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



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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