Quote:
Originally Posted by BI2016
I think it would be pretty easy to work out the peak horsepower for the new car if they leak a peak rpm...considering they've already said peak torque is around 395lb/ft.... and we could probably assume the power curve will pretty much match the F10 M5... I just chucked the numbers into excel... the numbers in bold suggest are the suggested outputs assuming an M5-esque curve... It seems pretty obvious bmw would have purposely detuned top end if output is much below 450bhp...and M cars are meant to be all about top end power...so Id imagine they dont want to destroy their brand image too much. Sorry for the bad dodgy excel format
RPM 290 340 350 360 370 380 390 400 Lb/ft
1000 55 65 67 69 70 72 74 76
1500 83 97 100 103 106 109 111 114
2000 110 129 133 137 141 145 149 152
2500 138 162 167 171 176 181 186 190
3000 166 194 200 206 211 217 223 228
3500 193 227 233 240 247 253 260 267
4000 221 259 267 274 282 289 297 305
4500 248 291 300 308 317 326 334 343
5000 276 324 333 343 352 362 371 381
5500 304 356 367 377 387 398 408 419
6000 331 388 400 411 423 434 446 457
6500 359 421 433 446 458 470 483 495
7000 387 453 466 480 493 506 520 533
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A good more detailed spreadsheet analysis adding to the same initial point by NISFAN above. The RUMORED specs of 395 ft lb and around the same hp as existing E9X M3 is entirely incompatible with a 7500 rpm or even 7000 (lower than F10 M5) redline. The numbers provided in the post are completely fishy, even though they claim to come from a reliable "inside source". The only possibilities are underrating (more actual power), less torque, a way lower redline or some combination of those.