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Brushless 13.5 gearing

Brushless 13.5 gearing

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Old 10-14-2007, 12:30 AM
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Questions?? Brushless 13.5 gearing

Hi guys,

what are you guys gearing ur 13.5's at. I run a B4 and dont know what pinion to run. Just running the 81 spur. Thx guys,



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Old 10-14-2007, 06:09 AM
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I run an 81 spur on my XXX and a 26 pinion with it. You still can go up a tooth or two with it though.
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Old 10-14-2007, 06:25 AM
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Gear it really high. People are gearing them really high. At my track everyone is using 24-27t pinions. I gear mine 26/78 and it comes off cool after a 6min main. Check out this other gearing thread. http://www.rctech.net/forum/showthread.php?t=148207
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Old 10-14-2007, 06:34 AM
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there are eight of us race b4 13.5's pros at our track. we all run 78t spur gears and very between 28-32 t pinions. We all use sintered rotors.

we all gear to temp, between 145- 165 degrees
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Old 10-14-2007, 06:38 AM
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30t no problems, still cool. sinter rotor
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Old 10-14-2007, 09:47 AM
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hey thx guys. I will start with a 25 and go from there.
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Old 10-14-2007, 10:02 AM
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I ran 27T with 78T on mine.
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Old 10-14-2007, 11:02 AM
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Originally Posted by XXXCRRacer View Post
hey thx guys. I will start with a 25 and go from there.
best feel for me was 81/24....motor pulls off cold, so id think you could go up t 81/26....but 81/24 has the "feel"
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Old 10-14-2007, 07:28 PM
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hey thx guys for the help. MUch appreciated.
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Old 10-14-2007, 08:46 PM
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Originally Posted by Kings Kid View Post
there are eight of us race b4 13.5's pros at our track. we all run 78t spur gears and very between 28-32 t pinions. We all use sintered rotors.

we all gear to temp, between 145- 165 degrees
And 2 of you run the X-6, and 2 or 3 others run the XXX (they weren't counted in his count), and one more will run the RB5
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Old 10-14-2007, 09:33 PM
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RB-5/13.5 sintered and I ran 76/30...it would barely get warm.
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