Engine Horsepower: Rule of Thumb

[Jagmandave]

"I think most of the differences in torque between diesel and gasoline engines is based on design parameters and not the fuel source."

No need to duck, you got it right! Remember back in the early age of US motoring, the gas engines were very long stroke, high torque, slow rpm engines - like diesels are now - mostly........

 

[slowrev]

Back to the origional topic of the thread. with all other things being equal you will almost always have more pulling power with a diesel than a gas engine. Torque curves are better.

My uncle had 2 identical IH tractors, except one was a diesel and one a gas. The HP specs were almost identical, but he could pull an extra plow with the diesel one. 3 bottom plow with the gas and 4 bottom plow with the diesel.
Ben