Go Back  R/C Tech Forums > General Forums > Electric On-Road
motor heat sinks & fans >

motor heat sinks & fans

Community
Wiki Posts
Search

motor heat sinks & fans

Thread Tools
 
Search this Thread
 
Old 03-09-2014, 06:01 PM
  #1  
Tech Addict
Thread Starter
 
Join Date: Oct 2012
Posts: 738
Default motor heat sinks & fans

ok whats the best...or what works and what doesnt?
should i just run a fan or sink and fan?
how do you okk them up?
any info would be great
TeamThibault is offline  
Old 03-09-2014, 06:11 PM
  #2  
Tech Elite
iTrader: (7)
 
Join Date: Nov 2008
Posts: 2,132
Trader Rating: 7 (100%+)
Default

on my scale spec car i run a fan. on my f1 i do not run either but may start running a heat sink.
dragonracing is offline  
Old 03-09-2014, 07:05 PM
  #3  
Tech Elite
iTrader: (93)
 
Odin544's Avatar
 
Join Date: Apr 2011
Location: Kennewick, Washington
Posts: 3,160
Trader Rating: 93 (100%+)
Default

Heat sinks are not very efficient at transferring heat away from the motor. For TC just put a fan on the chassis or on a mount to the rear of the motor blowing air onto the motor.
Odin544 is offline  
Old 03-09-2014, 09:41 PM
  #4  
Suspended
 
Join Date: Dec 2013
Posts: 82
Default

Both of them are works. Use fans if you want heat spill out quickly, or you can use a heat sink. If your vehicle produce heat quick and large, get a decent fan will be a better choice.
davidwills is offline  
Old 03-10-2014, 09:26 AM
  #5  
Tech Elite
iTrader: (27)
 
dan_vector's Avatar
 
Join Date: Oct 2013
Posts: 4,332
Trader Rating: 27 (100%+)
Default

Just a 40mm fan mounted behind the motor blowing air onto the motor with a gap of 5-10mm. I use Ride servo tape to stick the fan down to the chassis as it's really strong. Heat sinks are not needed with today's brushless motors.
dan_vector is offline  
Old 03-10-2014, 09:35 AM
  #6  
Tech Addict
Thread Starter
 
Join Date: Oct 2012
Posts: 738
Default

Originally Posted by dan_vector
Just a 40mm fan mounted behind the motor blowing air onto the motor with a gap of 5-10mm. I use Ride servo tape to stick the fan down to the chassis as it's really strong. Heat sinks are not needed with today's brushless motors.
we still run silver cans in our gt class and was thinking about them as well.
so for 17.5 just a fan would work?
TeamThibault is offline  
Old 03-10-2014, 09:50 AM
  #7  
Tech Elite
iTrader: (66)
 
theproffesor's Avatar
 
Join Date: Feb 2005
Location: Lugoff SC
Posts: 3,693
Trader Rating: 66 (100%+)
Default

Get an r1 fan or a superior hobbies F5. Bothbof those work great.
theproffesor is offline  
Old 03-10-2014, 09:52 AM
  #8  
Tech Champion
iTrader: (165)
 
SteveM's Avatar
 
Join Date: Aug 2001
Location: CANADA
Posts: 7,778
Trader Rating: 165 (100%+)
Default

I have a heat sink and a fan on my Mi5 sedan.

Last edited by SteveM; 12-24-2015 at 07:57 AM.
SteveM is offline  
Old 03-11-2014, 10:13 AM
  #9  
Tech Addict
iTrader: (3)
 
Conrad's Avatar
 
Join Date: Jun 2005
Location: Scotland
Posts: 550
Trader Rating: 3 (100%+)
Default

If the fan is on the rear of the motor it should be blowing away from the motor, extraction is far more effecient. The contact between the motor and heatsink will always be bad compared to PC heatsinks but the heat will still move through to the heatsink, the heatsink greatly increases your surface area which is the part you really want to cool to see big drops in temp. The Nosram is one of the best designs on the market but it ain't cheap.
Conrad is offline  

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.