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      03-23-2012, 09:42 AM   #1
ohm3
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What Rpms do you guys shift at

Hi it's my second post here . I have completed my 2000km break in and have got the first service done . My question is that apart from hitting the red line couple of times what Rpms do you guys shift at . What should the shift points be considering I want to keep this car for a long time .
Thanks for your inputs.
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      03-23-2012, 09:44 AM   #2
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Whatever the fuel cutoff is. I'm guessing 8400 rpms.
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      03-23-2012, 09:46 AM   #3
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1st gear at 7800rpms (because the tachometer lags behind the revs)
Every other gear, ~8,400rpms
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      03-23-2012, 09:48 AM   #4
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Whenever the shift light tells me to shift
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      03-23-2012, 10:05 AM   #5
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It's funny how on every car forum people ask this. As if there's some magical number that is correct.

Here's a short answer, it varies. Does that help?
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      03-23-2012, 10:10 AM   #6
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Quote:
Originally Posted by DARK_M3 View Post
It's funny how on every car forum people ask this. As if there's some magical number that is correct.

Here's a short answer, it varies. Does that help?
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      03-23-2012, 10:23 AM   #7
ohm3
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Sure it helps , I was only looking at it from the point of view of engine life.
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      03-23-2012, 10:26 AM   #8
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Quote:
Originally Posted by DARK_M3 View Post
It's funny how on every car forum people ask this. As if there's some magical number that is correct.

Here's a short answer, it varies. Does that help?
Magic, how does it work?

Ironically, depending on the engine, configuration, there are sweet spots for shifting and keeping ideal mpg. While it depends in general, you can find the ideal operating rpms and gears for highway and around town driving to achieve the particular desired results.

My previous car was turbocharged, after a certain RPM, power would drop, before redline, so shifting points would be adjusted to power curve, not redline.
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      03-23-2012, 10:27 AM   #9
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around town 3500 - 4k.
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      03-23-2012, 10:30 AM   #10
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8400, WOT all the way too.
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      03-23-2012, 10:34 AM   #11
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Shifting between 3500-4000 rpm generally and 8400 some times looks good for the longevity of the engine if I am correct .
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      03-23-2012, 11:00 AM   #12
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Quote:
Originally Posted by ohm3 View Post
Shifting between 3500-4000 rpm generally and 8400 some times looks good for the longevity of the engine if I am correct .
whatever floats your boat, there's no correct answer.
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      03-23-2012, 11:01 AM   #13
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Thanks guys.
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      03-23-2012, 11:14 AM   #14
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The real question is at which rpm do I shift if in a female M3 with the oil level at the middle and using BMW Connected Apps?
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      03-23-2012, 11:16 AM   #15
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This question is new and original.
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      03-23-2012, 11:17 AM   #16
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Shift at a point before the fuel cut off happens- hard to do with all the tire spin in first!
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      03-23-2012, 11:43 AM   #17
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Quote:
Originally Posted by gblansten View Post
The real question is at which rpm do I shift if in a female M3 with the oil level at the middle and using BMW Connected Apps?
depends on whether you're a "serious driver" or if you plan on breaking your rear differential bolt

Last edited by mdosu; 03-23-2012 at 11:52 AM.
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      03-23-2012, 11:52 AM   #18
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Quote:
Originally Posted by mdosu View Post
depends on whether you're a "serious driver" or if you plan on breaking your rear differential bolt
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      03-23-2012, 11:55 AM   #19
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what your supposed to shift.
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      03-23-2012, 11:57 AM   #20
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If you're concerned about prolonging engine life then shift at 2.3k rpm's always. Last I heard however, when an engine is tested for any kind of durability, they (the auto manufacterer) runs it at or close to redline for something like 30 hours straight. I could be way off on this but I think it's somewhere in the ballpark.

You're engine will outlast you and whatever you choose to shift at so long as you are maintaining it properly.
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      03-23-2012, 12:17 PM   #21
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Over thinking it bro...

There are much more important things that will make this engine last longer than at which RPM you shift. This is an M3, it was meant to be beat on and driven hard.

Shifting at different RPM will help you attain better fuel economy, but I don't see it having any correlation with engine life so long as the car is maintained well. Someone correct me if I am wrong.
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      03-23-2012, 12:35 PM   #22
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around 2500-3000
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