Pilots must diligently check Hobbs and tachometer readings before flights, as these numbers are critical for determining maintenance due dates (ADs, 100-hour inspections) and accurate billing, with ...

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 ...

If you need a portable, handheld tachometer, take a look at the HT-4100 from Ono Sokki Technology. This completely ergonomic device weighs less than 4 oz, so it slips right into your pocket. Setup is ...

This tutorial will guide you through the process of building a tachometer around an Arduino. Tachometers are used to measure rotation rate in Revolutions Per Minute ...

There's Always Been A Bold Line Drawn Between The Detroit-Built, powerful American muscle of years past and today's more efficient, technology-driven imports. But many of the theories and aftermarket ...

RPM stands for revolutions per minute, and in cars, it measures how many times the engine’s crankshaft makes one full rotation every minute and how many times each piston goes up and down in its ...

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 ...

While out for a Sunday cruise in my '65 GTO, I suddenly noticed a serious flutter in the original rally-gauge tachometer needle. That little yellow pointer, which has given so many years of unwavering ...