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Howard Jones · 04-14-08, 10:31 PM

I have limited experience I have with chassis dynos but I believe that the gear that is closest to 1:1 is the best choice. I have never seen anyone do it any other way. In most cars this will be 4th. This will provide data that doesn't require a ratio conversion factor.

For example, if you used 2nd and it was 2.00:1 then you would need to divide the resulting data by 2. On the other hand if you used 5th and it was 0.8:1 you would need to multiply by a factor of 1.2.

If I am wrong on this then I am sure you will see the correction posted very quickly.

04-14-08, 10:31 PM	#2 (permalink)
Howard Jones 10 tenths Join Date: Jun 2002 GT40: San Francisco Bay Area California USA Posts: 1,884 Rep Power: 25	Re: Rolling Roads I have limited experience I have with chassis dynos but I believe that the gear that is closest to 1:1 is the best choice. I have never seen anyone do it any other way. In most cars this will be 4th. This will provide data that doesn't require a ratio conversion factor. For example, if you used 2nd and it was 2.00:1 then you would need to divide the resulting data by 2. On the other hand if you used 5th and it was 0.8:1 you would need to multiply by a factor of 1.2. If I am wrong on this then I am sure you will see the correction posted very quickly.