How to Increase the torque of a pawnball when it enters a volume

So i am very Nooobish concerning blue print or any form of programming.

So as the question stated I am trying to increase the torque speed of a pawn ball when it enters a certain “Nitro” volume. So i would think that it is just some sort of direct communication. When the ball overlaps the volume the volume sends and updates the torque speed of the pawn-ball.

I am open to be teared anew one . so really bring it any advice would be appreciated.