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03-25-2011, 09:17 AM
| #1 |
| ~THE SCALE SHOP~ Join Date: Apr 2006 Location: KILLEEN TX
Posts: 10,056
|  if you need this....
...your doing something wrong  came across this on ebay. sheesh, heat sink + 1 fan on the can, and one fan on the endbell http://cgi.ebay.com/ws/eBayISAPI.dll...m=290495336102  |
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03-25-2011, 09:18 AM
| #2 |
| Rock Crawler Join Date: Jan 2009 Location: crawlorado
Posts: 555
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i could see it for non crawling purposes....probably be great for my puller or something.....but yeah if your crawler needs it....your doing something wrong lol
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03-25-2011, 09:59 AM
| #3 |
| ~THE SCALE SHOP~ Join Date: Apr 2006 Location: KILLEEN TX
Posts: 10,056
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yeah i was refering to any rc in general.
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03-25-2011, 10:00 AM
| #4 |
| I wanna be Dave Join Date: Oct 2008 Location: I miss Rowdy
Posts: 2,238
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I ran two fans on my Novak 21.5 in my VTA racing car. My motor temps would be over 190* without them. I ran a Tekin RS Pro speedo with the boost turned up all the way. My car was fast though. With the fans, temps never got above 160*.
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03-25-2011, 10:02 AM
| #5 |
| Rock Crawler Join Date: Mar 2008 Location: Grand Rapids
Posts: 918
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might be cool on an f off rig
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03-25-2011, 11:24 AM
| #6 |
| I wanna be Dave Join Date: Apr 2007 Location: Arlington, Washington
Posts: 2,303
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These are very common in RC racing.....though some rules only allow one fan. Motors get to extreme temps sometimes, especially on high bite tracks or outdoors in hot weather.... Some idiots use these to compensate for bad gearing, but they rarely save the day..... Certainly nothing is being done wrong.....that's just how racing works. Later EddieO |
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03-25-2011, 12:04 PM
| #7 |
| RCC Addict Join Date: Oct 2008 Location: Tyler, TX
Posts: 1,619
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The only problem I have is that people sometimes don't realize that an improperly fitting heat sink can cause more issues than no heat sink at all. Other than that in certain applications this type setup is necessary.
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03-25-2011, 12:51 PM
| #8 | |
| ~THE SCALE SHOP~ Join Date: Apr 2006 Location: KILLEEN TX
Posts: 10,056
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 it was a huge deal. and when nimhs came out too. so much easier battery care.
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03-25-2011, 04:55 PM
| #9 |
| Quarry Creeper Join Date: May 2010 Location: Plumas county
Posts: 208
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I was always told that a fan on your motor is like a band aid on a broken leg. When you take temps off your motor, that's the can, not the actual wiring. So I think of it like an electric stove top. Just because the water is boiling at 100* doesn't mean the coils red glow is 100*....... but hey, I could be wrong. |
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03-25-2011, 05:00 PM
| #10 | |
| Relaxed !   Join Date: Apr 2009 Location: On the road again !
Posts: 1,324
| Quote:
wow thanks for the info i was looking for 2 of these on my xr10 hopin to keep the bearings cooled off nah J/K why would anyone need this or any type of fan on a motor,esc i can see to help thermal overload but a motor? i mean heatsinks on a air cooled head i see but that's gas/nitro/alchohol etc etc interesting to hear the IMO's | |
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03-25-2011, 05:18 PM
| #11 |
| Quarry Creeper Join Date: May 2010 Location: Plumas county
Posts: 208
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That fan/sink combo looks big..... Maybe people are compensating?
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03-25-2011, 09:16 PM
| #12 |
| RCC Addict Join Date: Oct 2008 Location: Tyler, TX
Posts: 1,619
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If you are compensating for over gearing the a fan is not the solution and the wrong use. However, if you are trying to insure good airflow over your motor then it is fine. I have run fans myself in applications where I didn't have enough natural airflow over the motor.
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03-25-2011, 10:24 PM
| #13 | |
| I wanna be Dave Join Date: Apr 2007 Location: Arlington, Washington
Posts: 2,303
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The fans came on pretty strong as we started hitting the 3800+ mah cells that had voltages of 1.2x+ at 35 amps.....which doesn't sound like a lot, but when you consider GP3300 packs were lucky to see 1.15 at 30 amps.....its a big difference. Voltage=Heat....especially on foam. Not much need for them in offroad, was mostly a Touring Car thing.... Later EddieO Quote:
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03-26-2011, 08:49 AM
| #14 |
| RCC Addict Join Date: Jul 2009 Location: Reno, Nv
Posts: 1,964
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You might need it if your running brushed in a LCC.  |
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03-28-2011, 03:42 PM
| #15 |
| Rock Crawler Join Date: Dec 2009 Location: Beaumont, Tx
Posts: 507
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Lots of people run them in brushless slashes, because the motor is halfway covered up, and SC are heavy for a 1/10 scale racer.
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