I talked to Geoff at EPS and he said it would be ok to drive it.

What exactly is changed in the tune when tuning for a converter?

 

I know maybe 1% about tuning the 6L80's honestly, but from what I am aware of the following are some of the parameters that are changed. Although, each book, or tuner, may do it their own way and only use some or none of these items.

TCC pressure: apply ramp, gain, offset
TCC desired slip
TCC apply and release for part and WOT (release timing is an issue I appear to be having)
Torque Mgmt

I believe it is also possible to need to adjust shift points in some cases.

 

Same exact one. It didn't mind the 100 shot at all.

 

I did it on my 4l60, even got on it a lil bit without any issues. Obviously it was much better dd quality witht the tune but u get the idea...

 

Well, the track was packed tonight and I could only get in two passes. Both were spinning some off the line and both missed the 1>2 and 2>3 shifts. For some reason I cannot get the same results with the shifts on the street as I do on the track.

Run #1 12.657 @ 107.60 (60' = 1.844)
Run #2 12.666 @ 106.81 (60' = 1.791)

I think there is a 12.5 in the truck if all things were sorted but I am starting to think the stock trans is the issue for the shifts being missed so badly. Time will tell I suppose.

 

Good times though and good 60 ft.
What do you mean by missed shifts?

 

Yea I'll only be driving back and forth to work for a week on the converter do it won't be too hard on the tranny.

 

It is hitting the limiter at 6500 then shifting instead of shifting at the set mph and rpm shift points.