So it was tune related??? Interesting..Was it TCM or ECM tune that did it?
Curious as you still shouldn't need a TCM tune to make it shift correct..Was it the ECM tune or TCM tune that fixed the issue?
This was happening on a hot tune by other tuners (IE: canned) too correct?
Considering it was a tune I built that was in the ECM, I'd love to hear some info, even if in private. :thumb:
Its up to James if he wants to put back in a stock TCM tune with the current ECM tune to see if it is still fix'd, It doesn't matter to me either way, what fixed it because the combo together did. I dont see it as a "Tune War" I just had something that I knew from experience that if it shifted poor with that setup it would have to be a "Trans Issue" , I seen that James has been dealing with this issue since May "publicly" and was willing to help "pro bono" to see if we could get some concrete answers as i have a unique situation because i knoiw both sides of the fence tuning and the transmission hard parts , not expert at either but it helps to have insight to the whole problem from every angle.
I understand you wanting to know what fix'd it , it would bother me as well but the info was to hard to gather to not keep it private, a lot of it came from my own race truck and tweaking and tuning to make the trans shift as good as it could this year to help with the Allison holding up to the torture and still have a ways to go , the fact is that some trucks are touchier than others and its easier to fix the tune than yank an intact trans.
And knowing Mike all the precautions to avoid the 3-4 tie up have already been addressed in the initial build , if it had been another builder I myself may have blamed the hard parts but know better coming from Mike , he wrote the book on how to fix that issue , so there would be no gain to yank the trans other to to say "Yep the clutches are good " , bottom line is with a 500 hp truck or 1000 hp truck, trust the shift and what it needs in the fueling to be happy and tune accordingly , there is no one recipe , the one I have is usually pretty good , but there have been a few trucks that it didn't work as good on and had to be tweaked , but that is part of the process.
.
