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myndseye
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02.13.2008, 01:38 PM

Quote:
Originally Posted by BrianG View Post
Actually, it's all about the torque IMO. The formula is:

torque (in ft-lbs) = 1352 / kv X amps / 192

As you can see, increasing amperage and/or reducing kv increases torque. So, for a given amperage, the lower kv motor will have more torque.

FYI: you can also calculate HP without voltage and current:

Mechanical HP = torque X rpm / 5252
Would not torque and horsepower be equivalent in a rotating system? As torque is the turning force to overcome a load in a rotating system, so is horsepower a pulling force to overcome a load in a linear one. Since someone many years ago started using the value of horsepower to describe the force in a rotating system where torque should have been the standard, I don't think that in this instance they can be separated. I can gurantee that a vehicle with no rated horsepower, also generates no torque as well.

Last edited by myndseye; 02.13.2008 at 01:41 PM.
   
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