how much weight, is one HP?? |
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how much weight, is one HP?? |
r_towle |
Aug 20 2008, 10:56 PM
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#1
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Custom Member Group: Members Posts: 24,585 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
So, how much weight is one HP??
Meaning...If I remove XXX lbs its the same as gaining YY HP Rich |
YksKrad |
Aug 25 2008, 06:05 PM
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#2
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Member Group: Members Posts: 72 Joined: 14-February 05 From: Rolla, MO Member No.: 3,602 Region Association: Upper MidWest |
Depends on how you want to define horsepower... Or better to say 'where'...
Horsepower = 550 ft*pounds/second (velocity in ft/second * weight of load)/550 can be considered the horsepower of the car... EX: Say your car can top out at 115 mph with 600 of people plus cargo.... 115mph-> ft/sec~169 soo... (169*600)/550 ~184 hp by that definition.... Hmm... I must have a bad conversion somewhere... Easier when dealing with something spinning due to the nice torque units in there... the 550 constant agrees with dave's equation... google agrees with my conversion sheet....Where am I going wrong? Am I wrong? Is system horsepower generally higher than rotational horsepower... Shouldn't it be less due to more parasitic loss? Am I going insane!!! Anyway reducing the weight of your car will increase the carried load at a given speed meaning a net gain in system horsepower... Basically think of your car as producing the power and not the wheel or engine... |
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