QUOTE
M5's all new V10 engine
...'a 12:1 compression ratio ....calls for some special knock protection. The S85 is the first engine to be equipped with a 'full-house' in-cylinder ionisation detector system, using the spark plug as a sensor. It can pick up misfire and any danger of detonation, cylinder by cylinder.
Sounds quite familiar. Am I missing something or havn't Saab been doing this since '93?!...'a 12:1 compression ratio ....calls for some special knock protection. The S85 is the first engine to be equipped with a 'full-house' in-cylinder ionisation detector system, using the spark plug as a sensor. It can pick up misfire and any danger of detonation, cylinder by cylinder.
Nick.