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Rotary Valve Engine built from scratch! It works

In this fascinating video, we journey through the intricate process of building a rotary valve engine from scratch. Watch as ...

Runs on Gas, Hydrogen, or CNG : Clean Two-Stroke Hits 8,000 RPM Easily

Meet Rev Force, a clean two-stroke with a rotary valve, supercharged intake, 220 hp, 221 g/kWh BSFC, and multifuel support ...