tachometer

Today, big high quality electronic tachometers are a common sight at drag strips and in fast street cars. Modern electronics have turned tachometers into precise and reliable instruments (provided, of course, they’re installed and wired correctly). There are dozens of different electric (or electronic) tachometers available. Some have more features than others.  We’ll look at

With some exceptions, namely older diesels and Corvettes, most tachometers use electrical pulses from the ignition system to indicate an engine’s rpm. Though this method delivers an accurate reading, installing a new tach can be confusing because of the different ignition systems used by the OEMs and the aftermarket. Tachometer installation can be as simple