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      06-26-2012, 01:31 AM   #36
swamp2
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Drives: E92 M3
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Quote:
Originally Posted by boostedM View Post
I just meant that power-to-weight makes less of a difference at a higher speed than it does from a lower speed or a dig. And the lower speeds and digs are also where torque becomes a factor. I may have worded it poorly
Gotcha. Keep in mind that power to weight still matters when accelerating at high speeds, it is just that ultimate top speed is purely limited by power and drag but not weight. Torque at the crank is also a meaningless quantity. Gear ratio must be involved to make a physically meaningful quantity. I think part of the reason folks believe torque matters at low speeds is sort of an artifact. The power can be higher at lower rpms at and right after launch in a typical high torque low power engine (say Vette vs. M3). Either way its still actually about power to weight . Cheers.
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