Preignition occurs when the combustion chambers ignites prior to the spark event. This causes advanced combustion timing which can lead to heavy engine knock and catastrophic engine damage.

Low-speed preignition can be a serious cause for concern for gasoline direct injection, especially those equipped with turbochargers, where higher-than-normal intake charge pressures can increase ...

The detection of cyclic dispersion, knocking, preignition, misfiring and other phenomena related with abnormal combustion in spark ignition engines has been extensively studied in the past. The ...

This month Willie reviews the "pinging" noise, the difference between preignition and detonation, what causes it, and why its bad for your engine all inside Four Wheeler Magazine.

Preignition, when gasoline ignites before the spark plug fires, can cause significant damage to an engine. When a truckmaker calls for a certain octane level, that is the level at which the engine ...

LOU TROTTIER Special to The Globe and Mail Published June 17, 2017 ...

Mixtures that cause the plugs to read lean might contribute to preignition or detonation. 2. Spark Advance: Ignition timing has one of the greatest effects on heat-range choice.