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-   -   diy motor mod (https://www.rctech.net/forum/electric-off-road/261631-diy-motor-mod.html)

iceo 12-21-2008 03:32 PM

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

JR007 12-21-2008 03:42 PM

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.

iceo 12-21-2008 03:50 PM

gearing is 19 pinon 64 spar, 2 min max before the thremo kills esc

JR007 12-21-2008 06:17 PM

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...

iceo 12-21-2008 11:36 PM

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

tc3team 12-22-2008 02:50 AM

+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...

iceo 12-22-2008 03:28 AM

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

tc3team 12-22-2008 03:45 AM


Originally Posted by iceo (Post 5196303)
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 :)

iceo 12-22-2008 04:28 AM

will it be any good in a 1/10th 4wd off road st???

Briguy 12-22-2008 06:28 AM

What truck do you have ?

iceo 12-22-2008 06:36 AM

ansmann royal flash with a fixed 19pin/64spar

Briguy 12-22-2008 07:01 AM

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 .

iceo 12-22-2008 07:12 AM

the spar can be droped to 62t but i cant find a long shaft pinon, any ideas?

JR007 12-22-2008 11:59 AM

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.

iceo 12-22-2008 12:08 PM

have you got any thing in mind, as i wouldn't know where to look and what im looking for


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