Quote:
Originally Posted by 45Auto
Our dual 775's running through cim-u-laters freespin our 8" wheel up to just over 3600 RPM, as measured with a photo-tach.
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free speed of 775-12 at 12 volts is 7300 rpm. CIM-U-LATOR gear reduction is 2.7:1
7300/2.7 =
2704 rpm So you can't be using 775-12.
free speed of 775-18 at 12 volts is 13000 rpm
13000/2.7 =
4800 rpm
3600/4800 = 75%
775-18 at 12 volts at 75% speed is drawing 23 amps, and cranking out over 200 watts. And you say you have 2 of them. Something doesn't add up.
"Trying to teach a nerd to be sensitive to girls is like trying to teach a dog Jamacian, and expect it to talk back" - Hansen302 [more] 
14-02-2012, 09:48
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