How much does engine horsepower matter in a tractor? What exactly does the engine do besides spin the transmissions hydraulic pumps? Isn't the transmission the thing that's putting out all of the actual power, driven by the engine?
Like...if you take two 20hp engines and hook one up to a powerful transmission, say a TuffTorq K90, and the other to a K46, will they put out the same power to the wheels? Or will the K90 give you more wheel hp? How does this work and why?