Originally Posted by
Cammy1230
Hi,
First of the car at this stage is just going to be used for general bashing and running around. What you are saying about weight makes total sense, even though it will half my run time. What I'm having trouble with is finding out what motor needs what voltage, amperage ect. A 6S 2650mAh lipo weights 430grams, A 3S 5000mAh weights 412grams. What voltage to different KV's require, Can a 6000KV motor run on 2S 5000mAh weighing 276grams giving me a RPM of 50400 instead of a 3000KV motor running on 4S 5000mAh weighing 528grams giving me the same RPM of 50400?
Thanks for helping me understand this. Sorry for the noob like questions
You're on the right track here. What you have to be aware of is that all motors have a certain max rating for wattage, amps etc. You need to know those things before setting it up.
Your example of 6000KV versus 3000KV and 2S versus 4S is correct in a vacuum. But there's also motor efficiencies to take into account. A lower KV higher voltage set up is always more efficient than a high KV low voltage. So the 3000KV on 4S will be noticeably faster with more torque than the 6000KV on 2S. The 6000KV will lose more energy through heat than the 3000KV setup.