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Autosport
Autosport

F1 engine manufacturers and FIA approve tweaks to compression ratio checks

Formula 1's governing body the FIA says the series' power unit manufacturers have unanimously approved changes to how engine compression ratios are measured, with revisions coming as early as 1 June.

The compression ratio of the V6 combustion engines, which measures how much the air-fuel mixture inside a cylinder can be compressed, has been reduced to 16:1 for this generation of power units - partly to help make building engines more accessible to newcomers like Audi.

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