41TE/604 operated by Megasquirt

[A.J.]

I'm a little skeptical about the need to account for wear since I've been thinking about it a little. How does any other hydraulic only transmission account for wear and shift timing? Band adjustments ala a413?

I think you're wrong on this. The timing of the clutches is critical with this transmission so accounting for wear is important. It's not like other transmissions so you can't compare it to any, especially the A413. They are pulse width modulated and can't just be slammed on or off like other transmissions.

The same problem has been untouched ever since Una had his van running with 604/Megashift. The available options don't auto-tune for wear. It is possible to make a megashift shift a 604 well for a time, but not possible to make it shift well forever without 'periodic' retuning or writing a whole lot of fancy code.

I do plan on going back in occasionally to make adjustments for wear.