As you may know, an engine's compression ratio is directly linked to its combustion efficiency. All else being equal, higher-compression engines tend to make more power while offering better fuel ...

From June 1, the FIA will impose tougher tests on F1 power units in an attempt to clamp down on the compression ratio saga, ...

Formula 1's governing body, the FIA, has announced a resolution to the sport's regulatory row over engine compression ratios, with a tweak to the regulations set for June 1 and a further change in ...

The FIA has introduced a revised power unit compression measurement process ahead of the F1 2026 season beginning. A revised version of the Technical Regulations details an expedited change that will ...

The FIA have announced changes to Formula 1's power unit regulations, most notably surrounding compression ratio, which have caused controversy over the winter. When the 2026 power unit regulations ...

Mercedes' Kimi Antonelli leads the cars of several rivals in F1 testing in Bahrain Mercedes' rivals have succeeded in securing a rule change following a pre-season technical row over engine ...

Zak Brown described the engine compression ratio as a “storm in tea cup” as his Mercedes-powered McLaren team prepares for the first race of the season. After a pre-season filled with discussions of ...

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