dynamic ignition timing

Definition

Cars & Driving

  • noun a modern timing procedure using a timing light which is controlled by the ignition pulse for the first cylinder and whose flashing beam is directed onto the timing marks, the rotating mark appearing fixed due to the stroboscopic effect, and indicating ignition advance or retard by its position in front of or behind the fixed timing mark
http://www.dictionarycentral.com/definition/dynamic-ignition-timing.html