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Old 05-12-2014, 07:58 AM   #6
Keith Seymore
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Join Date: May 2009
Location: Motor City
Posts: 9,287
Re: Speedometer ratio

Quote:
Originally Posted by Big Dutch View Post
Used it and didn't work. Is there an engineer or someone who knows a calculator.
Quote:
Originally Posted by geezer#99 View Post
I used a calculator.
Your speedo reads 36 mph high which means you need to slow it down 37.5%
37.5% of 96 is 36.
96-36 is 60.
What more do you need?
This is correct.

Big Dutch: It is a straight up ratio of one number related to another.

The fact that you are calculating vehicle speeds is immaterial. The math would be the same if it was a compression ratio, a cookie recipe or comparing your net earnings to your gross earnings.

The link geezer provided is the one I always use.

K
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Last edited by Keith Seymore; 05-12-2014 at 08:06 AM.
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