Here is a logged example of the problem that is caused when a high power GTR runs the CAS for ignition timing. The graph shows a the CAS error as you go up the gears in my car, although I do not use the CAS to provide ignition timing.
The 0 to 100 scale on the left = 20° of ignition timing which if you look at the trace = 10° of ignition timing wobble
Finding a fix for this problem is straightforward when you have a non plug and play ECU like the Motec or Autronic.
It is not so easy for the Power FC, although I believe RB Motorsport are working on a solution for that ECU as well.
As mentioned earlier, the random ignition timing will give rise to lots of detonation especially up in the higher gears. This is definitely a big problem for RB26 engines.
