These days, a car gaining a fully digital gauge cluster is hardly news, yet it's a little different in the case of the new Porsche Cayenne. The updated version of the SUV, set to debut next month, ...

Legend has it that the Lexus LFA was so sharp, fast, and exotic that its engine overwhelmed any standard analog tachometer, forcing its manufacturer to switch to a digital display instead. And that ...

With more and more new-car buyers choosing automatic transmissions over manuals, why do tachometers still have such a large presence on dashboards? The tachometer displays engine speed in revolutions ...

for mower engines. A Tachometer is a gauge on a vehicle that tells you how quickly the crankshaft of the engine is turning. It is typically a unit of measure called revolutions per minute (RPM). There ...

If you’re into anything even vaguely mechanical on the broad hacking spectrum, you’ve come into contact with things that spin. Sometimes, it’s important to know precisely how fast they are spinning!

We know that the rated rotational speed of an industrial motor is based on two fixed factors: the number of poles and the supply frequency. So if you install a 4-pole, 480V motor in a 480V, 60Hz ...

Dear Car Talk: I have a new 2017 Honda Ridgeline. The speedometer is digital; it shows numbers only. It has no dial. However, it still has an analog tachometer. The transmission is an automatic ...