Diesel vs gas......................
OK folks, there have been a few to many diesel vs gas threads that have shall we say gone to "Hell and a hand basket"! So if all of you would put in you BEST, no flaming reasons for going gas vs diese...
Forum Discussion
wnjj wrote:azwildcat99 wrote:
HP = Torque * RPM/5252 So unless you are revving your engine up above 5200RPMS or racing F1 at 19k RPMS, HP is largely irrelevant. It's the torque that matters. Diesel or Gas your TV makes more torque than HP at the engine speeds we are pulling at, any of us. Given that, a diesel usually has superior figures (500+ vs 300-400).
What this means is you generate more driveline torque (and therefore more wheel torque) when running in a lower gear than you do in a higher gear. This equalizes things at the wheel for the high-rev'ing gasser running in a lower gear than the diesel. In the end, both are running the same wheel RPM to acheive the same ground speed. The gas engine just uses more of the gearing to trade its high RPM for wheel torque. The ONLY constant is HP from crankshaft to wheel where it's needed (minus some losses due to friction.).
I understand and agree with what you are saying. Your statement above was one of the main reasons why I got rid of my gas engine. That, and it was a 1500 (too small for my TT). I didn't like using those RPMS and gearing to pull grades. Plus there wasn't anything left in reserve. I was out of gears.
As for my diesel decision, I didn't see the jump to a heavier vehicle with less HP (300 vs 315), but a little more trq (335 vs 360) an upgrade. I was considering an 04-08 2500HD 6.0. However, with the diesel and only 45 more horses (360) but double the torque I climb the hills without issue and can always drop down several more gears if needed since the grades only drop me to 4th. That was the basis for my torque argument.
That was just my preference. I don't mind my cars revving, but didn't like my truck doing it. Sounded cool, but not so much while towing.
