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 ...

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 ...

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 ...

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 ...

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 ...

UNI-T UT373 Mini Digital Tachometer, 10~99999 RPM Non-Contact Tachometer Speed Meter Speed Gauge with Backlight, Max/Min/Data Hold, Rotating Speed/Count Function Switching Justice Kagan warns Supreme ...