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Power Strokes
7.3 Aftermarket
Tuning 101 - Thread Merged with Injector Posts
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[QUOTE="cleatus12r, post: 1316718, member: 18093"] Unfortunately, while the control for the transmission DOES exist in the 99-03 trucks and is correct, Ford outsmarted themselves with making so many adders/multipliers/adaptives in the tuning that need to be nullified to get any accuracy that changing shift points DOES do something.......but it's just a rough estimation of what will actually happen depending on acceleration rate, temperature, accelerator pedal position rate of change, etc.. The 95-97 trucks do exactly what you want them to do when you want them to do it but they do lack some really neat features like torque reduction during shifts, PWM torque converter clutch apply, and temperature-based functions. The torque converter clutch releasing on brake application is really easy to fix and they can easily be set up to shift just like a 2001 with a VRAA6S3 (although being able to accomplish the VRAA7S5-current) torque converter clutch release on a forced 4-3 downshift would be nice. It's easy to make a VRAA6S3 (PMT1) do it though. I'm including the TNAA4S2 you're using in with the VRAA7S5 stuff because they are for all intents and purposes identical in the transmission control department. [/QUOTE]
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