Yeah, it might be a nerdy gearhead thing, but as enthusiasts we want a lot of information about what our cars are doing. Unfortunately, the manufacturers don't quite see it our way, so cars are ...

A tachometer used to be an accessory added to the dash of only the sportiest of cars, but now they’re pretty much standard equipment on everything from sleek coupes to the family truckster. If your ...

Not only do tachometers look tough hanging from the dash, they also provide a needed service: monitoring the rpm. Keeping track of the Rs on your truck may not seem like a big deal unless you're a ...

The resistor wire is wired in series between the vehicle's ignition switch and coil, so all the power flows from the switch, through the resistor, then to the coil. When a tachometer is added, it too ...