Thread: Short Belt Life
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Old 03-09-2011, 01:51 PM
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darrelm47 darrelm47 is offline
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Join Date: Mar 2011
Location: Ramona, CA
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Ok I probably have gone overboard on this ratio stuff, but after much research and actually counting tire rotations to clutch shaft rotations I have figure out the correct formula for gear ratios. The only division is at the gear sets i.e. 42tooth driven gear divided by 15tooth pinion = 2.8 to 1 ratio. Next gear set 36 divided by 17 = 2.1 to 1 ratio. Multiply the two and the ratio is 5.9 to 1 ratio. There is no division at the final ratio. Now in my buggy the final gear ratio is 5.9 and the sprocket set is 2.4 thus giving me a total gear ratio of 14.5 to 1. I verified this by marking the rear wheel and marking the clutch shaft. The shaft turned 14 1/2 turns to one revolution of the tire. That should be an extreme amount of torque (possibly too much?).
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