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Rev Limiter or Lack Thereof?

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Old 09-02-2008, 02:24 PM
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I was on the freeway in eastern Washington recently, and "opened her up"... To my surprise, the tach registered 6700 before I let off. I thought these things had overrev protection??
Old 09-02-2008, 05:36 PM
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I have bounced mine a couple times (hope my SA isnt reading this).

I seem to think it hit at 7000, right on the redline.
Old 09-02-2008, 05:55 PM
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There is a rev limiter but I don't think you can hit it on purpose with the SAT (and probably not the Step either) since it will upshift, right?
Old 09-02-2008, 06:06 PM
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Unless you have a manual transmission, it will not hit the rev limiter. No matter how much you open her up, with the sports automatic trans, it will shift before limiting out.
Old 09-02-2008, 06:21 PM
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I remember it being a soft rev limiter, it doesn't just shut off. I forget, with SAT it upshifts itself in SM mode? I know it downshifts itself when you floor it.
Old 09-02-2008, 06:30 PM
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Originally Posted by dbae1978' post='660389
I remember it being a soft rev limiter, it doesn't just shut off. I forget, with SAT it upshifts itself in SM mode? I know it downshifts itself when you floor it.
Yes, the SAT does upshift at redline, even in full manual mode (in addition to the kickdown that you mentioned...)
Old 09-02-2008, 10:31 PM
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Well, that's what I understood as well... so what's with 6700 rpms and no upshift yet?

Cal
Old 09-03-2008, 02:04 PM
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Originally Posted by calpalmer' post='660591' date='Sep 3 2008, 02:31 AM
Well, that's what I understood as well... so what's with 6700 rpms and no upshift yet?

Cal
Try it all the way, don't be shy - just stay on it and let it go to 7000. It'll shift at redline. That's why you bought a BMW - remember?
Old 09-03-2008, 02:47 PM
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Originally Posted by Rudy' post='660418
Try it all the way, don't be shy - just stay on it and let it go to 7000. It'll shift at redline. That's why you bought a BMW - remember?
+1 Just gun it! Don't be afraid to push it.
Old 09-03-2008, 03:14 PM
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the only way to really over-rev is to take a stick car to say 80mph and shift it into 2nd and release the clutch. That's called a money shift because it's going to end up costing you. you can't over-rev using the gas pedal, you will hit the rev limiter.


A friend did it to his M3- he wanted 4th, he got 2nd- $4k later all was fixed...


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