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Reply to "Anybody regear a Williams 2R Challenger?"

In the flywheel vs no flywheel debate I mentioned a couple of days ago that I would do a coast down comparison between a Maxon coreless (with brushes) no flywheel  vs a Mabuchi 385 with flywheel.  for the test I have both motors adjusted to between 6500 rpm and 6600rpm the Mabuchi was turning about 40rpm faster than the Maxon.  The two motors have different static resistance Maxon 5 ohm and the Mabuchi is 3.8 ohms they require different voltage to acheve the same rpm. The Mabuchi was adjusted to a hair over 7V and the Maxon about one volt more. In the video you can see that both motors running just shy of 6600 rpm the Maxon with no flywheel coast approximately one second longer than the Mabuchi with a flywheel. The Maxon is without a doubt quieter than the Mabuchi in fact the Maxon at 20v is quieter than the Mabuchi at 7v by quite a bit.  It hardly makes more noise at 20v that at 5v. I bought a bunch of these before converting to TMCC for use with Dallee solid state reverse units at 18v. They will not develop full power on the Lionel Drivers that only output 12v

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Last edited by JohnActon

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