Do not run the 12 tooth. I have played with these and they are great when geared right. Be sure to break in the brushes with the system of your choice. Break it in until after flushing the motor out, you can see the comm tracking almost even over the surface. It will never [almost] have perfectly even wear.
11/38 or 12/41 (72 pitch) is a good starting point. We have four-five races on these motors at 13.4 Rivergate volts.
Motor notice from JK Products
Started by
Jerry Kulich
, Jan 18 2011 06:58 PM
28 replies to this topic
#26
JohnnySlotcar
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Posted 20 January 2011 - 04:22 PM
John Austin
#27
Steve Deiters
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Posted 20 January 2011 - 04:36 PM
Looking at the two endbells and the brush location, has the timing changed on these motors either by the location of the brushes or has the timing in the comms been altered to make them "equal"?
The contact points for the H7 look to be at the 1/7 o'clock position (or advanced) while the Falcon it appears to be 12/6 o'clock (top dead center) so to speak. Or is it an optical illusion because of the brush wear?
Inquiring minds need to know!!
The contact points for the H7 look to be at the 1/7 o'clock position (or advanced) while the Falcon it appears to be 12/6 o'clock (top dead center) so to speak. Or is it an optical illusion because of the brush wear?
Inquiring minds need to know!!
#28
Rick
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Posted 20 January 2011 - 05:19 PM
Steve, 1 oclock/7 oclock, 12 oclock/6 clock. Different factory, different engineers. Doesn't matter how you get to the top of the mountain, many paths lead there, just get there. Remember, the goal is who collects the most dead presidens............. 
Rick Bennardo
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#29
MSwiss
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Posted 20 January 2011 - 05:36 PM
I'm more organized than I thought. I found the 2 endbells in the pic.Looking at the two endbells and the brush location, has the timing changed on these motors either by the location of the brushes or has the timing in the comms been altered to make them "equal"?
The contact points for the H7 look to be at the 1/7 o'clock position (or advanced) while the Falcon it appears to be 12/6 o'clock (top dead center) so to speak. Or is it an optical illusion because of the brush wear?
Inquiring minds need to know!!
The difference is definitely the brush wear. The brush arms and the position of them,
as far as I can tell, is identical.
BTW, I get the occasional grumble on my fairly tight connection with Jerry.
Along with stuff like designing his Retro F1 chassis, taking time to post pics like the one's above and supply info on products
while he's busy filling orders, is probably a fairly good reason why.
Mike Swiss
Inventor of the Low CG guide flag 4/20/18
IRRA® Components Committee Chairman
Five-time USRA National Champion (two G7, one G27, two G7 Senior)
Two-time G7 World Champion (1988, 1990), eight G7 main appearances
Eight-time G7 King track single lap world record holder
17B West Ogden Ave., Westmont, IL 60559, (708) 203-8003, mikeswiss86@hotmail.com (also my PayPal address)
Note: Send all USPS packages and mail to: 692 Citadel Drive, Westmont, Illinois 60559
