R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 12-21-2008, 04:32 PM   #1
Tech Rookie
 
Join Date: Dec 2008
Posts: 13
Default diy motor mod

bit of help plz

im new to this rc game, but im on my 2nd car, have been playing with a 19t mod motor, 19t tuned motor and have just built a 15t mod motor with a ansmann armature speeds not to bad but it runs very hot is there any thing a can do???

thanks iceo
iceo is offline   Reply With Quote
Old 12-21-2008, 04:42 PM   #2
Tech Master
 
Join Date: Apr 2008
Location: Christchurch, NZ
Posts: 1,063
Default

Timing and gearing are the 2 main areas to look for if it's getting very hot. Also, mod motor's will get hot regardles if you are bashing with them for 15 minutes continuous.
JR007 is offline   Reply With Quote
Old 12-21-2008, 04:50 PM   #3
Tech Rookie
 
Join Date: Dec 2008
Posts: 13
Default

gearing is 19 pinon 64 spar, 2 min max before the thremo kills esc
iceo is offline   Reply With Quote
Old 12-21-2008, 07:17 PM   #4
Tech Master
 
Join Date: Apr 2008
Location: Christchurch, NZ
Posts: 1,063
Default

What type of ESC, and what type of car?

Another thing I jsut noticed, Annsman, not exactly high-performance, so that could be part of the problem...
JR007 is offline   Reply With Quote
Old 12-22-2008, 12:36 AM   #5
Tech Rookie
 
Join Date: Dec 2008
Posts: 13
Default

its a dynamite tazer 15t esc, ansmann royal flash the can is from a 19t and the armature is out of a ansmann clash 15t
iceo is offline   Reply With Quote
Old 12-22-2008, 03:50 AM   #6
Tech Champion
 
tc3team's Avatar
 
Join Date: Mar 2006
Location: UK
Posts: 6,151
Default

+1 on quality Vs price...

The Ansmaan are a rather budget motor, so the armature may not handle current flow as well as a "good" 19t or modified motor, they are made with price being the main factor.

All you can do is keep the commutator as clean as possible, and re lube the bearings frequently. Use brake cleaner (watch the paint on the can or it may peel off) on the bearings and relube with 1, (yes only one) small drop of light oil.

any more will just leak out and cause more problems with attracting dirt to stick onto the oil and foul the bearing...
__________________
Fusion Hobbies / www.horshamrc.org

The wife stops me being sane and the r/c stops me from going insane....
tc3team is offline   Reply With Quote
Old 12-22-2008, 04:28 AM   #7
Tech Rookie
 
Join Date: Dec 2008
Posts: 13
Default

ok thanks , what is a good 19t mod, as it stands i get about 4 to 5 min run on a 3700 batt. have been looking a a fire ball but they do nt seem much better than what im all ready running
iceo is offline   Reply With Quote
Old 12-22-2008, 04:45 AM   #8
Tech Champion
 
tc3team's Avatar
 
Join Date: Mar 2006
Location: UK
Posts: 6,151
Default

Quote:
Originally Posted by iceo View Post
ok thanks , what is a good 19t mod, as it stands i get about 4 to 5 min run on a 3700 batt. have been looking a a fire ball but they do nt seem much better than what im all ready running
Im from the UK, and have used the Checkpoint "money" motor which is 19t, has plenty of speed to it and works fine as long as you use the harder brush on it, as the softer brushes supplied with the motor burn up too quickly (they are more suited to 4 cell cars- 1/12th scale).

hope that helps
__________________
Fusion Hobbies / www.horshamrc.org

The wife stops me being sane and the r/c stops me from going insane....
tc3team is offline   Reply With Quote
Old 12-22-2008, 05:28 AM   #9
Tech Rookie
 
Join Date: Dec 2008
Posts: 13
Default

will it be any good in a 1/10th 4wd off road st???
iceo is offline   Reply With Quote
Old 12-22-2008, 07:28 AM   #10
Tech Champion
 
Briguy's Avatar
R/C Tech Elite Subscriber
 
Join Date: Aug 2006
Location: Ottawa , IL
Posts: 8,128
Trader Rating: 125 (100%+)
Send a message via Yahoo to Briguy
Default

What truck do you have ?
__________________
At Your Service Vinyl Works
Royal R/C & Hobby
Leisure Hours Hobby & Raceway
Briguy is offline   Reply With Quote
Old 12-22-2008, 07:36 AM   #11
Tech Rookie
 
Join Date: Dec 2008
Posts: 13
Default

ansmann royal flash with a fixed 19pin/64spar
iceo is offline   Reply With Quote
Old 12-22-2008, 08:01 AM   #12
Tech Champion
 
Briguy's Avatar
R/C Tech Elite Subscriber
 
Join Date: Aug 2006
Location: Ottawa , IL
Posts: 8,128
Trader Rating: 125 (100%+)
Send a message via Yahoo to Briguy
Default

If you can`t change the pinion your gonna run hot no matter what motor you put in there other then the stock that came with it .


Do yourself a favor , save up some money and get a descent truck , you can get a good used one pretty cheap these days .
__________________
At Your Service Vinyl Works
Royal R/C & Hobby
Leisure Hours Hobby & Raceway
Briguy is offline   Reply With Quote
Old 12-22-2008, 08:12 AM   #13
Tech Rookie
 
Join Date: Dec 2008
Posts: 13
Default

the spar can be droped to 62t but i cant find a long shaft pinon, any ideas?
iceo is offline   Reply With Quote
Old 12-22-2008, 12:59 PM   #14
Tech Master
 
Join Date: Apr 2008
Location: Christchurch, NZ
Posts: 1,063
Default

You could try going away from the mod motor. A good 19 Turn Stocker would KILL a cheap 15 turn mod, and your heat issues will reduce considerably. Also, with a stock motor they generally last a lot longer before needing a Comm cut.

Even though your ESC says 15 turn limit, it's not a high performer so a higher turn motor will be a lot easier on it ensuring the ESC lasts you a while.
JR007 is offline   Reply With Quote
Old 12-22-2008, 01:08 PM   #15
Tech Rookie
 
Join Date: Dec 2008
Posts: 13
Default

have you got any thing in mind, as i wouldn't know where to look and what im looking for
iceo is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
CRAWLER'S CORNER Mang Boy Manila Racers 3390 10-26-2017 09:57 AM
JP engines jasoncsc Onroad Nitro Engine Zone 1160 05-10-2017 08:19 AM
DIY Magnet Zapper danjoy25 Australian Racing 24 10-03-2010 11:54 AM
R/C DIY stuff... Make it Yourself and save $$$ !!! kelfo Malaysian R/C Racers 408 01-05-2010 11:20 PM
R/C Stuff Selling Kenneth Tan Singapore R/C Racers 45728 09-09-2009 08:19 AM
Advices on tb01 blixelX Electric On-Road 105 08-05-2003 01:21 AM



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 06:41 PM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net