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12122013, 03:22 PM  #24 
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and im saying it doesn't matter what the gearing is, you would never shift at 6000 RPM. under any circumstances.
anyway, doesn't matter. we will see how peoples impressions change when the car is available to test drive. I for one am almost certain it will be awesome and a huge improvement in performance and fun factor on the street and track
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12122013, 03:36 PM  #25  
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12122013, 03:41 PM  #26 
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12122013, 03:43 PM  #27 
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thanks for the post OP, i was watching that video for 3 years before being able to get my M3 <3
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12122013, 04:27 PM  #28 
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12122013, 04:29 PM  #29 
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If you make max power at 5500 rpm, and shift at 7000, well after power starts to fall off, you're going to be accelerating slower than if you're shifting properly and landing right in the meat of the powerband.

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12122013, 04:31 PM  #30 
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The lighter engine will aide in transient respsonse, grip and should in turn relate to an improvement in overall driving feel.

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12122013, 04:41 PM  #31  
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also notice how much more power under the curve the F80 makes compared to the e9x. hope this helps
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12122013, 04:46 PM  #32 
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Shifting ANYWHERE in the rev range, is not going to alter the ratio of the gears. It will always drop the exact same amount respectively. I would wager a bet, it won't be more than 1200rpms.
Shifting anytime after power drops off, will result in being slower to accelerate. Since that graph doesn't have any rpm designations, I cannot comment on it specifically. 
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12122013, 04:59 PM  #33  
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point remains on the f80 m3, shifting at higher RPMS will result in more average power since the power is flat for 2000ish RPM and does not drop off according to BMW.
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12122013, 05:19 PM  #35  
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Lastly, the new powerplant makes peak torque from 1850 thru 5500 rpm, whereas the current S65 doesn't peak until 3900 rpm, and starts losing torque after that. Admittedly that curve is extremely flat, losing only around 11% over a 4400 rpm window, which is terrific for a smog legal street engine. However, this new super six will make approximately the same power after each shift as it did before each shift (except for the 12), which means the car will accelerate just as hard in the next gear. This is almost unheard of. You are correct in assuming the new one won't charge to redline with the same brassy, blaring, clarioncalltobattle that the current car does, but it sure as hell won't be feeling weak, either. And with 406 pound feet at low rpm, it'll have that effortless feel that the current one lacks. Come around that 90degree corner in third, and just pull away on a lownoise tsunami of torque. Bruce 

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12122013, 05:26 PM  #36  
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12122013, 05:38 PM  #38  
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On just about any automotive engine, you must shift past the power peak for max acceleration. Reason: You're trying to achieve max average power over whatever distance or speed delta. This new engine may be an anomaly, since each gear change (after the onetwo) may let you stay at max power after the shift, in which case you needn't rev any higher than 7300. That would be amazing, just in general  and also because of rotational inertia issues which may in fact lower the effective shift point even more. Bruce 

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12122013, 05:42 PM  #39  
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Bruce 

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12122013, 05:47 PM  #40  
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12122013, 08:32 PM  #42 
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12122013, 10:00 PM  #44  
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Drives: 2012 E92 M3
Join Date: Jul 2008
Location: Florida's Emerald Coast

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Long live the S65B40
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