 The F4 engine is a liquid cooled inline four cylinder four-stroke set across the frame with two overhead camshafts (DOHC), 16 'radial' valves, electronic multipoint fuel injection, and induction discharge electronic ignition having engine displacements of , , and .The engine was derived from the 1990–1992 Ferrari Formula One engine.Early in the design process Ferrari engineers assisted in the development of the engine.