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Old 03-16-2012 | 11:03 AM
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SyCo_VeNoM
 
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Default RE: hyper 7 brushless conversion??


ORIGINAL: pzr vr6


ORIGINAL: SyCo_VeNoM

Kv is rpm's per volt
BL motors are generally rated in Kv like 1850Kv, 2200, 4000Kv etc (there are way more than those they were just used as examples)

thanks for that so the kv kinda dictates how many cells i should use?
ie 4000kv motor on 4s lipo would = 75,200 rpm? (do motors spin that fast?)
4000kv motor on 4s would have the magnets fly off

for 1/8th scale use you generally stick around 1850-2350kv.
got a truggy with a 2200kv motor on 4S that is 100% uncontrollable at full throttle.