Thanks for the schematic. That's great. Yeah, I couldn't get to it without registering.
I will have to take a look at it when I have an hour.
If you go with a rotary switch for the shifting, it will be simpler. I'm going to put a paddle on my rotary switch with some detents for each gear. I wanted to have a manual style shifter with neutral in between gates like the real thing but not sure that's possible if neutral - drive - reverse is a mechanical linkage. An actuator could do this but I want to keep this simple.
I'm going tomorrow or Friday to talk to a guy here who sells these inexpensive ($50-$75) programmable process control microcomputers. (Like the CLIK) They hook up to your computer and a program assembles the code for you. I'm hoping I can set it up so the TCC lock is automatic but only comes on at a minimum rpm/vacuum in each gear. As far as I know this is exactly the kind of thing they do. I would use the speed sensor, vac gauge and the solenoids' on off signals to set it up.
Issac, Cheap tach is fine. Mine was $30. I hooked mine up to my OBDI terminal.
Driving in the city again today,using the TCC lock. It sure would be helpful to have the timing automated. I'ts very easy to end up in too high a gear. Not a problem though, just throttle off / switch off or shift. It shifts fine with the lock on but I try to keep the torque lowish. I think it slipped once today up a steep hill with lots of throttle. Takes quite a bit to do it.
TCC is fanatstic on the onramp though. Seems effortless and quiet compared to the old buzzy racket. And you can feel the torque curve. Probably not so good with a full load though.
Whew, long post. Signing off...