 how much weight, is one HP?? |
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| r_towle |
 Aug 20 2008, 10:56 PM
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Custom Member  Group: Members Posts: 24,705 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States 
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So, how much weight is one HP??
Meaning...If I remove XXX lbs its the same as gaining YY HP Rich |
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| YksKrad |
Aug 25 2008, 06:05 PM
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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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Posts in this topic
r_towle how much weight Aug 20 2008, 10:56 PM
championgt1 Not sure if this is what you are looking for or no... Aug 20 2008, 11:15 PM Dave_Darling Your question is very parallel to the old LBJ:
Q:... Aug 20 2008, 11:21 PM Mike Gilbert i have heard losing 10lb is like adding 1 hp. or 1... Aug 20 2008, 11:25 PM Todd Enlund It's not a straight x=y equation... you have t... Aug 21 2008, 12:08 AM
computers4kids
It's not a straight x=y equation... you have ... Aug 25 2008, 07:23 PM plymouth37 Here is the formula I am using for my project.
Kee... Aug 21 2008, 12:38 AM Todd Enlund
This means that for every 5.9 pounds the car drop... Aug 21 2008, 01:01 AM plymouth37 I made an excel program that automatically calcula... Aug 21 2008, 01:26 AM Phoenix 914-6GT And sometimes the best weight to lose is behind th... Aug 21 2008, 02:13 AM ArtechnikA and there's all kinds of weight...
rotating m... Aug 25 2008, 05:18 PM r_towle I was just looking for a ballpark....:lol:
I thou... Aug 25 2008, 06:10 PM Todd Enlund
I was just looking for a ballpark....:lol:
I tho... Aug 25 2008, 06:29 PM J P Stein What Rich has written is true, simply put, all wei... Aug 25 2008, 07:31 PM Joe Ricard I don't think anyone mentioned where the weigh... Aug 25 2008, 09:00 PM Andyrew The other thing to note in taking weight off is ho... Aug 26 2008, 11:52 AM |
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