@f1archived on Instagram: "Cosworth’s Formula One engines became synonymous with high revving performance during the final years of the V8 era, reaching operational limits close to 20,000 rpm as manufacturers pursued maximum efficiency within strict engine displacement rules. Their CA series engines, introduced in 2006, were developed under the 2.4 L naturally aspirated regulation set and quickly became known for exceptional rotational speed made possible by pneumatic valve actuation, lightweigh

In Order to Test Its 1999 F1 V10, Cosworth Made A 1 Cylinder Engine That Hit 20,000 RPM | Carscoops

Cosworth Once Built A Single-Cylinder F1 Engine That Hit 20,000 RPM - Jalopnik