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 ...

They say knowledge is power but when it comes to horsepower, you need to know what’s going on underhood at any given moment. It doesn’t matter if it’s a race car or your daily driver, having vital ...

I doubt if a racer or rodder who consults that big Auto Meter tachometer staring them in the face realizes the company that built it began as a backyard family business in Arlington Heights, Illinois, ...

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 ...