Knowing your driving speed is extremely important for long drives, a trip to the local market, or just a short weekend getaway. Vehicles have various safety features loaded into them, but one of the ...

Nitrous bottles, big blowers, and lumpy cams are the usual suspects to look for when smoking a hot street car out of a dimly lit alley, but why not just look at the gauges? As a hot rodder's general ...

How many times have you found yourself suddenly confronted by a speed limit sign, then in a panic you look at the bouncing speedometer pointer and immediately start doing math in your head. "Let's see ...

Swapping out factory rubber for taller (or shorter) tires affects trucks’ speed-sensor circuits, which can lead to errors in the speedometer readings and everything related to mileage figures from ...

If you've ever performed any kind of driveline or wheel and tire swap, you're probably familiar with speedometer calibration. By stepping up to larger tires and/or wheels, the speedometer reads slow ...

Yes, but just a bit. A car measures the rotations of the axle and wheel. The speed is the distance traveled per hour (speedometer reading). The distance traveled (odometer reading) is rotations ...