I have only made two full quarter mile passes on my 4L60e with 3600 converter.
I am looking for other WOT 4L60e scanner log files with the transmission input and output shaft rpm's logged.
If you post your log file I will prepare a 1-2 and 2-3 shift time chart as shown below.
The two charts below show the shift time to complete on my 2002 Camaro on a 11.40 pass.
Hoping to see a few other logs to see what is typical or normal time for shift to complete.
The chart is prepared by exporting scanner log file to excel.
I will do this task and post it here if you can provide the log file.
1140 1-2 shift slip.jpg
1140 2-3 shift slip.jpg
EDIT: December 11, 2023
The 4L60e in my car does NOT have the capability to report input shaft data, so this analysis is misleading and NOT representative of actual transmission slip.