Zero clearance side seals round 2. (If you don't mind Barry)

[Barry Bordes]

Originally Posted by TitaniumTT

Barry, could you elaborate on #4

Brian,
This screenshot is a little hard to make out but it shows that the closer to 45 degrees (in the 5000 to 8000 rpm range) the more peak pressure is made.
Notice that each ignition event is different and that the best pressure point can be determined comparing pressure to degrees for peak.

Location is the on the bottom chart and in this example we would add degrees of advance as noted then retest.

Barry