Why does power continue to increase after torque decreases?
Remember that the power is essentially the product of the RPM and the torque. When the torque peaks at a certain RPM and starts to drop off, the decrease is small and is not enough to offset the increasing RPM, so the overall product still increases. Eventually the decrease in torque becomes large enough that it outweighs the increase in RPM and we see the power start to drop. Because of this, the power peak will always be after the torque peak.
