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ARE COOLING FANS WORTH IT?

ARE COOLING FANS WORTH IT?

Old 01-30-2007, 11:31 AM
  #16  
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i can see them making a difference outdoors with high temps but what about indoors on carpet?
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Old 01-30-2007, 11:40 AM
  #17  
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I ran a fan at this last weekends series race and ran an extra tooth on the pinion and came off under my usual temp and threw down an extra .1-.3 of a second off each lap. When it gets down to missing the higher main by milliseconds every little bit helps. Carpet or ashphalt.

A few of us found fans at the LHS on the way to the race and baught them outta fans just to try em out, I won't go back.
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Old 01-30-2007, 12:43 PM
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Alot depends on the ambent air/track temps, here in the desert the summer air is 110F + and track temps can reach 200F. At those temps even those of us running stock need, really need, a fan on the motor.
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Old 01-30-2007, 12:47 PM
  #19  
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With those temps I'd put a fan on each tire too!
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Old 01-30-2007, 02:10 PM
  #20  
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We are only dealing with grams of weight, this is not going to place enough stress on the motor to change the temperature + or - any amount of degrees. If this was true you probably would want to clean or replace your bearings on the entire car to keep the drive train running smooth (a restrictive drive train would cause more strain than a few extra grams from a fan ). The positives out way the negatives.
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Old 01-30-2007, 09:21 PM
  #21  
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What are the best fans to use?
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Old 02-03-2007, 06:54 AM
  #22  
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try the novak fans, I ran into some problems with the 3racing and the integy fans. After I dropped a new CO27 motor into my car I noticed when I put the fan on the can the fans speed slowed considerably. I tested to diffrent fans with this motor and came to the conclusion that maybe these fans have ball bearings and the magnet in the can is pulling at the bearings causing it to slow. i know this sounds odd but it true I showed at least ten people at the track and everyone came to the same conclusion. I previously had no problems with the fan on older motors such as a Reedy Rage, MVP and Spec 19. Go figure
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Old 02-03-2007, 09:33 AM
  #23  
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I race 27 turn indoors on carpet and I'm convinced that my fan helps out with brush and comm wear. It just seems to keep the overall temperature of the motor down a little, which is always a good thing.

I think the reason the fan might slow when on the can is because, in effect the fan is a small motor, and the magnetic field from the motor will interfere with the magnets in the fan.
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Old 02-03-2007, 10:00 AM
  #24  
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I run a 19T and the fan is awesome in keeping my brush wear down. I would say it is one of the more effective addons to a car. Better than any comm drop!
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Old 02-03-2007, 10:05 AM
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Personally I think aside from Modified. A fan is just an attempt to over work (or over gear) A motor. Either way over geared is over geared.
The limitation of the motor is over exceeded hot or cold. But better safe than sorry.
Technically geared perfect? Cooler will be more efficient.
So I guess it would be worth it?
Over all less power fade.
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Old 02-03-2007, 10:19 AM
  #26  
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Originally Posted by UN4RACING
Personally I think aside from Modified. A fan is just an attempt to over work (or over gear) A motor. Either way over geared is over geared.
The limitation of the motor is over exceeded hot or cold. But better safe than sorry.
Technically geared perfect? Cooler will be more efficient.
So I guess it would be worth it?
Over all less power fade.
i agree ,gear the motor correctly and you wont have any problems with heat
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Old 02-03-2007, 10:27 AM
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Thanks marcos, even in mod you get over 140 to go fast you need to go to a faster motor if you know what I mean?
120 to about 150 max is really about the max on any motor I think.
And at 150 thats pushing it.
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Old 02-03-2007, 10:29 AM
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Originally Posted by UN4RACING
Thanks marcos, even in mod you get over 140 to go fast you need to go to a faster motor if you know what I mean?
120 to about 150 max is really about the max on any motor I think.
i have my brushless motor (3.5) and it never gets any hotter than 145 degress, and its plenty fast
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Old 02-03-2007, 10:34 AM
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I've done some serious exsperimenting on the 4300's and I agree. When i gear any motor my goal is 130 and never more than 150. I usally end up around 140. I tend to over gear its like some kind of need to go faster.
Lets just say I've demagnitized a few rotor's.
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Old 02-03-2007, 10:40 AM
  #30  
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MacrosJ - well no crap, brushless is fast! haha
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