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      11-30-2011, 06:57 PM   #18
Erhan's Avatar

Drives: Cooper S
Join Date: Oct 2008
Location: Seattle

iTrader: (0)

Originally Posted by swamp2 View Post
Guys, the simplest way to think about this is when an engine has a very linear power curve like the M3 the power you are producing is directly proportional to the rpm. Shift always at 8k instead of 8400 and you are only using

8000/8400 x 414 hp = 394 hp

This is a very rough calculation but shows even an 8k shift is leaving about 20 hp off the table! Not a huge difference (5%) but if you are counting 10th's or simply want to be insured you are moving out as best a possible you have to shift at redline.
Not only that, after every shift you'll end up at a higher rev if shifted at 8400rpm compared to 8000rpm hence more power again.
2011 MINI Cooper S
previous cars: E92 M3, Z4MC, Z4 Roadster, E36 328 Sedan