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      08-16-2012, 03:11 PM   #9
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Drives: 2007 Honda S2000, 2017 GT350
Join Date: Sep 2008
Location: Cedar Park, TX

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2011 E92 M3  [4.67]
2014 BMW i3  [5.00]
Originally Posted by LM3 View Post
Looks to me that much of the difference can be attributed to the higher corner exit speeds with the cups. For example, you're 7 mph up with the cups coming onto the front straight (@ 1:39). At peak speed on the straight, you reach 115 with the cups, and 113 with the ss. So that gap was closed to 2 mph with the ESS kit.

All of that said, I think the best look at your straight line acceleration is on the front straight as you shift into fourth. I honestly was expecting more between 103-113 mph in fourth. Could very well be the hot weather.

Top speed for me on my home track is in the 120-130 range down the back straight. On a 50-60 degree day I can nearly clip 130 mph whereas on a 90 degree day I'm just over 120 mph. Same tires, identical final corner exit speed, same brake point.
Yea the front straight is what really got me wondering. I was expecting it to accelerate a bit faster than it did when compared side by side.
2011 E92 M3(Sold). 2007 Honda S2000 (Track Car). 2016 Cayman GT4 (Sold). 2017 Shelby GT350 (AKA Crowd Killer).

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