Ducati's Tiny V4 Engine Makes Crazy Horsepower

TL;DR

Ducati's 1-liter V4 produces 238.5hp at 15,750 RPM using desmodromic valves that mechanically close valves, eliminating float at extreme revs.

Key Points

• 1.Ducati's 1-liter V4 matches a 2-liter car engine's output. The Honda S2000's record-setting 2.0L made 240hp, yet Ducati extracts nearly identical power from just 1.0L — entirely naturally aspirated.
• 2.Desmodromic valves are the key to high-RPM reliability. Instead of springs (which cause valve float at high RPM), a dedicated cam lobe and rocker mechanically close each valve, allowing the engine to rev freely and safely.
• 3.The engine produces 238.5 horsepower at a screaming 15,750 RPM. This extraordinary specific output (over 200hp/liter) is achieved through a short piston stroke combined with the desmodromic valve system enabling extreme rev limits.