Re: [DMCForum] Explaining HP to Jim Strickland for the Last Time (Hopefu
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Re: [DMCForum] Explaining HP to Jim Strickland for the Last Time (Hopefully)
- From: Jim Strickland <ihaveanaccount@xxxxxxxx>
- Date: Tue, 13 Jan 2004 04:44:59 -0500
Consider my 3 rotor Delorean VS your 1985 F150
My car: 300 hp, 297 ft-lbs of torque
your truck: 170hp, 285ft-lbs of torque.
Whose vehicle can move a load of a certain weight faster? MINE. Even if
you had 297ft-lbs of torque, my car will still smoke your F150 with any
haul weight, assuming identical gearing. After 5252RPMs, my horsepower
AND torque will greatly outmatch your F150.
Andrei's porsche is 208HP, how is that double 170?? Maximum HP and
maximum torque are totally unrelated. Torque is only important when
comparing similar horsepower vehicles.
On Tue, 13 Jan 2004 07:23:09 -0000 "content22207"
> Consider my trusty 1985 F150 (4.9 liter inline 6):
> 170 maximum HP
> Sounds pitiful, eh? Andrei's Porsche is advertised with nearly twice
> the HP. Makes my truck sound very unpowerful in comparison!
> Yet it was able to pull 5,000 lbs of Lincoln & dolly over the
> mountains at 25 mph. How could that be?
> The answer:
> My 170 max HP is produced at 3,600 RPM -- probably half the engine
> speed of Andrei's Prosche at it's maximum HP rating
> At a mere 1,800 RPM my truck produces 285 lbs of torque -- more
> at the crankshaft than Andrei's Porsche will ever produce, no matter
> the engine speed
> Andrei's Porsche, bless it's little German heart, has very little
> power in the RPM range where loads are hauled. With 5,000 lbs
> to it, I don't know if he could even let the clutch out without
> stalling. I absolutely guarantee he couldn't reach his power band
> pulling such a load over a mountain.
> Andrei's Porsche has power, don't get me wrong, but only after he's
> rev'ed it very high. Until then, he has very little power.
> Torque, torque, torque.
> Bill Robertson
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