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Old 06-29-2004, 09:40 PM   #1
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Default fans for motors before races

why do people ahve fans over thier motors after and before a race? whats wrong with letting it cool down on its own? and what would putting a fan over a room temp(cooled down) motor do? i dont think itll lower the temp...or am i wrong?
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Old 06-29-2004, 09:42 PM   #2
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Cold magnets are stronger, and a cooler motor to start will be stronger and won't get as hot as quickly, providing more power.
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Old 06-29-2004, 10:17 PM   #3
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Not all of us have lotsa motor rolling around in our tool box. So we'll get that one gem to cooled pronto for the next run. I would seal it in a plastic bag and throw it in the cooler box. The motor gets cooled real mighty fast. So far so good.....no problemo...I'll just just leave it in the cooler until the next qualifying run..... more power man!
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Old 06-29-2004, 10:24 PM   #4
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Some people will use ice before the run.
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Old 06-29-2004, 10:36 PM   #5
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Quote:
whats wrong with letting it cool down on its own?
Nothing, but a fan does the job better and faster. They also come in handy for cooling down batteries and keeping your charger cool.
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Old 06-29-2004, 11:58 PM   #6
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Quote:
Originally posted by Desolas
They also come in handy for cooling down batteries
Using a fan to cool batteries is a different school of thought.
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Old 06-30-2004, 12:09 AM   #7
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i place ice on my motors to cool it down to get ready for the next heat. one more thing to consider is that i'd like to start the heat with a cold motor and end the heat warm rather than to start warm and end up with a "toasty" motor.
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Old 06-30-2004, 03:03 AM   #8
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why dont you racers just use a small 60mm computer fan that runs on 0-12v?
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Old 06-30-2004, 03:03 AM   #9
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why dont you racers just use a small 60mm computer fan that runs on 0-12v? and during the race it will keep the motor cool?
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Old 06-30-2004, 03:21 AM   #10
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Quote:
Originally posted by kh15
why dont you racers just use a small 60mm computer fan that runs on 0-12v? and during the race it will keep the motor cool?
How R.U. going to fit that fan into ur car ?
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Old 06-30-2004, 03:47 AM   #11
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Quote:
Originally posted by kh15
why dont you racers just use a small 60mm computer fan that runs on 0-12v? and during the race it will keep the motor cool?

because a 12 volt fan running on 7.2 volt is next to useless....


SSSSSLLLLLLLLLLOOOOOOOOOOOOWWWWWWWWWW

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Old 06-30-2004, 10:16 AM   #12
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Quote:
Originally posted by rough512
because a 12 volt fan running on 7.2 volt is next to useless....


SSSSSLLLLLLLLLLOOOOOOOOOOOOWWWWWWWWWW

definately slow...

you'll need a 5v fan and the size of about 30-40mm and 5-10mm deep.

check out the 5v fans at:
http://www.allelectronics.com/cgi-bi...100&type=store
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Old 06-30-2004, 12:01 PM   #13
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weel i know that some use ice....and i can understand using one after a race but how is it going to lower the temp of the motor before? like its just blowing normal air....not cold air to it...or it odes lower the temp??

thanks for the replies anyways
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Old 07-01-2004, 09:09 PM   #14
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the guys in japan use an air scoop. its attached between side of the chassis and the body. its function is to redirect air to the motor.
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Old 07-13-2004, 03:14 PM   #15
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Quote:
Originally posted by S-T-R-l-K-E-R
the guys in japan use an air scoop. its attached between side of the chassis and the body. its function is to redirect air to the motor.
Do you know where I could get pics of this? Sounds like a decent idea and may want to replicate it. Thanks
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