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, ...

It’s a good bet most anyone reading this article is quite familiar with the bright yellow 1957 Chevy 2-door coupe that’s known as Project X. This article on how to install an electric tachometer in a ...

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 ...

Porsche has always had due reverence for heritage and tradition in its designs. It’s been building the same car for almost 60 years, after all. When it comes to the new Cayenne’s interior though, the ...

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!

This Arduino based little digital tachometer was originally created for counting the speed of turntables and fidget spinners. There is another application to consider – a rear wheel tachometer for ...

Many CPU-usage widgets have stylistically borrowed from vehicles, displaying something mimicking the tachometer found in the dashboard. [Pat] took it a step further and tried his hand at re-borrowing ...

Tachometry, the measurement of the speed of spin of rotating objects, is a common application. Some of those objects, however, have quirky aspects that make them extra interesting, even scary. One ...

For those of us who were young, impressionable hot rodders in the '50s and '60s, there was one piece of equipment that was absolutely mandatory for our cars, a Sun tachometer. It seems as though any ...