4l80e parameter question

[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.

[96lt4c4]

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.

look up the dual feed mod for the 400/4L80E. That will firm up your 2-3 shift. I did this to mine and my 2-3 is the firmest shift I have. I also removed the cushion spring in the direct clutch and added another steel and friction for a total of 6. If I had to do this over i would have left the cushion spring in and just do the dual feed mod. Mine shifts pretty hard sometimes.