Torque.... how much is needed for a pickup ?

Golden_HVAC wrote:
I remember the 1986 F-250 6.9L diesel, without a turbo, and Ford had to limit the torque to only a few hundred foot pounds, due to the transmission not holding up to much more power. Aftermarket turbochargers added a LOT of power, but you could only use it with a manual transmission, and even that did not hold up well due to the transmission limits. Back in 1986, the 460 gas engine was the big dog trailer puller. The deisel was not king of the pickup hill just yet. By 1993, with the factory turbo on the new 7.3L engine, and improved C6 as well as a new 4 speed automatic, the diesel was making more power, and the transmission holding up to that factory power rating. Still aftermarket "Improvements" in HP and torque would be able to put damaging horsepower through that transmission, and they did not tend to last more than 100,000 to 135,0000 miles.

Transmissions have been improved a lot, and now can handle 600+ foot pounds of torque.

Fred.

:h :h Lets keep this real.

How could a C6 in a 1970 Mach I hold almost 450 ft/lbs of torque but "Ford had to limit the torque to only a few hundred foot pounds, due to the C6 transmission not holding up to much more power" at half the torque? Every 6.9's put out under 200HP so they were not a power house by no means.

And how on earth did the T400 hold up to the 500 ft/lbs of torque the Olds 455 put out? Those cars routinely pulled very big trailers of the day.

For all those that are complaining about too much power and torque. With a diesel, you do know that you control your fuel mileage with your right foot don't you? You also should know that you can get a de-tune or de-rate program written for your engine don't you? A friend did that with his Volvo and is now claiming 12 MPG towing a BIG trailer.

Or you can buy a brand new 240 HP diesel in just a few months. That should make everybody happy. :)