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Motor temps and gearing

Motor temps and gearing

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Old 03-11-2011, 06:38 AM
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Default Motor temps and gearing

I have a SC10 with a Mamba Max Pro esc, Trinity D3 10.5 that is geared 20/87 and the motor never gets above 110. I need some help on gearing to get more top speed, and still have the torque on the low end. I don't want to run the motor real hot, but I have plenty of room before I get to that point. Any suggestions?
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Old 03-11-2011, 10:47 AM
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Have you tried a 21 tooth pinion? That will get you a little more top end but may hurt some bottom. Temps will go up.

Since you have the MMP; Do you have the castle link? If so try throwing some CHEAT timing at it. Try to get in the 5000-20000 rpm range and add a few degrees (5 or so) at a time and recheck your speed and temps. This would be better overall as you can keep your 87/20 for the bottom end you have now, but end with a higher top end (more timing advance = more rpm).

From what ive seen the D3 series motors respond very nicely with boost functions (Especially the 17.5 )
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Old 03-11-2011, 02:52 PM
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Originally Posted by eedsmx691 View Post
I have a SC10 with a Mamba Max Pro esc, Trinity D3 10.5 that is geared 20/87 and the motor never gets above 110. I need some help on gearing to get more top speed, and still have the torque on the low end. I don't want to run the motor real hot, but I have plenty of room before I get to that point. Any suggestions?
Try experimenting with pinions, more teeth= more top end, lose torque. Less teeth= less top end, more torque. It is opposite with spur gear. If it's running that cool I think you would be fine going up 2 teeth on pinion, when doing this or advancing timing always keep an eye on temps, check after 5 min. then every couple after that.
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