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Old 05-27-2016, 11:15 PM   #1
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Default How to choose transmission ratios?

Possibly a stupid question, but for the track I understand you want gears for the corner speeds you'll be at.

For the street, why is a progressively closer gearing (say, 33% drop to second, 26% to third, 23% to fourth, 20% to fifth, 17% to sixth) optimal over a steady gearing, like 25% drops across the board?
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Old 05-27-2016, 11:30 PM   #2
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I think you have to work with what is available and make it work. you can look at flyinMiata calculator https://www.flyinmiata.com/tech/gearing.php
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Old 05-27-2016, 11:45 PM   #3
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Yes. One does have to work with what actually exists. That doesn't answer my question, though.
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Old 05-27-2016, 11:56 PM   #4
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because the torque multiplication drops too and your car will feel like a dog
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Old 05-28-2016, 01:01 AM   #5
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Aerodynamic drag becomes a factor, hence gear ratios get closer.
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Old 05-28-2016, 04:22 AM   #6
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Quote:
Originally Posted by M2Ken View Post
Aerodynamic drag becomes a factor, hence gear ratios get closer.
This is the correct answer
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