Quote:
Originally Posted by bmwzimmer
Look at the HP/Weight Ratios. I'm using estimated RWHP figures since crank numbers are misleading.... These are just estimates OK.
- E46 M3 280hp, 3415 lbs = 0.081991
- E92 335i 275hp, 3571 lbs = 0.07701
- E92 M3 360hp, 3648 lbs = 0.09868
- E92 Procede 376hp, 3571 lbs = 0.10529
- E60 M5 430hp, 4012 lbs = 0.10718
So get lighter and wider wheels & tires and you're done if you only want a fast street car. Get LSD and suspension if you track the car. In a straight line with this much power, it's not that neccessary to get the LSD since we are already seeing guys hit 1.6X 60' with just DR's. Brakes are pretty good as is. The 12 hour endurance race at Bathurst where the PRocede 335i won first and 4th place had stock brakes. Only significant mods were Procede, suspension, oil cooler
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You are quoting 25hp drivetrain loss for the 335i and over 50hp drivetrain loss for the E92 M3.
Why the big disparity?
Also, does the quote you provided for the 335i weight include 90% tank filling, 150lb driver, and 15lbs for luggage?