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Old 08-10-2004, 06:35 AM   #1
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Default Brushes for a KR

I'm running 11 and 12 doubles, on a large open track in a TC3.
Anyone got any brush recommendations?
thanks
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Old 08-10-2004, 07:12 AM   #2
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get a v2 endbell conversion kit and use sprint brushes.
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Old 08-10-2004, 07:33 AM   #3
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The Reedy 766 is the only way to go. Get the stiffest springs you can find, back the timing down to 12 degrees or less and gear up. It will be fast and the comm will last longer.
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Old 08-10-2004, 03:41 PM   #4
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Default 767s

You will get a little more comm wear, BUT, you will aslo get more RPM and TORQUE. Try em you will see. Stay with the earleir recomended timing.
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Old 08-10-2004, 04:49 PM   #5
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Quote:
get a v2 endbell conversion kit and use sprint brushes.
The v2 endbell is built for coms with standup brushes don't think it would be appropriate for a KR which uses laydown brushes.
Use either Reedy 766 or 767 brushes with around 12 to 15 degrees timing.
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Old 08-10-2004, 04:55 PM   #6
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The fact they are laydown brushes doesn't matter much, its the fact its a 9mm comm, which I doubt would even fit in the V2 endbell......not to mention turning your motor into a hybird will make it illegal at some tracks and most big races.....

766 or 767s will work....I wouldn't use a 767 if yer a throttle jockey though.

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Old 08-10-2004, 05:01 PM   #7
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I agree,No doubt ,767's.....And If you use a fiddle stick (which is about the only way I know of to "accuratly" measure spring pressure while taking into account your comm thickness and brush length , not to mention the wide variety of spring pressure readings you "can" get from the "exact same" color and brand springs (my point is, that they have very little uniformity to them).......try 7.5 fs units on the positive...and 7.0 fs units on the negative...this is supposed to be the ideal pressures to have on the motors you have acording to big jims website ....and like everyone said 12 deg's is about perfect......
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Old 08-10-2004, 05:04 PM   #8
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Mabe Eddie can back that up, he knows alot more than me
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Old 08-10-2004, 05:12 PM   #9
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Kinetix used to sell those actron 766 brushes in bulk. Maybe we can get Ron to stock them again.
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Old 08-10-2004, 05:15 PM   #10
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I've got them right now....let me know how many you want.

PM for pricing and stuff....

Later EddieO
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Old 08-10-2004, 05:23 PM   #11
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Awesome, thanks for the replies guys.
I have a couple of V2 endbells on order already to revitalise some old Ti's, and I'm pretty sure they won't work with the big commed Kr's.
I'm off to stock up on 766 and 767s!!
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Old 08-11-2004, 12:33 AM   #12
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yes i forgot about the 9mm comm.oooppppss.
i dont think that laydown or upright brushes come into into it though.
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