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 ...

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 Map shows cheapest and most ...