transamz9 wrote:
I would love to turn mine up a little in the future but they say the Aisin doesn't respond well to added power. Do you know of anyone that can get into the Aisin controller to tweak it to respond better?
From what I have been told, there will probably never be a trans tune for the Aisin. The TCM is hard to crack and there aren't enough of them out there to make it worth while. You can add power and probably have the throttle tuned to make it feel a little better, but not much.
Most will just tell you to get a 68RFE truck, slap a $700 Revmax valve body in it to increase the line pressure from 170 psi to 250 psi and you essentially have a trans that is just as good but is tunable.
