Forum Discussion
- Well so much for those mean looking pickups with the shag nasty looking tires on them. :W
The second set of pulls was really an eye opener for me. Dennis M M wrote:
In the sports car racing world the explanation is:
horsepower determines how FAST you hit the wall,
torque determines how HARD you hit the wall!
In the circle track world its:
HP is how fast you hit the wall
TQ is how far you take the wall with you...Dave H M wrote:
Well so much for those mean looking pickups with the shag nasty looking tires on them. :W
The second set of pulls was really an eye opener for me.
And only 2 horsepower to boot! :BTurtle n Peeps wrote:
Dave H M wrote:
Well so much for those mean looking pickups with the shag nasty looking tires on them. :W
The second set of pulls was really an eye opener for me.
And only 2 horsepower to boot! :B
You mean only two horses to shoe.- I got one you might like;
Torque is how much work it can do at a given rpm
Horsepower is how fast it can do that work at that rpm
It a simple way to help non motor heads understand the relationship between HP & TQ. VernDiesel wrote:
I got one you might like;
Torque is how much work it can do at a given rpm
Horsepower is how fast it can do that work at that rpm
It a simple way to help non motor heads understand the relationship between HP & TQ.
As soon as you tie rpm to torque you have defined horsepower.
Torque in it self does not define work. But horsepower does define work.- I've over heard engineers on my staff argue over this...
Torque is the twisting force on a shaft...say drive shaft for this discussion
HP is the work that drive shaft does...or...work it can do
When the drive shaft has 1,000,000 ft/lbs of torque on it and the drive shaft
does *NOT* turn...there is *NO* HP...
Once it turns, whether a fraction of a turn or whole turns...there is HP being
developed
Because the formula for HP is:HP = torque x RPM divided by 5252
And shows the relationship between torque and HP...why there can be tons
of torque and no HP if that shaft does NOT turn...
Guess which engineer was my fav and which I transferred to another
design team... :B
PS...guess which was the one inherited and which I had hired... :C
They were designing wind-generator gear boxes...main input shaft
was IIRC ~8 inches in dia...and the output shaft about 16 inches
in dia...made from heat treated 4160 and Timken's dia around 20" or so... 4x4ord wrote:
I like to think of torque as the amount of fuel an engine can burn per revolution.
Horsepower is the amount of fuel an engine can burn per unit of time.
That's not bad. I like that.- Like others said it's all about tractive force in a tug of war. I used to have a little diesel 4WD tractor with just 15 hp. Someone with a 24 hp gas lawn tractor challenged me to a tug of war. I told him he didn't stand a chance due to him having much less weight and traction. He insisted, so we hooked up and went. I stood on the brakes and let his tires spin for a few seconds. I then put it in low gear, let out the clutch, advanced the throttle to about 1200 rpm and then very slowly proceeded to drag him across the gravel parking lot, the whole time my tractor's engine producing maybe 6 or 7 hp.
- https://www.edmunds.com/car-technology/the-twist-on-torque.html
