Academy Racing (MRC) Support Forum Discuss all of the Academy Racing (MRC) product line in this forum.

959 fan mod complete!

Reply
Old 02-14-2009, 09:22 PM
  #1
fastmaxxcooper
Thread Starter
 
Join Date: Jan 2005
Location: Lisbon, CT
Posts: 129
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default 959 fan mod complete!

i was sick of all the overheating so i finally got around to setting up a computer fan. i picked up a 1.5" fan for $7 and some resistors and now the charger works beautiful!
I got the idea from this page here: http://www.jeff-z.com/rcstuff/superb...uperbrain.html but i didn't like the location so i picked a new one.

i have to fix my other 959 though. when i hook up batteries to it, it only reads 5.00v??? i'm not sure what causes that yet. maybe someone from mrc will grace me with a schematic to look over.


i didn't have a 100 ohm resistor so i hooked up five 500 ohm resistors in parallel.



i've been charging 7 3300mah and 4300mah batteries back to back and the charger doesn't get hot at all.
fastmaxxcooper is offline  
Reply With Quote
Old 02-15-2009, 02:57 PM
  #2
guver
 
Join Date: Mar 2003
Location: LaGrange, OH
Posts: 14,857
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: 959 fan mod complete!

Nice job. What are the resistors for in this app?
guver is offline  
Reply With Quote
Old 02-15-2009, 05:31 PM
  #3
GreenRacer
 
GreenRacer's Avatar
 
Join Date: Jul 2005
Location: , TX
Posts: 595
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: 959 fan mod complete!


Quote:
ORIGINAL: guver

Nice job. What are the resistors for in this app?
The resistor steps down the voltage from 20v to 12v which is what the fan is rated for. I did this mod to my 959 a few years ago and it does work really well!
GreenRacer is offline  
Reply With Quote
Old 02-17-2009, 01:10 PM
  #4
Y2KGTP
 
Join Date: Dec 2003
Location: Deltona, FL
Posts: 214
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: 959 fan mod complete!

Looks nice. I have 2 959's that I prob would like to do a similar mod to...but I also thought making a small case to fit both chargers, and use a
couple computer fans on the box itself. One for intake, and one for exhaust. Thought it might clean up the wiring a bit....

You know, flush the charging connectors (Deans) in the front of the box, and just have 1 power cord to deal with in the back....
Y2KGTP is offline  
Reply With Quote
Old 02-18-2009, 06:16 AM
  #5
fastmaxxcooper
Thread Starter
 
Join Date: Jan 2005
Location: Lisbon, CT
Posts: 129
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: 959 fan mod complete!

that'd be a pretty good idea. the cords to get clumsy. i picked up a couple of 100 ohm larger watt resistors so i'll be swapping one of those in and i have a second for the 3rd 959 i bought! more mods!
fastmaxxcooper is offline  
Reply With Quote
Old 02-26-2009, 06:30 PM
  #6
Y2KGTP
 
Join Date: Dec 2003
Location: Deltona, FL
Posts: 214
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: 959 fan mod complete!

Just to clarify the locations here....I have a couple 959's I picked up and want to put the fans on the side, as these are going to be mounted in a toolbox drawer, and I won't have too much top clearance when they are put away for transport when not in use.




I was going to remove the tray dividers to have room for the 2 chargers. Likely will just hot glue in place to the bottom tray. I was also planning on shorting the power cords to about 12" or so, and plug into a power strip I was going to mount to the back of the box.

Y2KGTP is offline  
Reply With Quote
Reply


Thread Tools
Search this Thread
Display Modes

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



All times are GMT -8. The time now is 07:33 PM.