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03-25-2008, 09:41 PM
| #1 |
| Quarry Creeper Join Date: Sep 2005 Location: on the rocks
Posts: 477
|  More reverse than forward with a MM
I've had my MM awhile and never noticed this before but I just switched motors so it might be more noticable now. I went from a Crawlmaster to a 7t puller and noticed today it goes abotu 25% faster in reverse full throttle than forward:? Everything is set up so they should be equal and as far as I know. What could cause this?
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03-25-2008, 09:47 PM
| #2 |
| Keep it real   Join Date: Jun 2006 Location: Yakima,WA
Posts: 6,532
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Try recalibrating your radio to the ESC yet?
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03-25-2008, 09:53 PM
| #3 |
| Quarry Creeper Join Date: Sep 2005 Location: on the rocks
Posts: 477
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Actually I forgot all about that  I'll give it a shot, thanks Tanis  |
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03-25-2008, 09:55 PM
| #4 |
| Keep it real Join Date: Jun 2006 Location: Yakima,WA
Posts: 6,532
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Hopefully that is the problem....an easy fix |
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03-25-2008, 10:23 PM
| #5 |
| owner, Holmes Hobbies LLC  Join Date: Nov 2004 Location: Volt up! Gear down!
Posts: 20,290
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Be sure the ESC lights up green in forward and that the motor spins forward too. The motor timing. I need to make a thread or something for this. Make a tic mark somewhere on the can and top so you know where to start from. Move the silver endbell a tiny bit and try again. Then advance or retard the motor a bit and see which way is "advanced" timing for your tranny and axle rotation. Faster is advanced, and retarded timing will throw a bunch of sparks and run horribly. Last edited by JohnRobHolmes; 03-25-2008 at 10:25 PM. |
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03-25-2008, 11:06 PM
| #6 |
| Quarry Creeper Join Date: Sep 2005 Location: on the rocks
Posts: 477
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Tanis nailed it I cant beleive how much of a difference it made. I sent one back for repairs and must have forgot to set this one JRH this motor made my 2.2 straight up haul ass with a 3cell 40c burst lipo I cant believe it has as good of low end grunt and insane speed it does. I just took it out and was jumping ledge's I usually cant get up cause the belly drags The vid's I've seen do this thing no justice I did notice it got a bit warm after say 30minutes of really ripping on the throttle. Can I run a heat sink on it to help with this?? Obviously I wont be driving like this all the time but if it helps keep it cooler when I do it might not be a bad ideal. |
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03-25-2008, 11:10 PM
| #7 |
| owner, Holmes Hobbies LLC Join Date: Nov 2004 Location: Volt up! Gear down!
Posts: 20,290
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A heat sink wouldn't hurt it. It will get warm after lots of running, just depends on your throttle finger.
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03-25-2008, 11:24 PM
| #8 |
| Quarry Creeper Join Date: Sep 2005 Location: on the rocks
Posts: 477
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I was ripping into ti pretty hard tonight. Just cool having that much power on tap. I'll see how it runs under normal conditions for temps. If it gets pretty warm I'll toss a heatsink on it.
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