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Old 01-30-2007, 07:59 AM   #1
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Default ARE COOLING FANS WORTH IT?

i know that heat is a magnets worst enemy and that's what our motors are mainly made of but being that fans cool the motor approximately 30-40 degrees. the added weight must heat the motor more than without because it has to push more weight. what i'm trying to get at is do you get more horsepower out of a 30-40 degrees cooler motor with the extra weight?
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Old 01-30-2007, 08:02 AM   #2
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Some people swear by them, others do well without one. I used to insist on having one in my car, but by chance as its not so spacious to install one on the new car I have I will be try without and see how I get on

If your gearing is out I guess it could help too lol
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Old 01-30-2007, 08:05 AM   #3
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Try running a 7 turn with IB 4200 cells outside on a day that the temp reaches nearly 100 degrees and tell me if you need a fan on your motor. Our motors and batteries are more powerful than ever before and it is becoming a common occurance for motor wires to become un-soldered during a race. The added weight is minimal and well worth it. At the recent Nats, the cars on the starting grid sounded like a hornets nest. I thought for sure that Paul L's car was going to hover.
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Old 01-30-2007, 08:18 AM   #4
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Aim a fan at the endbell and then look at the brushes and comm after a run and you will be able to see how much better it is. Brushes and comm last much longer with a fan on them.
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Old 01-30-2007, 08:20 AM   #5
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That being the case then, would you say its still important in stock,27 turn?
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Old 01-30-2007, 08:22 AM   #6
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so true, so true
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Old 01-30-2007, 08:25 AM   #7
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stock and 19t not a much but for mod it is manditory if you want to keep those motor wires attached
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Old 01-30-2007, 08:26 AM   #8
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all for the love of bling.
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Old 01-30-2007, 08:35 AM   #9
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I only race 27t mostly (sometimes 19t) so ive never seen anything different. No doubt with the speed of mod it does make a lot of heat become apparent in a closed shell
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Old 01-30-2007, 08:39 AM   #10
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A lot of it has to do with how hard you are on your motor. If you are driving like a maniac, stabbing the throttle and using a lot of push brake, or even worse drag brake, to help you get around turns (instead of with changing car set-up), you will need a fan.

That said, most cars are underweight anyway, so adding a fan penalizes you in no way. I personally do not run a fan on my motor and just started using one on my speedo.
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Old 01-30-2007, 09:38 AM   #11
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I suggest using a fan to save the brushes. you can "cheat" on the gearing a little bit to get a little more speed out of the car when the track demands for it and in the long run it does the magnets some good. Fan on the endbell is always a good idea for me (19t) runner
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Old 01-30-2007, 10:00 AM   #12
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i've used the team tamale fan mounts (using 2 fans) and it made a world of difference. i run only stock and i really liked them.

now i'm onto brushless!

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Old 01-30-2007, 10:03 AM   #13
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Quote:
Originally Posted by tc3team
That being the case then, would you say its still important in stock,27 turn?
I would say it is less important but I still run them on those motors because it cuts down on maintenance and you will see less fade toward the end of a run.
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Old 01-30-2007, 10:13 AM   #14
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i run 27T stock in my cyclone and even with the fan the car is still underweight. i'll never go without a fan again.
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Old 01-30-2007, 10:14 AM   #15
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Quote:
Originally Posted by Jack Smash
I would say it is less important but I still run them on those motors because it cuts down on maintenance and you will see less fade toward the end of a run.
Ok, I will be trying with and without in time, maybe i'll see a difference! I guess ambient temperatures can also play their part.
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