Interesting article on wheel (chassis) dynos
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Joined: May 2001
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From: Nowhere
Interesting article on wheel (chassis) dynos
Joined: Oct 2000
Posts: 9,210
Likes: 7
From: WA
His conclusions are based upon different assumptions than others so it is hard to fully agree with all the statements. BUT, I do agree that wheel dyno runs have so much variance that they are almost worthless (and certainly misleading) when comparing small changes. I have seen up to 3% variance with same car/day/dyno/operator runs, so comparing numbers when any of those things are different is not really valid.
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