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Re: ASC On or Off (archive)

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Posted by Roy on May 14, 1999 at 11:13:38:

In Reply to: ASC On or Off posted by Stealthy on May 13, 1999 at 16:33:25:

At the performance driving schools here with the BMW Club of Canada, we *always* turn off our ASC if so equipped.

There are a couple of reasons really. Firstly, when you're in a high speed corner or coming out of a tight corner with full throttle (for example, entering a straight), you'll actually want your rear tires to slip a bit in order to unwind your steering once at the apex. With ASC on, you'll never achieve the true potential exit speed. I actually forgot about it for a couple of laps at a school a month ago and it just felt weird not being able to accelerate out of a tight corner going on to the back straight!

Secondly, if you're hard on the throttle and the ASC is triggered repeatedly, it's very hard on your brakes because part of it actuates the brakes to control wheel spin. Don't laugh, I've seen this happen especially on heavier cars like the 5- and 7-series where the brakes are over-worked. Hope this helped.

Roy

'99 M3/2


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