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Ignition Timing

Model 911 uses Digital Engine Electronics (DME). With this system ignition timing is controlled electronically and no timing adjustment is necessary. Crankshaft pulley has mark 26 degrees BTDC as well as TDC mark.

IGNITION TIMING (DEGREES BTDC @ RPM)

Application Timing RPM Setting
911 Carrera 780-820 (1) 1-5° ATDC
(1) No adjustment required,
Fig 1: Ignition Timing Mark Location
G46627Courtesy of PORSCHE OF NORTH AMERICA. INC.