
Horsepower vs Torque (A Simple Explanation)
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Date: 2020-07-11
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Comments and reviews: 9
D.
Another very simplified version, is to realize torque is a force, horsepower is not. It is torque that sets the sizes, strengths, and mounting of all drive train components, gearing, shafting, tire size, etc. It is torque (force) moves (accelerates) the car from Newtons first law F=ma. Unfortunately, one must pay to play, and the cost of employing torque (force) is providing sufficient power to maintain the torque over time and distance. That is the horsepower. The more horsepower, the more torque can be sustained. The power comes from burning fuel (. More horsepower, faster fuel consumption. Torque is what we want, horsepower the price we pay. Keep up the good work Scotty!
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Another very simplified version, is to realize torque is a force, horsepower is not. It is torque that sets the sizes, strengths, and mounting of all drive train components, gearing, shafting, tire size, etc. It is torque (force) moves (accelerates) the car from Newtons first law F=ma. Unfortunately, one must pay to play, and the cost of employing torque (force) is providing sufficient power to maintain the torque over time and distance. That is the horsepower. The more horsepower, the more torque can be sustained. The power comes from burning fuel (. More horsepower, faster fuel consumption. Torque is what we want, horsepower the price we pay. Keep up the good work Scotty!
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autos
The difference between torque and horsepower. is time. Torque is an element in calculating horsepower, so there really is no HP vs Torque. Torque is raw force. When raw force meets time, it produces work. HP= torque x RPM / 5252. HP is torque flowing through time causing rotation. Can't separate torque from HP.
When it comes to real world application concerning cars and motorcycles, the real issue is usually power band and gear ratio. Trying to understand HP vs Torque is impossible, except within a persons mind(thinking outside of time. In the outside world, we live in time. Time is the real difference.
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The difference between torque and horsepower. is time. Torque is an element in calculating horsepower, so there really is no HP vs Torque. Torque is raw force. When raw force meets time, it produces work. HP= torque x RPM / 5252. HP is torque flowing through time causing rotation. Can't separate torque from HP.
When it comes to real world application concerning cars and motorcycles, the real issue is usually power band and gear ratio. Trying to understand HP vs Torque is impossible, except within a persons mind(thinking outside of time. In the outside world, we live in time. Time is the real difference.
reply
Ethan
Diesel fuel contains more power per gallon than gasoline. That is one of the reasons Diesel engines get good fuel economy. Ethanol has less power per gallon than gasoline. That is largely why cars using E85 get worse fuel economy than the same car running gasoline.
Horsepower is a measure of work. Torque is a number in an equation. Without a RPM number, torque is meaningless. One million foot pounds of torque at 0 RPM is 0 horsepower.
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Diesel fuel contains more power per gallon than gasoline. That is one of the reasons Diesel engines get good fuel economy. Ethanol has less power per gallon than gasoline. That is largely why cars using E85 get worse fuel economy than the same car running gasoline.
Horsepower is a measure of work. Torque is a number in an equation. Without a RPM number, torque is meaningless. One million foot pounds of torque at 0 RPM is 0 horsepower.
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Lu
Hello scotty mayber u could help me i have a 09 chevy malibu hybrid 2. 4L ive been loocking everywhere for a alternator replacement couldnt find the right one but i did find one that is very similar in every way the only difference is on my old alternator it says 13. 5V and on this new alternator is says 12V can i use this one i wouldnt even care if the hybrid features stop working as long as i can start my car?
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Hello scotty mayber u could help me i have a 09 chevy malibu hybrid 2. 4L ive been loocking everywhere for a alternator replacement couldnt find the right one but i did find one that is very similar in every way the only difference is on my old alternator it says 13. 5V and on this new alternator is says 12V can i use this one i wouldnt even care if the hybrid features stop working as long as i can start my car?
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Spencer
Hey Scotty! I'm looking for my first car and I found a used 1986 Buick Century Estate Station Wagon. The only thing wrong with it is that the engine sounds like it's knocking, and the owner says he wouldn't drive it too far without having it looked at. what do you think? would it be a good first car? and what do you think might be wrong with the engine and what do I need to do to fix it? Thanks, Spencer
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Hey Scotty! I'm looking for my first car and I found a used 1986 Buick Century Estate Station Wagon. The only thing wrong with it is that the engine sounds like it's knocking, and the owner says he wouldn't drive it too far without having it looked at. what do you think? would it be a good first car? and what do you think might be wrong with the engine and what do I need to do to fix it? Thanks, Spencer
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Matthew
Hey Scotty my Honda Civic 2012 revs up to 3000-4000 rpms when I press the brake a little hard especially when going down a mountain and the car is supposed to brake in 131 feet from 60 mph but I feel like it has lost some of it braking power from this issue and now it would brake in a longer distance please help I looked online and some people have this issue but there is no answer.
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Hey Scotty my Honda Civic 2012 revs up to 3000-4000 rpms when I press the brake a little hard especially when going down a mountain and the car is supposed to brake in 131 feet from 60 mph but I feel like it has lost some of it braking power from this issue and now it would brake in a longer distance please help I looked online and some people have this issue but there is no answer.
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Johnny
I'm absolutely loving all these posts I'm learning soooo much more from Scotty than I would from anyone else and if my girlfriend asks me something about cars I try to look up Scotty's videos so it saves me having to tell her LOL
SCOTTY KILMER you sir, are a absolute legend and a truely amazing guy and more than extremely helpful in your videos.
Thank you sooooo much mate.
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I'm absolutely loving all these posts I'm learning soooo much more from Scotty than I would from anyone else and if my girlfriend asks me something about cars I try to look up Scotty's videos so it saves me having to tell her LOL
SCOTTY KILMER you sir, are a absolute legend and a truely amazing guy and more than extremely helpful in your videos.
Thank you sooooo much mate.
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Guillermo
More torque does not mean better acceleration. What matters is how early in the rev range the torque is produced, how much horsepower a car has and how much the car weighs.
It is a common misconception because an engine with more torque USUALLY produces torque sooner in the rev range which gives the impression that more torque means better acceleration.
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More torque does not mean better acceleration. What matters is how early in the rev range the torque is produced, how much horsepower a car has and how much the car weighs.
It is a common misconception because an engine with more torque USUALLY produces torque sooner in the rev range which gives the impression that more torque means better acceleration.
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Mr
This makes sense why the gt350 engine has much more hp than torque. It rotates so fast to make the hp at the top end. And the stroke is short because it uas to rotate so fast thus having torque smaller than the hp rating
Another example would be diesel engines being torque oriented and gas engines being more hp oriented
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This makes sense why the gt350 engine has much more hp than torque. It rotates so fast to make the hp at the top end. And the stroke is short because it uas to rotate so fast thus having torque smaller than the hp rating
Another example would be diesel engines being torque oriented and gas engines being more hp oriented
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