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Originally Posted by insite
redline is usually best. forget torque; you want to shift just after peak POWER, thus allowing revs to fall at or near the peak POWER range.
torque is nothing without motion (work). you can apply torque and never actually move the car (zero work). power describes the rate at which work can be performed (i.e. how quickly can you move a mass of n pounds a distance of x feet). when your car is at peak power, it is performing work at its fastest capable rate.
this is why jim986's real life experience shows him that best acceleration runs occur when you ignore the torque peak and use the power that the almighty RPM helps us generate.
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It doesn't sound like you're quite getting it either. Power and toque are directly related, you can't neglect one or the other. The statement you've made is not accurate in that the calculations of acceleration use torque becuase it's units are more directly converted to the units of acceleration. Make no mistake, it's TORQUE that's commonly used in the calculations for acceleration.