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Discussion Forum

Re: numerical transmission and final drive gear ratios for WC?

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Ken Foland

03-23-2002 20:28:38

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WC numbers for total drive ratio are.
First 67.6
Second 46.5
Third 35.
Fourth 18
Standard tires were 12.4 x 28

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03-24-2002 05:57:26

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 Re: Re: numerical transmission and final drive gear ratios for WC? in reply to Ken Foland, 03-23-2002 20:28:38  
you only need the gear ratio if you want the exact speed in MPH. figuring the original speed, compared to new speed with smaller tires, you will see that the gear ratio and final drive numbers dont change. the only number that changes is the tire diameter, so the difference is speed it the ratio of the old diameter to the new. If the tire is 10% smaller diameter, then you slow down 10% in top speed.

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Rick Z

03-24-2002 06:52:40

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 Re: Re: Re: numerical transmission and final drive gear ratios for WC? in reply to steve, 03-24-2002 05:57:26  
Thanks Ken. Steve, I wanted numerical ratios as its hard to figure 10% of "Gee, that feels a little fast". 10% of 3mph (for example) is easy to figure. I dont have original speed in mph. AC left speedometer off my WC...;-)). I dont have a cops radar gun to see what actual speeds are either. However if I know ratios, know engine rpm, then I can measure circuference of tire and figure speed pretty darn close and how much change in speed that a change in circumference actually amounts to.

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