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      07-27-2019, 05:31 PM   #44
Max Well
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Drives: '22 BG X3MC, '20 BSM X3MC
Join Date: Jun 2014
Location: Southeast USA

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First Quarter Mile Formal Drag Slip

Much appreciation to Nate at IND for providing what I believe to be the first documented Qtr mile time for the X3M Comp [ https://x3.xbimmers.com/forums/showp...2&postcount=17 ].

Using data from airdensityonline.com, it appears the DA was quite high at +2388, so the numbers he obtained are very promising for this performance SAV. To provide some perspective, I also share GT500R's stock and modified data for his 2018 G01 X3 M40i [ https://x3.xbimmers.com/forums/showthread.php?t=1397744 ].

It would be helpful to know if he ran with the spare tire in back and what fuel load (and ideally the actual weight if available), but almost a guarantee that the dyno results are going to be higher than the reported 503 HP. To look at that, I plotted the Sim using the correct Cd (0.36), frontal area and used the conservative EU unladen weight for the X3MC to run the data. It has usually been fairly solid with most of the stock vehicles (see GT500R's stock run c/w the G01 M40i's Sim curve), but even with this really high DA, Nate was able to place well above the curve. As noushy suggested in a recent post [ https://x3.xbimmers.com/forums/showp...8&postcount=25 ], I wouldn't be surprised if it is more in the range of 530-540 HP.

Will be interested in seeing more of IND's posts on their findings.
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