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Race Mode Rev Limiter?

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Old 03-17-2018, 09:04 PM
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C63 AMG S Coupe (Sept. 2017)
Race Mode Rev Limiter?

Was having fun in the car today with a motorcycle doing rolling races in Race mode - C63S coupe.

Question - and the manual isn’t very clear on this if I wasn’t paying attention is it possible to pass the rev limiter in Race mode? Not sure if I was only hitting the limiter or if I shifted in time. Hopefully it still cuts power in Race mode.

Anyone have any experience with the rev limiter in Race mode?
Old 03-17-2018, 10:08 PM
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Originally Posted by BrownDog09
Was having fun in the car today with a motorcycle doing rolling races in Race mode - C63S coupe.

Question - and the manual isn’t very clear on this if I wasn’t paying attention is it possible to pass the rev limiter in Race mode? Not sure if I was only hitting the limiter or if I shifted in time. Hopefully it still cuts power in Race mode.

Anyone have any experience with the rev limiter in Race mode?
What I like to do is leave it in auto and race which means it will not shift automatically unless you hit the red line but you can shift manually anytime you like and if you are distracted it will shift instead of hitting limiter and cutting power.
Old 02-28-2020, 09:02 AM
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Question

Originally Posted by RDOCA
What I like to do is leave it in auto and race which means it will not shift automatically unless you hit the red line but you can shift manually anytime you like and if you are distracted it will shift instead of hitting limiter and cutting power.
Does the rev limiter in the C63S actually activate in Race mode even when using Manual mode?
Old 02-28-2020, 01:12 PM
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The rev limiter is there to protect the engine. Unless you have a tune that changes the rev limit (or money shift a manual trans), you won't be able to exceed the limit.
Old 02-28-2020, 01:54 PM
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Pre-FL does not allow overrevving I believe

On the FL it was annouced that you can now over rev in manual mode after which you will get fuel cutoff
Old 02-28-2020, 02:24 PM
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I thought with the 2020 model, there was NO protection in Race Mode for overr-revving and blowing the engine. I hope I'm wrong.
Old 02-28-2020, 02:28 PM
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Originally Posted by Xec
Pre-FL does not allow overrevving I believe

On the FL it was annouced that you can now over rev in manual mode after which you will get fuel cutoff
Pre-FL and no rev limit here (tried in P and N)
Old 02-28-2020, 03:48 PM
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All engines have a rev limiter. They don't let you rev past a point where engine damage is likely to occur. In addition the transmission won't let you do a money shift. If you try to downshift and the lower gear would put the engine above a safe rpm, it will simply refuse the shift. In the FL with the digital instrument cluster, it flashes red if that happens. It's the same in every mode. You could theoretically rev the engine past a safe point by going downhill with enough gravity. Not sure what would happen in this case.
Old 02-28-2020, 10:13 PM
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Originally Posted by untamedd
Pre-FL and no rev limit here (tried in P and N)
What happens if you floor it all the way in 1st gear and you see the words "UP" blinking on the dashboard? If you don't shift but continue to accelerate, does your engine not cut out?

On my one it says "UP" as you rev through the gears. Does yours do the same like below?

Last edited by George_1992; 02-29-2020 at 02:15 AM. Reason: Pic added
Old 02-04-2021, 06:50 PM
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Originally Posted by George_1992
What happens if you floor it all the way in 1st gear and you see the words "UP" blinking on the dashboard? If you don't shift but continue to accelerate, does your engine not cut out?

On my one it says "UP" as you rev through the gears. Does yours do the same like below?
I have a 2020, which I have taken to the track.
It absolutely does have a rev limiter at 7k and does fuel cutoff if you hit the limiter.

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