From: David Cole (DavidCole@tk7.net)
Date: Fri Jul 04 2003 - 07:47:32 PDT
The only way you can "lose" power is via friction. No friction, no power
loss. Hence the length of a driveshaft or axle will not cause a loss of
power. (Unless you want to count the additional surface area contacted by
the driveshaft by the air..... that power loss negligible considering that
the other losses are so great ) Now if additional bearings are required,
that might be a different matter, but again that would probably again be
considered negligible unless the bearing was bad and causing a considerable
amount of drag. (;->)
You may be getting torque capacity confused with horsepower. Typically the
longer the driveshaft the less torque capacity. Excessively ong
driveshafts act like springs, they "wind-up" and become unstable and
useless as a driveshaft.
Dave
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
On Thu, 3 Jul 2003 19:06:12 -0700 (PDT), Employee@MilVeh.com
<milveh@sbcglobal.net> wrote:
> OK, maybe I am totally off base on this one, but for
> years I have been advised there was relationship to
> axle length and torque (same for drive shaft length).
> And as I recall it goes something like this, the
> longer the distance from the power source the greater
> the loss of torque. Seems like there was a rule of
> thumb, like X percent of loss in torque per X distance
> of drive shaft and axle length. I.e. the drive shaft,
> axle length affects power and mileage.
>
> So, does anyone on the list have any additional
> information on this subject or perhaps the formula for
> computing a loss of power over a given distance of a
> specific dia. drive shaft? Or.. gulp, is this an
> urban legend?
>
> Thanks... Jack
>
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-- Dave
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