My setup: 300C SRT8 (06) with AFE S2 and 185 stat
The tune particulars: 91 octane CAI tune with 10% fuel added, raised shiftpoints/rev limit etc.
I was getting KR (4 degrees throughout the run) so I decided to try 94 octane on the 91CAI tune and see if it helped...It did, KR went down to 2 degrees max and likely that was from the shift. (.50-1 degree in other places)
Here is the snapshot from the log: (tested on a closed racetrack)
I've since added 2% fuel to the tune (12% total) and lowered the fan settings slightly and will log again.
I think I'll also try the 93octane tune with 94 octane gas and see how that works today.
I'm in Canada and its very cold up here lately. It was 10-12degrees F but went up to 30 degrees F yesterday. We also have oxygenated gas up here so I had to fatten the tune up a bit to compensate.