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| Getting
The Most Out Of Your RC Car Temperature Gun |
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1.
Tune Your Ttires To The Track.
A tire rated for hotter temperatures will resist
breaking down or "shredding" on asphalt
that's hot enough to fry an egg on but will be too
hard to run on a cold track because it won't be
able to generate enough grip. On the other hand,
a cold rated tire (usually soft and sticky) might
last only one run on a hot track, slipping and sliding
around as it wears away to a nub. You can use your
temp gun to find out the track temp before your
run, and this will ensure that you choose the appropriate
tires. Keep in mind that on-road track temps change
throughout the day, so the tires that you used in
your midday qualifier might not work as well in
the late afternoon main event.
2. Temperature Tune Your Motor Gearing.
Over geaing your motor can do some serious damage.
Not only can you burn up your brushes and commutator,
but you can also damage your magnets. Brushes can
be replaced, and you can skim a comm back to top
performance, but magnets are another story: it is
pretty hard to restore a strong field to a magnet
that has been damaged by overheating. Slightly over
gearing your car may not do any long term damage
by overheating, but your motor might feel soft in
the closing minutes of a race event if there is
plenty of battery juice left. Take a few seconds
to check your motor temp after a hard practice run,
to get a good baseline temp. Then, after your motor
has completely cooled, do another run with it geared
a bit taller, and so on, until the motor temp is
drastically higher than on its previous run. Then
back off on the gearing a bit, but make sure that
you can still reach top speed before the end of
the longest straight. Remember that different motors
run best at different temperatures. Experiment and
find out what is best for the motor your running.
3. Check Your Batteries.
If you have a battery pack that is starting to lose
its punch you might have a cell that is going bad.
The faulty cell can be picked from the line of suspects
by checking their temperatures. A bad cell will
get hotter because of a build up of internal resistance;
when it just can't put out juice at the same rate
as the others, the result is heat. if you find that
one cell is hotter than the rest at the end of a
run, even by just a few degrees, it may be time
to send it to the battery recycling bin. Your pack
should be warm at the end of its charge. Check out
the our Battery FAQ page
for a guide charging temps.
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