Another term which has come up a lot in the build-up to the 2026 season is ‘compression ratio’. This is the ratio between the ...

You might have heard about high compression ratios, but what exactly are they, and what kind of effect do they have on an ...

Formula 1's governing body, the FIA, has announced a resolution to the sport's regulatory row over engine compression ratios, ...

Changes to compression ratio tests will be introduced in the summer after a lot of focus on Mercedes' new power unit over pre ...

The loophole is concerned with the compression ratio which for 2026 has been reduced to 16:1 under the new regulations, down ...

The FIA have confirmed that new rules will be in place to prevent compression ratios going above 16:1 effectively closing a ...

The compression ratio battle is reaching crunch time.

The compression ratio controversy will be addressed with a new test, but not until August. Until then, Mercedes F1 can ruin its power unit as currently set up.

A revised test at 130°C aims to end off-season speculation — but could shift the debate into 2027.