Originally Posted By: 440Magnum
Originally Posted By: demarpaint
I've always had one vehicle in the fleet with a M/T. I really enjoy driving them. But I can honestly say the A/T has come a long way. Finding one that doesn't constantly up and downshift, and lock and unlock the T/C on every incline is a plus.
I would make that read, 'The AT has come a long way BACK.'
The AT worked very well in the 1960s- if you've ever driven a not-worn-out properly working A727 Torqueflite, Ford C6, or GM TH400, it just *works*. Shifts are firm and lightning fast, and it rarely 'hunts.'
The problems came when more features like 4,5, and 6 gears, lockup torque convertors, etc. came along and engine torque went down. Then you got slushy, hunting-prone, greeeeasy-slow shifting automatics (well, some of the GM TH400s were always 'tuned' that way for a "luxury" feel, but not all.)
But the 60s ones were horribly inefficient and heavy. What we've got today is all the good without the loss of efficiency. I know the "performance" guys like to go in and disable it with tuners, but the torque management algorithm that reduces engine output while the transmission is in the act of shifting is an awesome boon for automatic transmission performance and longevity. It lets the shifts be lighting-fast without rattling your fillings and without the engineers having to oversize the clutch packs to be able to absorb the power of a full-throttle shift. And today they are also programming automatics so that the torque convertor doesn't unlock and re-lock every time you hit a pebble in the road or sneeze and wiggle your foot on the accelerator the way they did in the 90s...
You're right! I grew up with and owned vehicles equipped with the C6, A727, and the Turbo 400, along with a few C4's which wasn't as good. They worked quite well. If I had to pick a favorite it would be a tough choice but I think I'd go with the Torqueflite A727 or the C6. They were all good, and lasted. Fuel economy was lacking but what the heck.
I drove a few 8 and 9 speed A/T's and wasn't thrilled, but nothing from 2015 or 2016 yet. I do enjoy a good 5 speed A/T, geared so it stays in OD and isn't constantly unlocking the T/C.