Every ounce of fuel matters these days. Electroair has taken their electronic ignition system for experimental aircraft and certified it for four-cylinder Lycoming engines in most Cessna 152, 172, and 177 (Cardinal) models. The company's testing shows a 10- to 15-percent fuel savings in most applications. In addition to just supplying a hotter, longer-duration spark, the system advances the spark timing for more efficient combustion at altitude.
This is a companion discussion topic for the original entry at https://www.avweb.com/multimedia/podcast/podcast-electroairs-electronic-ignition-system