11-12-2011, 05:08 PM | #1 |
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Performance predictions - F80 M3
As pretty much everyone here knows, Car and Driver just recently tested the F10 M5 and obtained the following results:
0-60: 3.7 seconds (I assume with 1ft rollout) 1/4 mile: 12.0 @ 122 mph That being said, assuming an F80 M3 with 450-465 hp and 3600-3650lb weight, what are everyone's predictions in terms of acceleration (I believe the slalom/skidpad will be better, with slightly less weight and wider track than E90)? I'm thinking, since C&D got 3.9 seconds 0-60 and 12.4 quarter mile @114 with the ZCP E92, the F80 should be at least slightly faster - however, we also know that BMW in the past did not want the M3 to be quite as fast as an M5 in straight-line acceleration. Perhaps: 0-60: 3.8 seconds (with 1ft rollout) 1/4 mile: 12.1-12.2 seconds @119-120 mph? |
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11-14-2011, 01:09 AM | #2 |
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I'm guessing the coupe @ 480hp with 3500# of weight. Sedan @ 460hp and same weight.
0-60: 4 seconds and 1/4 mile: 12.0 with sedan two tenth of a sec slower than the coupe in both category. I'm guessing by the time the M3/M4's out. BMW will tweak the engine for the M5 a bit and make it 600hp. |
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11-14-2011, 02:12 AM | #3 |
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IŽam guessing the sedan @ 460-470hp from an 3.3-3.5ltr.V6 BiTurbo with S63 Turbosystem plus probably the patented eTurbo-System and with an weight of around 3300.
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12-07-2011, 01:02 AM | #4 |
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From my original post on this topic about 1 year ago...
If you want the gory details and justifications for the numbers have a look at my original post here.
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12-08-2011, 03:24 AM | #6 |
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The E92 M3 has already been tested (one of the major car rags) at under 4 seconds to 60. That being said that time is a bit of an outlier type of time. Either way, the new car WILL be that fast, pretty well guaranteed. However, 0-60 really is not the best measure of a cars acceleration or power. It is a traction contest. 0-100, 60-130 or its 1/4 mi trap speed is much more telling and important.
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12-08-2011, 03:28 AM | #7 | |
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Today's game is about weight reduction and fuel economy. Time will tell. Let the wait begin. |
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12-09-2011, 07:27 AM | #8 | ||
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Take the F10 M5 - it has "only" 60 more peak hp than E60 M5 - which doesn't seem like that much. You then take the 200 lb greater weight of the F10, which would seem to further diminish the 60 hp advantage - therefore - the power to weight ratio of the F10 v the E 60 is not much better at all. But nevertheless, the performance advantage is far more significant that the power to weight figures by themselves would otherwise suggest. |
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12-09-2011, 07:17 PM | #9 | |
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Certainly average power being higher is better. There is no doubt about that, it is basic physics. However, the importance of the shape of the F10 M5's power curve vs. the E60 M5's, from a practical perspective is basically in the noise. In short peak power is still by far the most important factor. CarTest simulations (physics based acceleration simulation software) provide the following predictions for the E60 and F10 M5 quarter mile results E60: 12.2 s @ 118 mph F10: 11.9 s @ 119 mph Some of the fastest tested times correpsond nicely with those. These are not supposed to be the best times found nor a detailed statistical average just good solid times from various tests, magazine and private. E60 M5: 12.3 s @ 118 mph F10 M5: 12.0 s @ 122 mph Much like the case of the 335i I suspect the F10 M5 might be a tad underrated given the 122 mph achievement. Now if we "manufacture" a hypothetical F10 M5 with the exact same peak power but a power curve totally unlike the actual "table top" flat curve above 6000 rpm but like the E60 M5 (or E9X M3) we find this car will run about: 12.0 s @ 118 mph This is a mere 0.1 second and 1 mph better than the results simulated with the actual shape of the power curve of the production car. So again, in short, the power and torque curve shapes matter but peak power to weight reigns supreme as the most important indicator of performance.
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12-19-2011, 06:35 PM | #11 |
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0-60 in 3.7?
Keep dreaming guys The fact that R&T got the E92 to hit 3.9 is irrelevant; they had a perfect launch, strong motor, perfect conditions (weather, elevation, tires, humidity, etc.). New M3 will be advertised as a "4.2-4.3" 0-60mph car, with mags hitting 3.8 or so, maybe 3.9 again, one lucky magazine might get it to 3.7, again, with perfect conditions and settings. Current M is advertised as a 4.7[4.5] 0-60 car (latter being DCT); marketing alone says they won't drop down half a second! They'll cannibalize their own brand. If BMW wants to steal C63 AMG (w/ Performance Package) sales, they should advertise this car as a 0-60 in 4.2 car. And if they have a brain they should offer a Performance Package for extra HP/TQ like AMG does. Everyone would buy it. Car will also be heavier than the current one.
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12-20-2011, 09:19 AM | #13 | |
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Edit: perhaps I'm misunderstanding, what is "NOS"?
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12-23-2011, 01:25 AM | #15 | |
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Who cares what time BMW will publish, their times are and always have been supremely conservative. Last but not least the new car has a VERY good shot at being lighter than the existing car. Some of the educated guesses are in this post but other more detailed comparisons and justifications for this conclusion are scattered around in various other posts.
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12-23-2011, 01:27 AM | #16 |
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Agree. That time simply is not justified by the cars likely power and weight. Now that being said if its production tires are more or less track equivalent rubber then perhaps, but even then it would be a great time.
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12-24-2011, 08:51 AM | #21 |
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12-24-2011, 03:36 PM | #22 |
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M3
My guess would be 450 horsepower in a triple turbo charged inline 6. Basically, taking the n55 engine and pimping it out.
Result after less weight and more horse power: 0 to 60 - 3.9 1/4 mile - 12.0 I hope BMW continues with the double clutch option. MPG - 20 city 25 hwy It will probably sit at 1500 rpm at 80mph. |
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