Ford And Cosworth Created The Angriest 9,000 RPM NA Four-Cylinder Engine Ever Made

High revs, raw sound, no driver aids: Discover why the Cosworth BDA earned its reputation as perhaps the "angriest" engine ever built.

Car Talk, Autos Dec 22, 2025 0 21 Add to Reading List

Ford And Cosworth Created The Angriest 9,000 RPM NA Four-Cylinder Engine Ever Made

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Before the sound fully registers, you feel it – a high-frequency vibration in the air, growing rapidly into a raw, mechanical scream that seems to tear at the very fabric of the atmosphere. It is the unmistakable sound of a Ford Escort rally car at full chat, powered by the legendary Cosworth BDA engine. For decades, this four-cylinder engine has captivated motorsport fans, revered not just for its success but for its intense, aggressive character. It is often described simply as "angry." But how does a collection of precisely machined metal components earn such an emotional label?

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