v10 torque vrs diesel

Cloud Dancer wrote:
It's silly to say that torque is not power. If you can say that torque can be a very powerful utility, is that OK? If I apply a cheater pipe to my wrench for the purpose of unscrewing a nut, is that not power? I know it's not horsepower(book definition), unless you use a horse that delivers 745 watts of power to turn the wrench, but it's power alright.
Horsepower is an invention which was inspired by an engine which was running, and was producing torque. Mr. Watt derived the horsepower formula, for several reasons, and it has become a standard in many applications,....including for advertising the power of enignes, by manufacturers.
IMO the confusion comes when we try to describe the torque which is produced by an engine that's running. Most people believe you have to take the torque AND the RPM, and inject it into the "textbook" horsepower formula in order to do the calculations that describe amount of work done, OR expected.
Yet, it can be shown that JUST the torque value of an engine, at any given RPM, can be used to calculate amount of work. All you have to do is know that work is equal to force multiplied by distance. Using the torque and rpm of the engine in your motorhome, you can calculate the propulsion force, and then solve for "work". You don't need the horsepower formula for this.
This shows me that just the torque produced by an engine is a power that can do a lot of work.
It's only when you need to do calculations with require horsepower as the standard, that you need to use the horsepower formula.
Personally, whenever I go to select a diesel engine for a motorhome, or earth-moving equipment, I don't even bother asking for the horsepower graph. All I want to see is the torque curve.

Well written ! You dusted some cobwebs off my grey matter. lol

Torque is a force (a twisting force that tends to cause rotation). I too, look mostly at the torque rating of a power plant when buying an RV or any vehicle that will be used for towing. ;)