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 ...

For many drivers, engine revving is not necessarily a good thing, as it can signal that you are, perhaps, being overly aggressive behind the wheel, or even worse, that you've got a potentially serious ...

Modern Formula 1 engines are limited to a maximum of 15,000 revolutions per minute (RPM) by FIA regulations, though most teams typically operate between 11,000 and 12,000 RPM during races to stay ...