Torque vs. HP Revisted

[Jaydee]

You can multiply torque with gearing, but you can't multiply HP. The higher the gear ratio, the higher the torque.
JD

[fordracing65]

Just try to get 600hp and 600ftpds torque by 6000rpm's and you will be fine...

[lovehamr]

Originally Posted by fordracing65

Just try to get 600hp and 600ftpds torque by 6000rpm's and you will be fine...

Yup!

[lovehamr]

Originally Posted by Jaydee

You can multiply torque with gearing, but you can't multiply HP. The higher the gear ratio, the higher the torque.
JD

But that higher torque only matters if it's measured over time, which means its power. No matter how you cut, slice, chop, filet, churn or mix it, if you measure it over time - its power performing work. Changing the gear ratio only changes the apparent rpm/speed in which the work happens.

Nearly everyone here is actually talking about POWER in certain rpm ranges, no matter how it's expressed. Ya know how I know that? The constant reference to rpM. If that "M" is there, then we are talking about power, a measurement over time. You can build your motor to put the power where ever you want it in the rpm band and arguing about whether it's torque or HP is just silly. You know, mathematics being what they are.

[Tommy]

We engineering types can never resist a good HP versus torque thread even after the issue is long resolved. No one in our everyday lives will dare to bring up the topic in our presence for fear of a long winded, jargon laced reply that leaves ordinary people glassy eyed. So when someone on the web happens to bring it up, we dust off that part of our brains that's been dormant for decades and jump in with our favorite explanation. .... I can hardly wait for someone to do it again next year.

[Cobra #3170]

Originally Posted by lovehamr

But that higher torque only matters if it's measured over time, which means its power. No matter how you cut, slice, chop, filet, churn or mix it, if you measure it over time - its power performing work. Changing the gear ratio only changes the apparent rpm/speed in which the work happens.

Nearly everyone here is actually talking about POWER in certain rpm ranges, no matter how it's expressed. Ya know how I know that? The constant reference to rpM. If that "M" is there, then we are talking about power, a measurement over time. You can build your motor to put the power where ever you want it in the rpm band and arguing about whether it's torque or HP is just silly. You know, mathematics being what they are.

Great explanation!

[RET_COP]

Ok Ok I give - I want the POWER [without breaking the bank account]
am I on the right track now.