I am fairly sure those equations are derived from the laws of Physics.
They show the theoretically perfect outcome with a continually variable
transmission that keeps RPM at the peak HP for the entire 1/4 mile and no
wind resistance, tire slippage, or reaction times. (or even stored energy
in the flywheel before the green light)
But they are still damn close to the real world results. You can figure out
the power to weight ratio from 0-60 times, 1/4 mile times, or 1/4 mile trap
speeds but the most accurate indicator is the 1/4 mile trap speeds:
http://www.autospeed.com/A_1073/page1.html
Ed McGuirk
At 01:04 PM 7/1/2002 -0600, you wrote:
>Date: Mon, 1 Jul 2002 12:09:06 -0400
>From: "Mark Holveck" <mholveck@princetonpower.com>
>Subject: RE: Elapsed Times, etc.
>
>I thought the equation looked like it was derived empirically from data
>taken at the track from many cars. I think that if you derived one assuming
>constant horsepower that it would not be accurate at all. But the one Dick
>gave us seems to be pretty close, which makes me think that it's generated
>from track data. Of course, I could be wrong.
>
>- -mark
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