Many of us are - or are wanting to - retrofit the 4R70W/4R75W electronic-control transmissions (and other Fod trannys) to an older chassis providing substantially greater strength, more speeds, lower gear ratios, overdrive, and lockup converter, all on-demand.
If going carbureted, stand-alone trans controllers are out there from $700-1200 for the controller and with many the wiring harness is extra. Yikes!
I'm working on an alternative using an MS GPIO board that has been used for other electronic transmissions. It's an assembly kit that you solder-up for less than half the cheapest option out there, including
the case and harness (less trans-end connector). I would like to make this an option (along with pre-assembled units) for us Ford muscle folks, and I can start it with a project I have right now.
To do it, I need some info though. I am missing specific info for:
- The pulse width modulation (PWM) frequency AND duty cycle range of the EPC (Electronic Pressure Control) solenoid.
- Same info for the TCC (Torque Converter Control).
- Transfer function outline for EPC PWM.
I think I have most of the other info I'll need. Some of the info appears to have changed in different years as well. If anyone has or can get this info, I can move this along quickly. I would like to get the first unit together for initial programming in the next 30-45 days if possible. I need 4R70W info first (pre and post '98), and then other types (AODE, 4R75W/E, E4OD, 4R100, 5R55, etc.) will be relatively easy to program from there for other folks.
PS: Other optional features would come along with it, such as full shifter control, or paddle shifters on the steering wheel, LED gear indicators, one-button to switch shift firmness from Marshmallow to Madness, and more.