I am running a ADC AC4-4002 similar to this
http://www.evparts.com/prod-MT2112.htm. The only time I have any heating
issues is if we get enough snow for me to drag the kids around the cul-de-sac
on a sled. Then I am pulling sustained amps at very low RPMs. It's easy to
fix though. I just make the kids scoop up an armful of snow and pack it on the
motor after their ride :-)
How much does your motor weigh? You can tell alot about how much sustained
power a motor can handle by its weight. The more copper there is the more you
can abuse it. Mine is in the 50 pound range.
damon> Date: Fri, 8 Feb 2008 21:26:41 -0500> From: [EMAIL PROTECTED]> To:
[email protected]> Subject: Re: [ElectricMotorcycles] bmw
conversion update - update> > I was originally going to use an ET drive motor,
but the curve only > shows it as 1.4 HP, and it is shunt wound. The snowblower
motor is rated > on it's curve as 2.5HP and it is fundamentally as series
motor, so I > went with it. What motor are you using Damon? And do you have >
performance curves for it? I plotted (correctly I think) curves for an > Etek
on top of the curves for mine and mine actually looked a bit > better, but I
may be missing something. I guess I really need to get it > out on a nice big
flat area and try to run it up.> > When 'empty' it pushed easily. There may be
a bit of disc brake rub on > the front, but I think it's minor.> > I really
wish I had that 1.5:1 transmission ratio I missed. I'd gladly > give up top end
for a solid low end start up.> > - steve> > damon henry wrote:> > It really is
a balance between acceleration and top speed. Your > > figures don't sound that
much different than my motorcycle. Mine > > won't even move without pulling 100
battery amps to get it started, > > and I top out at about 60 mph. I can
maintain 40 mph pulling about > > 100 battery amps. That's at 54 volts with a
14 to 41 gear ratio. > > Accelretion is fine, although a bit slow for a
motorcycle, more like > > an econocar.> > > > If I were you I would get some
more data before deciding you need to > > make a change. Just be careful not to
overheat your motor. If it is > > cooled by an internal fan, running it faster
will also help keep it > > cooler, so maybe you need to get it out and run it
at a higher speed. > > I am not familiar with the motor you are using. Is it
the drive motor > > from an electrak? If so, it seems like it would be decent
choice but > > I really don't know.> > > > How easy is your motorcycle to push?
Getting it to roll real well can > > make a big difference.> > > > damon> >
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