1. Torque rises as an engine speed drops from rated speed down to peak torque speed because less power is needed to maintain the lower speed. The power of an engine can be calculated by the formula:
Because the car is slowing down, less power is needed for acceleration as the car approaches peak torque speed. How fast a car accelerates depends on its torque. At the torque peak, there will be less power available for acceleration as the car is slowing down. The advantage of engines with a high torque rise is that they need less power for acceleration and can pull away easily. This is important when towing or carrying a heavy load (Modern). It also gives trucks e
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