Pre-ignition for an automobile engine to continue on for thousands of kilometers with mild detonation, pre-ignition can destroy an engine in just a few strokes of the piston. Pre-ignition Pre-ignition (or preignition) in a spark-ignition engine is a technically different phenomenon from engine knocking, and describes the event wherein the air/fuel mixture in the cylinder ignites before the spark plug fires. Pre-ignition is initiated by an ignition source other than the spark, such as hot spots in the combustion chamber, a spark plug that runs too hot for the application, or carbonaceous deposits in the combustion chamber heated to incandescence by
Detroit Ignition Detroit Ignition The Detroit Ignition is a dormant American indoor soccer team that has played three seasons, most recently 2008–09. In April 2006, Greg Bibb, president of Hantz Group Sports and Entertainment, introduced the teams as a new Major Indoor Soccer League expansion team. They played at the Compuware Sports Arena in Plymouth Township, Michigan. Their first season was 2006–07 MISL season. After the 2007–08 MISL season, the league folded. Soon afterwards, the Ignition joined the Xtreme Soccer League. The Ignition ended the 2008–09 campaign in first place which netted them the XSL title. The XSL went on "hiatus" after