Originally Posted by Marlin
Pull your head out of your ass, diesel's aren't about power figures. Torque... talks!
Some people don't realize how the two figures are measured.
For the uninitiated...
Torque is an actual force measurement- it is the force generated by the engine as it spins the crankshaft. Torque is what gives you that "kick in the pants" feeling when you tromp the accelerator and what allows a vehicle to pull a heavy load or accelerate in a tall gear.
Horsepower is a measurement of work done... that is, it is a description of the rate at which the torque is applied. Higher revs = more HP. Diesels generally don't rev very high, which is why they tend to have way more torque than HP. They don't wind out that far, but dang if they can't move your hiney... they just run out of steam pretty quickly.
Horsepower is not an end all be all measurement. I've seen some engines that had good HP numbers but were pretty weak in practice (the Honda S2000 was an example of this, the 9000 RPM engine gave great HP numbers, but unless you wound it up to 7000+RPM, it just wasn't doing much). The Pentastar, for example, is at its best when you're spinning it- let it rev up past 3000-4000 RPM, and it really performs. At lower RPMs, not so much.
This diesel would be about the exact opposite.