Thursday, Feb 20, 2014 at 11:41
The Ford C4 always was and always will be a highly regarded transmission. Still sought after today by drag racers and the car scene.
Only had one FMX-equipped car and was much the same.
Borg Warner 35 and BW40 was ok I guess, but the ratios seemed to be a bit oddly spaced. I.e. the engine always seemed to be out of step with the trans. This is 6cyl Falcons I'm talking about.
The Traumatic in Dad's early Commodore was a bit loose, not as smooth as the BW35/40 but seemed to do a better job of making the car hustle.
The BTR LE45 4 speed auto in the 1993 V8 Fairmont I had was a brilliant transmission, never carried on or did anything strange, but a previous life of doing 100,000klm around Australia towing a caravan started to show.
4L60E 4 speed auto in the VT Commodore V8 I had was average. Probably tougher than the Ford trans but by no means did the job better. Got really hot and struggled with the torque of the 5.7 V8 that was in the car. Was never as smooth as the Ford one.
4 speed in my BA Ford (95LE??) has probably been the best I've had, like the older Fairmont before it it just works very
well and doesn't do any funny things. Likes a trans cooler though, and doesn't like to tow heavy loads. Put more than a tonne behind it and it keeps popping the oil seal around
the governor. Will go into 'limp
home' mode if driving in say 48 degree heat and you don't do a 'cool down' lap of town first.
We now have a diesel Ford SZ Territory, it uses the Ford 6R80 6 speed auto. It is a licence-built copy of the ZF 6 speed. It can be a bit cantankerous but it does a good job of making the two tonne tank get up and boogie, keeps the engine on the boil if you want and helps make the car more...err, car like to drive, but I have doubts as to its long-term reliability. The benefit of this trans is that it is used in the Mustang and F-Series so if something does break, there is a whole universe of aftermarket strengthening parts available for it ex-US.
I don't think there is any such thing as a "perfect" transmission (maybe a manual lol), it's just that some are better than others.
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