What’s the difference between horsepower and torque? What does it mean to me? An explanation of horsepower and torque, and a way of explaining it so everyone…
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What’s the difference between horsepower and torque? What does it mean to me? An explanation of horsepower and torque, and a way of explaining it so everyone…
Thank you kind sir! I get a feeling if i watch all your videos then I’ll become an engineer in no time, although that has nothing to do with my current line of work. lol I understand these stuffs alot better now, all thanks to you. cheers and keep up the good work!
well done.
would it be possible to tune a 4 cylinder more to have more torque than HP, I guess what i’m asking what makes a engine produce X amount of Torque and HP, Air fuel ratio, size of cylinders, the amount of throw a piston has?
eloquent and well informed.
another excellent explanation.
thank you
Are you a mechanical engineer? That’s what I’m doing. If you choose to take more mechanics/thermodynamics/vehicle dynamics courses, then this is a lot of the type of stuff you get into. It’s really interesting, keep up the good work dude!
I’m assuming this is an automatic? probably just pressing the gas less.
Nothing to do with this video, but I used to change gear at 3000 rpm now I shift at 2500. What happened ? is it the clutch ?
Could you do a video on why gas engines have a variable torque output based on rpm?
lol to me. Had I watched the video again I would have noticed that he used 2pi and cancelled it. However it’s obvious some viewers couldn’t follow that path so maybe my path will seem more logical to them. math: sometimes so many ways to solve stuff you get an F if your teacher doesn’t get it.
you are a born teacher . I predict you will become a professor not an engineer.
this is the most basic of explanations exactly text book there are ways to bend math. for example the models involved with thermodynamics and the explanation of doing work within a closed mechanical system.Are much better at explaining whats really happening to the energy involved.It could be translated here in anyway it is much more “true to life” here to use mathematical models based on thermodynamics to explain work being done by an engine . for the less than .1% pop Mensa boys and girls club
a circle with a 1ft radius is 2ft wide thus 2pi and 6.28 the engine uses this because it makes two revolutions per complete cycle thats why hes using it or the ones who taught him where using it to teach him so he could teach you
lol very cool it so happened that your reply worked out that way actually no anyway doesnt matter the 6.2833206 etc. ad infinitum happens to be 2pi sorry no pi charcter thats how you solve basic equations cancelling terms thats how he came up with 5252 (33000/6.28=5252)
Holy crap, that mad a lot of sense. THANKS!
Well it comes from the definition of a horsepower given by Watts which is about 150 ftlb over 220 ft in 1 minute. if you apply 150ftlb over a 1 foot radius you get 150 ftlb of torque. a circle with 1ft radius has about 6.28319 ft circumference. 220ft/6.28319 = 35.014 RPM; so you know HP = TQ * RPM/X and X is constant which means X = TQ*RPM/HP. So we have X = 150 * 35.014/1 = 5252.1 and that’s where 5252 comes from.
I watched the video a few times and think you just picked the number 5252 out of thin air haha.
You’ve said 1 hp is 33,000 is over 1 minute. What is 5252 and why that number. I get confused cause you’ve said HP= T * (RPM) * tau(τ) / 1 hp over 1 minute. So what is 5252 how many rpm per seconds? you didnt make it clear where that number came from just said it’s important.
Hp how fast you hit the wall, torque how far you moved the wall when you hit it
Another great video with another great explanation. I try explaining this to honda guys. That “torque matters” and that just because your car revs high doesn’t mean that it’s going to be fast due to it’s inability to cope with variations in terrain, occupancy, or just bad weather conditions (hot mid-summer days). This all goes in one ear and out the other and “vtec yo” is always the response I get XD
What do you mean by 10 seconds?
so 5252 is like 10 seconds or close too?
cool
A simple explanation using water:
Hp(kw) = pressure.
Torque = flow rate
A pressure washer has high pressure, but low flow rate. Bit like your Honda integras and Mitsubishi evos.
A river has low pressure, but extreme flow rate, like your kenworth truck.
Find the middle ground between those and you have a very fast machine – bit like a veyron.
I used to think using this analogy:
Torque = acceleration
HP = Speed
Fun fact: Carol Shelby used to say “Horsepower wins sales, torque wins races”.
i see so u only need enough torque to move the mass of the vehicle and after that u can just stack all horsepower if you want to go fast
The 33’000 comes from the conversion from ft lbf to Nm (0.74), rpm to rps (60) and watts to hp (742). multiplie all together, round it up a bit and you will end up with 33’000.
The basic formula for the poweroutput of a rotational movement is: Torque (Nm) * angular velocity (rad/s) = Power (Watt).
Because these are uncommon units, especially in the US, they made a formula where the conversion are already in it.