R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Electric On-Road

Reply
 
Thread Tools Search this Thread
Old 03-09-2014, 07:01 PM   #1
Tech Addict
 
Join Date: Oct 2012
Posts: 584
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   Reply With Quote
Old 03-09-2014, 07:11 PM   #2
Tech Elite
 
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   Reply With Quote
Old 03-09-2014, 08:05 PM   #3
Tech Elite
 
Odin544's Avatar
 
Join Date: Apr 2011
Location: Kennewick, Washington
Posts: 3,166
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.
__________________
Xray - ORCA - Avid RC - MaxFX Paint
TriCitiesRC.com
Odin544 is offline   Reply With Quote
Old 03-09-2014, 10:41 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   Reply With Quote
Old 03-10-2014, 10:26 AM   #5
Tech Elite
 
dan_vector's Avatar
 
Join Date: Oct 2013
Posts: 3,928
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.
__________________
Serpent Viper 977e EVO2, Serpent Viper 988 GP, Serpent Project 4x, Serpent 811T-TE Truggy, Serpent 811e 2.1, Serpent SRX2-MH, Serpent SRX-2 RM, Serpent SRX-4, Serpent F110-SF2, Serpent F180, Serpent 748 Natrix WC, Serpent Cobra GT 3.1, Serpent SRX8, Serpent S811 2.2, Baja 5B Flux, Atomic AMZ 1/27th, Schumacher GT12 SS.
Sanwa, Ielasi Tuned Novarossi Racing Engines, Tekin, Hobbywing, Muchmore.
dan_vector is offline   Reply With Quote
Old 03-10-2014, 10:35 AM   #6
Tech Addict
 
Join Date: Oct 2012
Posts: 584
Default

Quote:
Originally Posted by dan_vector View Post
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   Reply With Quote
Old 03-10-2014, 10:50 AM   #7
Tech Elite
 
theproffesor's Avatar
 
Join Date: Feb 2005
Location: Lugoff SC
Posts: 2,836
Trader Rating: 58 (100%+)
Default

Get an r1 fan or a superior hobbies F5. Bothbof those work great.
__________________
The brighter the picture, the darker the negative. USVTA member #112
theproffesor is offline   Reply With Quote
Old 03-10-2014, 10:52 AM   #8
Tech Champion
 
SteveM's Avatar
 
Join Date: Aug 2001
Location: Ottawa, Ontario, CANADA
Posts: 6,295
Trader Rating: 142 (100%+)
Default

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

Last edited by SteveM; 12-24-2015 at 08:57 AM.
SteveM is offline   Reply With Quote
Old 03-11-2014, 11:13 AM   #9
Tech Regular
 
Conrad's Avatar
 
Join Date: Jun 2005
Location: Scotland
Posts: 473
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.
__________________
Swith Racing [www.swithracing.co.uk]
Conrad is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

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



All times are GMT -7. It is currently 02:01 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net