If the speed is too low, the fuel will not burn fully , which will lead to carbon deposition . We must all know the harm of carbon deposition . If the speed is too high , the wear of the cylinder will increase , which will damage the engine for a long time.

The engine speed is closely related to the vehicle speed. The higher the engine speed is, the more pulses will be generated. The higher the speed value displayed on the table, the higher the vehicle speed will be. There is a crankshaft speed sensor on the engine, which will send out a pulse signal with the rotation of the engine crankshaft (some gasoline engines take the ignition pulse signal). This signal is transmitted to the engine computer, and a control signal is output after calculation and transmitted to the tachometer to control the rotation of the driving step motor on the tachometer (the pointer is directly installed on the rotating shaft of the step motor). It is the relationship between 2 inch tachometer gauge and the speed.