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Old 08-04-2008, 04:59 PM   #1
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Default Motor maintenance and gear ratio questions?

What should I do for regular motor maintenaince on a brushed motor,I have a komodo.What kind of brushes ,springs,can you do anything to make a motor faster.I got a 12th scale and need to know to figure out gear ratios,what do I wanna use on a small track,and what to use on a big nitro track?I used a 96/31 on small track seemed good,used a 96/36 on big track it wasnt right ,other guy ran a 88/32,does that seem right??Thanks in advance.
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Old 08-04-2008, 07:01 PM   #2
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Old 08-06-2008, 02:38 PM   #3
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Wow,not all at once.Dont feel like waiting till weekend to ask questions at the track,so I come here ask a simple question and get nothing?Guess no one maintains there motors or knows how to figure out the correct gear ratio for a track,thanks again,Tim.
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Old 08-06-2008, 02:45 PM   #4
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I think the problem is basically everyone has moved to brushless.

But as far as maintenance goes give a clean at the end of the meeting and after the 4th meeting or there about I'd get it cut and new brushes.

As for gearing I've never run 12th so don't know gearing for them. But you want to listen to the motor it should top out about 3/4 of the biggest straight.
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Old 08-06-2008, 06:34 PM   #5
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LIke he said clean the can every run or so to make sure there is no fiber in the motor from the carpet( this assumming your running on carpet).

spay out the endbell and make sure it is clean. I found f brush work really good. on a smaller track try some 4499,

Your motor gearing is hard to judge cause we don't run gear ratio, but a roll out which include the diamater of your rear tires. try a 44mm roll out. every can ever KD19 are a bit different. once you find a great roll out for a particular track jot it down. then as your tire get smaller you can adjust. then when you have to place a new set on you can get back to that rollout
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Old 08-06-2008, 07:09 PM   #6
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Someone explained how to figure my gear ratio using tire diameter,could you explain how to get my rollout.
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Old 08-06-2008, 07:34 PM   #7
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Quote:
Originally Posted by intimidator View Post
Someone explained how to figure my gear ratio using tire diameter,could you explain how to get my rollout.
Tim,

Read this, its a bit long but explains things very well. The person who posted (Scottrik)this is a very helpful guy and he gets the credit for this. Lots of good info to read in that thread. You should post 1/12th scale questions in there as thats where most guys look.

Steve


http://www.rctech.net/forum/showthre...12#post4639712
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Old 08-06-2008, 08:06 PM   #8
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Where can I find a chart for rollout online?You know me Corallyman??
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Old 08-06-2008, 10:39 PM   #9
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Quote:
Originally Posted by intimidator View Post
You know me Corallyman??
Nope, never had the pleasure, but you used your name in a previous post #3

Steve
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Old 08-06-2008, 10:43 PM   #10
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Quote:
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Where can I find a chart for rollout online?
Gearchart.com

You can create your own chart using whatever numbers you need. You can do 1/12th as well as sedan. Just look around that site, its also very helpful.

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Old 08-07-2008, 01:04 PM   #11
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Cool thanks alot,exactly what I needed.
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