[DMCForum] Re: horsepower = torque * RPM / 5252 [off topic ad nauseum ... or ad museum]

["John Dore" <dmcjohn@xxxxxxxxxxx>]

from caterpliiar.com:

My dealer suggests I use progressive shifting to improve my fuel 
economy ... what is it?
Shift keeping rpm to a minimum and use only enough rpm to pick up the 
next gear. Progressive shifting also reduces acceleration time, and 
top gear is reached sooner because it takes less time to synchronize 
gears during shifting and the engine is operating at its highest 
torque range.


John

--- In DMCForum@xxxxxxxxxxxxxxx, Farrar Hudkins <fhudkins@xxxx> wrote:
> Speaking of tractor-trailer drivers, Bill, do you know 
what "Progressive 
> shifting" is? The question came up on "Car Talk" last week and 
nobody 
> seems to know an answer. Somebody recommended it to a truck driver.
> 
> Farrar
> 
> content22207 wrote:
> > Coincidentally I just showed a fellow at the railroad here who 
drives
> > CDL for us these HP threads. He howled with laughter. Tractor 
trailer
> > drivers try to hover around 1,500 RPM. How's THAT for low end 
power...

---

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