Jeremy (Rastaman) takes Haf for a couple laps. Haf must have left the mount completely untightened because in the portion where it rotates you can see the washer hanging free with about a .200" gap. These mounts never come loose, even at 240 km/h or 4G. Nice to see Haf having such fun after working so quickly to take all those awesome photos at the trackday.
[YOUTUBE]http://www.youtube.com/watch?v=W23QlDbUY6E&ap=%2526fmt%3D18[/YOUTUBE]
[YOUTUBE]http://www.youtube.com/watch?v=JymT5LbcHjE&ap=%2526fmt%3D18[/YOUTUBE]
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Shaun takes Ryan Lee for a couple laps. First time driving any E92 and first lap a 42.3 with DSC left on (data and third party). Was extremely pressed for time (track session was about to end) and did not get to adjust seat and wheel to satisfaction. Completed only 1 hot lap before traffic and session conclusion got in the way.
DSC extremely intrusive and does not allow throttle roll on till very late in a turn. Seems to be heavily dependent on steering angle. To minimize DSC effect on lap time as much as possible requires different strategy in the real tight low speed sharp turns vs the big sweepers for various reasons, and all steps taken will result in a slower lap if DSC were off. IOW, it rewards certain driving errors and can end up reinforcing certain bad habits if the driver is not aware. Have data to show DSC over-interference extremely clearly. Will post in future. Twice in the lap you can hear "DSC" mentioned twice where it cuts in most severely, but besides that it affects all turn exits (you can even hear it in the video, T4, T14, etc.) except for T3. Having experienced Z4M DSC previously on track had started to work to figure out what BMW DSC was looking at to do its work and a way around it. Narrowed it down to 2 main areas and this recent drive in the E92 narrowed it down to a single main factor that now can be dealt with.
Car as it was at that trackday was capable of a 40.7 using 6 sets of 5 non-compromising segments in total, from 2 drivers, back to back. Most of T5 was compromised as you can see in the video with leftover oil dry . Estimate at least 6 seconds improvement from turning DSC off. Other lesser powered cars with less intrusive forms of TC have saved anywhere from 4-7 seconds by turning it off as long as driver knows roughly what he's doing.
Friend who has worked for Toyota as a chassis evaluation engineer in Europe, including all benchmark and competitor marque cars like Merc, BMW, Audi, came along for a ride and was amazed at the grip and body control that a car that heavy possessed. "Incredible" he said.
[YOUTUBE]http://www.youtube.com/watch?v=dEwX_Evwp6U&ap=%2526fmt%3D18[/YOUTUBE]
[YOUTUBE]http://www.youtube.com/watch?v=W23QlDbUY6E&ap=%2526fmt%3D18[/YOUTUBE]
[YOUTUBE]http://www.youtube.com/watch?v=JymT5LbcHjE&ap=%2526fmt%3D18[/YOUTUBE]
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Shaun takes Ryan Lee for a couple laps. First time driving any E92 and first lap a 42.3 with DSC left on (data and third party). Was extremely pressed for time (track session was about to end) and did not get to adjust seat and wheel to satisfaction. Completed only 1 hot lap before traffic and session conclusion got in the way.
DSC extremely intrusive and does not allow throttle roll on till very late in a turn. Seems to be heavily dependent on steering angle. To minimize DSC effect on lap time as much as possible requires different strategy in the real tight low speed sharp turns vs the big sweepers for various reasons, and all steps taken will result in a slower lap if DSC were off. IOW, it rewards certain driving errors and can end up reinforcing certain bad habits if the driver is not aware. Have data to show DSC over-interference extremely clearly. Will post in future. Twice in the lap you can hear "DSC" mentioned twice where it cuts in most severely, but besides that it affects all turn exits (you can even hear it in the video, T4, T14, etc.) except for T3. Having experienced Z4M DSC previously on track had started to work to figure out what BMW DSC was looking at to do its work and a way around it. Narrowed it down to 2 main areas and this recent drive in the E92 narrowed it down to a single main factor that now can be dealt with.
Car as it was at that trackday was capable of a 40.7 using 6 sets of 5 non-compromising segments in total, from 2 drivers, back to back. Most of T5 was compromised as you can see in the video with leftover oil dry . Estimate at least 6 seconds improvement from turning DSC off. Other lesser powered cars with less intrusive forms of TC have saved anywhere from 4-7 seconds by turning it off as long as driver knows roughly what he's doing.
Friend who has worked for Toyota as a chassis evaluation engineer in Europe, including all benchmark and competitor marque cars like Merc, BMW, Audi, came along for a ride and was amazed at the grip and body control that a car that heavy possessed. "Incredible" he said.
[YOUTUBE]http://www.youtube.com/watch?v=dEwX_Evwp6U&ap=%2526fmt%3D18[/YOUTUBE]