Originally Posted by
myburb
Thanks for the info on what is going on, ie pressure numbers scaled to electrical load on solenoid. Not knowing the actual sequence of events is why I have been reluctant to change numbers without knowing exactly what they do. It wouldn't take much of a mistake to harm a trans. The pressure added with pe was just one of the areas I was looking at. The actual interest is, the info I get on the internet is the 4l80e has a soft shift 2-3 and my motor puts out more torque than stock and being a towing rig it shifts full throttle at 4100 and I think a little firmer 3 engagement would be beneficial . I do have a dash mounted pressure gauge.