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no limiter on dyno ? (m) (archive)
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Posted by ben keyes on December 10, 2000 at 20:25:57:

In Reply to: Just arming you with some information... posted by Esteves on December 09, 2000 at 16:10:21:



I obtained the above picture WITHOUT any chip/engine modification. My M Coupe is completely stock, save for the suspension. It seems the speed limiter is non-existent.

didn't we come to the conclusion that the speed limiter was in-active when the car was on the dyno due to it being "confused" by the condition that the car was in - i.e. the front wheels not turning at all & the rears spinning to beat the band ??

I recall someone explaining how this happens, but not exactly.

having said that, I also recall that I have read that you cannot get a good dyno test of an E39 M5 in 6th gear due to the speed limiter kicking in. I think that since the M5 has the more sophisticated DSC as opposed to the (relatively) simpler traciton control that we have on our M/Z3's it likely allows for the dyno situation for some reason.

I'll assume that the limited is there & maybe I'll hit it at the track next summer. in the meantime I'll keep the ASC on & watch out for the snow.

Ben Keyes
'99 M coupe w/snows
'87 332is w/snows

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