Question regarding a lepard 4082 1500KV running 4S

[barryaclarke]

I was just following a pro and con discussion regarding a Leopard 4082 1500KV running 6S or 8S. What about the reverse such as running a 4082 1500KV with 4S? This is a unloaded RPM of just over 22,000. If 8S is an extreme, I was wondering if the opposite is true with 4S? This has just peak my curiosity

[carlcisneros]

you can kind of look at it this way; ( I am sure others will chime in)

4S: Volkswagon Beetle
6S: Ford Mustang V8
8S: Chevy Corvette BUT WATCH THE HEAT AND AMP DRAW!!!!

[barryaclarke]

With 8S, you have to watch the heat and amp draw, but what are the disadvantages, other than being a Volkswagon Beetle, is there with the 4S. Is it going to be hard on the ESC. There has to be some reasons or they would not be recommending 25,000 to 30,000 rpm.

[LarrysDrifter]

The 25,000--30,000rpm range is a reliability window so the electronics will last(mostly motor). Some kv's are kind of tailored to a specific voltage in boating. I would think a 1500kv on 4s would be a dog, depending on the size of the hull. Ive had 3 Leopard 1500kv motors and am currently using one in a DF33 on 6s. This is the voltage where this motor shines. Sport running with an Octura X450/3 cut down to a 47mm diameter and no heat issues. The boat has gone 62 mph on gps using 6s1p 5000mAh 40-50c packs. I see no reason to run the motor on 4s or 8s for that matter. 4s would be slow and 8s would be hard on the motor decreasing its life. If you want to run 4s, get a 2200kv.

[carlcisneros]

<<<<<definately

[barryaclarke]

I am not going to run 4S with 1500KV. I was just wondering the reasons "why" when you go above or below 6S. Thanks for the reply as it was never really discussed where as a newbee such as me would understand when moving from gas to electric........