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Old 10-28-2007, 06:19 PM   #1
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Default pros and cons

I race on indoor asphalt track and would to pros and cons of standup brush and lay down brush motors
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Old 10-28-2007, 08:28 PM   #2
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It should read what is pros and cons with stand up and laydown brushed motors
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Old 10-29-2007, 05:16 AM   #3
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i'm seeing double! two MMS's?
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Old 10-29-2007, 05:20 AM   #4
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yes there 2 of us he is my kid
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Old 10-29-2007, 05:25 AM   #5
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ohhhhhhhhhhhh that explains it!
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Old 10-29-2007, 12:58 PM   #6
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ohhhhhhhhhhhh that explains it!
lol
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Old 10-29-2007, 12:59 PM   #7
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It should read what is pros and cons with stand up and laydown brushed motors
stand up brushes are used with mod motors i know that.

laydown for stock and 19 turn
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Old 10-29-2007, 04:08 PM   #8
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stand up brushes are used with mod motors i know that.

laydown for stock and 19 turn
i have stand up brush on my 19 turn epic motor...
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Old 10-29-2007, 05:43 PM   #9
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i have stand up brush on my 19 turn epic motor...
Stand up brsuhes are only used in 19t motors designed for Oval, they don't work well in Onroad.
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Old 10-30-2007, 11:32 AM   #10
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laydown endbells limit timing, and never should be used on mods.
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Old 10-31-2007, 06:40 AM   #11
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How does laydown endbell limit timing
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Old 10-31-2007, 08:10 AM   #12
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On all mods you can adjust timing with standup brushes you can go over 50% past comm plates or half the thickness of the brush before collapsing the armature field, on laydown brushes with a mod arm the brush can target 0 degrees easy. You can potentially short arm current too much.

If you take the brushes out you should see if the timing is 0, 2 plates intersecting on one pole and one full plate on the other pole, timing is set anywhere before the split or after the split. Lay down brushes can cause the field to stay on either to long or charge up too quick depending on timing because the laydown brush has more horizontal contact.

Most pre P2K arms are smaller diameter, on P2K arms lay down brushes have little effect.
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Old 10-31-2007, 08:44 AM   #13
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jugenaut that is good to know thanks
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Old 11-11-2007, 04:30 AM   #14
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Default THANK

THANK YOU
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