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01-22-2010, 09:37 AM
| #1 |
| Rock Stacker Join Date: Mar 2009 Location: Houston
Posts: 74
|  Rear power issue?
Quick question guys, my front motor seems to be a little stonger than rear motor. What I mean is that when on an incline the front wheels seem to do most of the work climbing than the rear does. The rear seems to lag the same power or speed the front has. Thr front motor is brand new and the rear is used. Is this a brush problem? Do u guys think I need to change my brushes on rear motor in order for both to have same power? |
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01-22-2010, 09:54 AM
| #2 |
| I wanna be Dave Join Date: Sep 2005 Location: Houston, TX
Posts: 16,952
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It could be that it simply needs a rebuild. Even with perfect motors, you'll experience rear motor stall. It's just how it is with a dual motor setup....
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01-22-2010, 10:08 AM
| #3 |
| I wanna be Dave Join Date: Jan 2009 Location: laying low
Posts: 2,508
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are you sure it's not plain old clod stall your experiencing?? any time you transfer the whole rigs weight to the back axle like on all climbs it takes more power to get the loaded rear axle motor moving vs getting the fully unloaded front axle motor moving.. Last edited by 53 willys; 01-22-2010 at 10:10 AM. |
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01-22-2010, 10:09 AM
| #4 |
| I wanna be Dave Join Date: Oct 2007 Location: Castle Rock, WA
Posts: 8,785
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I would say the used vs. new is causing it. Swap the motors and see what it does. But like they said a two motor moa rig will do that anyways to a degree. Not trying to thread jack but it's along the same lines... Can anyone confirm or deny using different gauge wires to the front and rear to help with the rear stall issue? Not that I am worried about the stalling. Helps out sometimes. ie. 20 guage to front motor and 12 gauge to the rear motor? Path of least resistance concept... Edit, This is for a 3 ch radio setup. Not front/rear motor mixing. Last edited by Szczerba; 01-22-2010 at 10:14 AM. |
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01-22-2010, 10:12 AM
| #5 | |
| I wanna be Dave Join Date: Jan 2009 Location: laying low
Posts: 2,508
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01-22-2010, 10:59 AM
| #6 |
| RCC Addict Join Date: Jul 2008 Location: Sin City
Posts: 1,332
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I would agree its a combination of clod stall and old brushes, change them out and clean the comm and you should be fine. In regards to the different motor wires it CAN make a difference but in order to make it noticable you would need to run super small guage to the front, not neccesarily larger to the back. Remember clod stall works both ways, uphill and downhill. Dont overcorrect for something that you might need when going the other direction. If it bugs you that much do like 53Willy's suggests and get 2 escs and a good 3 channel radio with mixing. You can change it on the fly and adjust it as needed depending on the situation.  |
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