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-   -   mod 2wd esc temps (https://www.rctech.net/forum/radio-electronics/655572-mod-2wd-esc-temps.html)

elecRC23 08-26-2012 09:43 PM
also, which is better for the motor? Gearing up, or adding endbell timing?

MarkA 08-27-2012 10:40 AM
Originally Posted by elecRC23 (Post 11139781)
Okay, I'd like to gear up a bit because I can clear the triple at my track with a 20t pinion and an 81t pinion. But I can't with the 23t pinion. Can I use a 19t pinion with a 72t spur? Or would that be a little weird? By the way, thanks for all the input. Didn't expect all of these responses, but keep em coming!!
I don't think 19/72 will actually fit in terms of the pinion being able to contact the spur but it's a relatively minor change from 20/81 so if you can make it physically work, I can't give you a good reason not to try it.

MarkA 08-27-2012 10:42 AM
Originally Posted by elecRC23 (Post 11139784)
also, which is better for the motor? Gearing up, or adding endbell timing?
Gear up. Endbell timing moves the torque curve and typically generates proportionally more heat for the same increase in top speed as a gearing change will.

elecRC23 08-27-2012 04:19 PM
okay cool, yeah, im gonna try and see if it will fit. if itdoes, will it be considered gearing up or down?

MarkA 08-27-2012 09:32 PM
Originally Posted by elecRC23 (Post 11142922)
okay cool, yeah, im gonna try and see if it will fit. if itdoes, will it be considered gearing up or down?

"Gearing up" means to actually decrease the ratio so yes, that would be gearing up

elecRC23 08-28-2012 07:40 AM
okay, will be going to the track on thursday, so get back to you then.

elecRC23 08-29-2012 08:16 PM
19/72 doesn't fit. What about 19/75? If it fits. Would that be considered gearing up? Hopefully not. I want to gear down a little to get more torque.

MarkA 08-30-2012 08:35 AM
Originally Posted by elecRC23 (Post 11152283)
19/72 doesn't fit. What about 19/75? If it fits. Would that be considered gearing up? Hopefully not. I want to gear down a little to get more torque.
20/81 = 4.05 whereas 75/19 = 3.95 so technically, although that difference is small, it would count as "gearing up." What you want to do is run your 19 with your 81.

elecRC23 08-30-2012 07:06 PM
Okay, yeah tried it at the track today and worked really well! Thanks for all the help!


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