Originally Posted by
Montecarlodrag
You should log with scanner to adjust shift points. If you have a big gap between MPH and RPM shiftpoints it may not shift as desired.
Transmission tuning depends a lot on personal preference, so you must log data to tune it right for you.
You can make a spreadsheet in excel to extrapolate the stock values and adjust them in your tune. Make a few runs and log data and fine tune the shift points until it shifts exactly as you wish.
Remember, the transmission is still a mechanical component, so it isn't very precise. It needs time to shift, components need time to move.