Lets build a new engine.

Right on with the Roots boost principle YR. That big mechanical air pump is operating at maximum efficiency right off of idle and the engine is getting extra time for maximum cylinder fill at low. It's like a fan as string cutting machine, the faster the fan spins, the smaller the pieces it cuts off. It's just an outright violent level of torque production that makes you wonder if you're about to drive over of the crankshaft.