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Old 01-19-2005, 08:47 AM   #1
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Default Motor Cooling Fans



I see more and more racers cooling down their motors with 25-40mm 5V fans. I was wondering if anybody has any wiring tips? Are some using dedicated micro packs or plugging straight into the receiver?

Experience wise, would it be benificial for stock & 19T?

http://www.allelectronics.com/cgi-bi...220&type=store

Thanks!
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Old 01-19-2005, 09:17 AM   #2
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the easiest route would be to plug in directly to the receiver. i stole the 5v fan from my trinity real time 2 and soldered on a receiver plug harness. im not sure if it drastically reduces motor temperatures during a run (i wasnt able to measure motor temp before and after installing a fan.)
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Old 01-19-2005, 11:04 AM   #3
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I have noticed a difference in performance after I installed a fan, especially in stock. It allowed me to go up a tooth or two and not have the motor go flat at the end of the race. As far as wiring goes connecting to the receiver is probably the easiest although you could connect directly to your batteries. Allecelectronics.com is a good source for fans. I think I paid $2.00 for mine. They also sell connectors so you can wire to the receiver. Iíll try and post a picture of the fan on my Xray tonight.

Last edited by rceric; 01-19-2005 at 11:09 AM.
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Old 01-19-2005, 11:10 AM   #4
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We spend BIG bucks on batteries with great numbers and then we hook up 2 fans and digital servos to them with the hopes of going faster. Don't they draw to much juice and degrade performance ?
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Old 01-19-2005, 11:29 AM   #5
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The fan Iím using draws .09 amps, which is insignificant compared to current the motor is drawing.
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Old 01-19-2005, 11:55 AM   #6
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would i be able to hook two fans into one plug and plug it into the reciver?
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Old 01-19-2005, 12:22 PM   #7
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yeah, they make a splitter, you might check in the aircraft section at your LHS or tower hobbies... Y-Harness I believe is what you will find it under...
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Old 01-19-2005, 01:01 PM   #8
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I find that on my XRAY a fan reduces the temperature between 20* and 30* F, depending on the motor. Another racer with a TC4 and dual fans claims up to 40*F. I can definitely feel the difference with the finger test.
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Old 01-19-2005, 01:26 PM   #9
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Thanks for your input and new questions.

So is the right type of fan to run the 5Vs and what size do you guys recommend?
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Old 01-19-2005, 01:35 PM   #10
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5V is what you want. As for size check Associated's website. They sell a small fans that is perfect. It works in the Team Tamale fanmount for the Xray. I'm sure they will have the spec for it on there so you can go find it on a electronics website.
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Old 01-19-2005, 01:48 PM   #11
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team trinity makes a great fan. it mounts on top of the endbell
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Old 01-19-2005, 01:51 PM   #12
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I'm using a 40mm fan and it works really well.

http://www.allelectronics.com/cgi-bi...189&type=store
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Old 01-19-2005, 02:00 PM   #13
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The trinity fan is nice - if you have room for it I know its a tight fit for my electronics in my Tamiya EvoIII - So I'm thinking my fan is gonna get mounted on the top deck right over the motor and speedo

I'm running a 40mm fan - this was borrowed out of a Trinity B4 stand with fan...I swapped fans
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Old 01-19-2005, 02:24 PM   #14
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That car in the pic at the beginning of this thread has interesting wiring. Is it just me or does it have 2 switches?
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Old 01-19-2005, 02:27 PM   #15
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Quote:
Originally posted by X2
That car in the pic at the beginning of this thread has interesting wiring. Is it just me or does it have 2 switches?
It does. One is for the ESC and the second is wired to the fans so they can be turned on and off.
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