Ever since the first race cars were built, it's been helpful for drivers to know their engine speed. It may sound obvious, but engine power is always a function of engine speed, so accurately knowing ...

Every Hot Rod should have a tachometer, and if yours didn't come with one you've got a ton of options. With a Benjamin as the budget, we decided to test seven models from Summit Racing to see how ...

Pilots must diligently check aircraft Hobbs and tachometer readings against dispatch records, as these numbers are crucial for accurate billing, logging flight time, and complying with critical ...

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 ...