How does KV rated motor scale compare to ones measured in turns?

[BeachBuggyPhil]

I have a B4.1 RTR with a 3300KV motor and I see that Reedy do 3900KV, 4900KV and 6100KV.
I'm curious what these motors would be if rated in turns?
Also what is the 3300KV rated at?
Thank you
Phil
(So much to learn!)
:cry:

[BeachBuggyPhil]

OK, so i just found on wiki that the voltage used times by the KV rating gives the revs that the motor will turn to. Higher KV, higher motor speed.
Thing is not all the motor manufactures list the KV or rev limit to their motors so I don't know how to compare the Reedy ones to other motors.
Is a 6100KV motor like a 5.5 or a 7.5? Grrrrr
Anyone :)

[sosidge]

You can't compare the two.

The KV rating is a measure of the motors unloaded RPMs per volt.

The number of turns is related to the way the motor is actually constructed.

Depending on the way a motor is built it can have very different KV even with the same number of turns.

You also need to bear in mind that KV is not an indication of power. Some motors may have high RPM but relatively low power.

At a very rough guess the 3300KV motor in the RTR will be close to a 13.5 sensored brushed. The RTR comes with a sensorless system which is not really comparable to the sensored racing systems and probably isn't built to the BRCA rules for motor construction (if the race is being run to them).

[bigred5765]

http://www.teamnovak.com/products/brushless/motor_spec_chart.htm

[BeachBuggyPhil]

Brilliant, bookmarked.
Thank you
I think I'll go for the 4900KV then!
:)

[BeachBuggyPhil]

Having looked further down that list it seems they do vary depending on the model but it gives me some sort of idea. Cheers