RCCrawler Forums - Gear Ratio on Overdrive Pinion/Ring gear set?

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Timmahh

08-08-2020 07:02 PM

Gear Ratio on Overdrive Pinion/Ring gear set?

Looking for the gear ratio spec on the overdrive set of gears.

Isn't it pinion divided by ring tooth count? Or is it the other way.
Been too many decades since I thought about this stuff. lol

I think it is about a 3.37:1 ratio, but figured I should ask.

OSRC	08-09-2020 06:38 AM

Re: Gear Ratio on Overdrive Pinion/Ring gear set?

You are correct. Ring gear/pinion gear.

OD: 27/8=3.375
Stock: 30/8=3.75

((3.75-3.375)/3.75) *100 = 10% overdrive

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