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      12-13-2013, 04:31 PM   #86
Nautik
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Drives: 2009 AW M3 DCT
Join Date: May 2010
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Quote:
Originally Posted by KennyPowers View Post
I think the easiest way to do that is assume an rpm drop of about 3000-3500 on the m3 per shift (what I've seen in vids). And this drop is conservative.

Average the HP over that interval for both cars and see which one is higher.

The m3 is making 100 less whp at 5400 pm than 8400. This is not the case for the turbo cars.
As a previous poster mentioned the e92 M3's gearing vs the f80 will certainly play a factor in how that power is delivered. I think you may be underestimating how high that RPM is kept when shifting. Take a peek at this awesome lap by Junior in his e92 M3:



Even shifting in the lower gears (from redline) the RPMs don't drop below about 6500 RPM The higher gears don't seem to drop much below 7000 RPM on shifting.

So I think you would need to compare what the e92 delivers at 6500-8400 rpm vs what the f80 reportedly does at maybe 5500-7600 (we don't really know the gearing for the f80 so hard to say what RPM range it would be using at a track, they may do longer gears dropping it even further between shifts... dunno).

(assuming each cell on the X axis represents 1000 RPM? could be wrong)
At 5500 for the f80 and 6500rpm for the e92 the HP output appears pretty close to me. Pretty close at 6000 and 7000 as well.

Again, not saying the f80 won't be faster but I don't think it will be by as much as people are thinking based on the difference we saw between the e46 and the e92. I don't think power won't be the the big factor in the lap time difference we will see.

btw I'm just shooting the shit guys, nothing to get too excited about. Either people are gonna get the car or they won't. Personally, I'm not yet seeing enough value over what the e92 offers as a whole package. BMW may have outdone themselves with the e92. But they also didn't have to worry about CAFE then either.
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