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Old 06-14-2004, 06:58 PM   #1
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Default Need help with B4 gearing

I have a B4 Buggy with a 81 spur can anyone tell me what pinion I should use for these Modified motors (listed below). Also what timeing should I use for these winds Im currently running on a Med sized slippery track Im using a Reedy Ti yokomo motor can by Fantom.

18 Double

15 Double

13 Double

any help would be greatly appreciated.
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Old 06-14-2004, 09:31 PM   #2
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run between 12-18 degrees of timing 20 or 21 pinion on the 18 turn and on the 15 turn 8-16degrees of timing and a19 or 20 pinion and on the 13 turn 6-12 degrees of timing and a 18 or 19 pinion
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Old 06-18-2004, 07:52 PM   #3
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I'd have to say a 18 or 18t pinion should do it. But it all depends on the track layout/design.
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Old 06-18-2004, 08:31 PM   #4
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Ok i looked it up in my AE manual and for the 13t they suggest running a 22t pinion.

I gear my reedy KR 12x2 81/21=10.03:1 in my B4

I would gear the 15 and 18 harder again, i run a spec class every now and again and run 81/26!!

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