Quote:
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Originally Posted by maxxdude1234
What do you mean by shaft power? I'm guessing you mean power output, as opposed to power input. With the same power input, both the 8L and 8XL will have very similar power outputs. This will depend on how efficient either one is. Without specific data it is hard to say which will be more efficeint (on 12 cells) - but personally I would say that the 8L will be more efficient at 30,000rpm than the 8XL at 23,000rpm. The difference will be fairly small though.
I think/hope we are both in agreement now
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Shaft power and power Output are the same in my previous post.
Power input for 8L and 8XL will be the same only if current will be the same, see post above. If that true then we have unique situation, where 8L runs in RPM range pass peak efficiency and 8XL before, but thats not true, because DC motors have close to linear torque curve (current draw) vs voltage, which should put 8XL current draw to lower value then 8L.
Why do you think one motor would be more efficient on 30000 then another at 23000?
Artur
P.S. Lets clean this up in PM and put clear answer for other guys.