Ram 1500 diesel review

jus2shy wrote:

both 6.7's produce far more horsepower at far lower RPM's while the gas motors take a while before they hit their horsepower band. So say you need 200 HP to pull a trailer, the Diesels have that power available at 1500rpm up to their respective redlines. The ecoboost makes that power at 2500rpm while the 6.2L ford takes all the way until 3100 rpm before it's making that power.

Sure.

jus2shy wrote:

This is all assuming a 1:1 engine to drive ratio.

And this is where this line of thinking falls apart.

jus2shy wrote:

Gearing makes up for these deficiencies though but it just shows shy Diesels have so much more oooomph!

It's not a deficiency. It's a difference in the way the engines operate.

I simply don't understand the compulsion to compare these engines at the same RPM. It's like comparing a running back to a wide receiver but never throwing a pass. That's not a deficiency of the wide receiver -- it's a misuse of his abilities. The same is true with running a gas engine at low RPMs when power is needed. Why would you do that?

The entire purpose of the transmission is to put the engine's power to the ground, yet so many people choose to ignore this. A better spreadsheet would be one that shows maximum available power at any given road speed. Do this and you'll find the diesel and gas engines will be running different RPMs (because they'll be using different gears) at the same road speed.

-- Rob