jcain

Multiplication doesn't mean much to you, eh?

engineermike

It means plenty when used correctly. Something tells me you aren't using it correctly.

I've done more work in this area than you can imagine.

jcain

Yikes, good luck with that.

I work with mega machines daily, I'll take the better gearing over more power.

engineermike

By all means, please demonstrate your math skills for us.

11screw50

so its not only less power than the ecoboost, it is less than the 3.7.

jcain

Are you ****ing kidding me? Normally you're much more rational but if you think a diesel with 30 more lb feet of torque (with probably a broader band too) with two more gears and a rear gear to compliment the broader split and closer ratio can't compensate for some HP with basic torque multiplication then I'm not sure what to tell you. Every ****ing thing to do with moving a vehicle comes back to torque multiplication via trans, rear, and engine torque . Your coveted HP too is figured with the lame friend torque... MULTIPLIED by rpm / 5252... remember?

isthatahemi

Weird. They both matter equally, and there aren't many situations where 6 forward gears are inadequate in a light duty truck.
Besides, everyone will just complain the 8 speed shifts too often, Or lament that they can't tow their house in 8th gear.

It is impossible to multiply torque to make up for lack of horsepower, because said multiplication requires more engine rpm. All else being equal, horsepower can be multiplied into torque, and not vice versa.

I'll assume you know that the same amount of torque at a higher rpm calculates into more horsepower. That same horsepower allows for more gear reduction which multiplies the torque and nets more torque AT THE WHEELS. That is why horsepower matters, plain and simple.

When full throttle, torque number matter as much as the rpm they are produced at, simple math.....

ex1) 700 ftlbs torque at 2626 rpm = 350 hp

ex2) 500 ft/lbs torque at 5252 = 500 hp

So example # 2 can run 50% shorter gears at peak, multiplying torque by 2X over ex1. That means ex2 delivers 1000 AT THE WHEELS. While the torque monster only delivers 700 ft/lbs.

That's why horsepower matters. When not running full throttle, ex1 has the advantage of likely being able to run a lower rpm, and operate with less effort.

hillwood24

A light duty diesel is my kinda truck. Hmmm

Twisty

I think Dodge is just a little too late.
If they had come out with this combo a couple years ago it could have been a proven drivetrain by now and they would have an aftermarket following.
Now add urinea to the cost of fuel which is grossly overpriced and now the question is "What in the &$%# are they thinking?"

engineermike

Bingo!!!