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JTEC RACING & FUN > General Category > Basher Mods > Understanding “KV” rating
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CRAIGSASYLUM
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« on: August 26, 2009, 11:12:18 PM »
“Kv”  is how  many times the motor turns for every  1 volt you put to it

I will use mamba motor
46/57 are rated for 3s
77 is only rated for 2s

4600kv on 3s lipo 12.6v = 57960 rpm
5700kv on 3s lipo 12.6v = 71820 rpm
7700kv on 2s lipo 8.4v =  64680 rpm
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CRAIGSASYLUM
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« Reply #1 on: August 28, 2009, 09:29:01 PM »
i found the a vid

http://www.youtube.com/watch?v=SpcgGd9GJ8A&feature=channel_page
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STOCK SLASH
MOD SLASH (4800kv on 4s)
DEWALT E-REVO
1/16 E-REVO
20mph power wheels
tmail57
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« Reply #2 on: October 16, 2009, 08:22:51 AM »
7700kv on 2s lipo 8.4v =  64680 rpm  Huh

Isn't 2s lipo - 7.4 HuhHuh  Grin
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CRAIGSASYLUM
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« Reply #3 on: October 19, 2009, 04:21:30 PM »
2s lipo comes off the charge at 8.4v
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STOCK SLASH
MOD SLASH (4800kv on 4s)
DEWALT E-REVO
1/16 E-REVO
20mph power wheels
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