The first Ferrari-designed engine was the V12 125, the work of Gioacchino Colombo and assistants Giuseppe Busso and Luigi Bazzi. The engine's name, and the car powered by it, the 125 S sports racer, were derived from the tiny by cylinders. The single overhead camshaft 60° V design had one cam on each cylinder bank, two valves per cylinder, and three 30DCF Weber carburetors. A 7.5:1 compression ratio yielded at 6800 rpm. First appearing May 11, 1947, the engine allowed the company to claim six victories in 14 races that year.