Quote:
Originally Posted by Onurleft
...A 1/4 mile argument was made in terms of speed which was kind of mis-leading. If a stock E46 M3 can run 13.2@106, and a stock E92 M3 can do 12.6@114 regardless of end speed, the distance separating them, as distance is more a factor of time NOT end velocity (the acceleration velocity is not constant) is not going to be "8.5" car lengths... It will be more like 2-3+, and we have a passenger in the E92 M3 here...
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You've made the E46 quicker than the magazine times, while keeping the E9X roughly where the magazines put it.
OK, fair enough, but with the six tenths between them and the E46 going 106, let's say that car picks up speed at eight mph per second near the finish line, so in six tenths of a second it will pick up about five mph, meaning it was going 101 mph when the E9X finished. Further figure it averaged about 103.5 mph for that duration, which is a bit over 90 feet.
90 feet is about six car lengths, using your ET estimates and trap speed for the E46.
If we use the more "normal" magazine average for the E46 at around 13.5 seconds, we're looking at around nine car lengths, using your ET for the E9X.
This ain't rocket science.
Bruce