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, ...

The McLaren boss suggested the pre-season talk was much ado about nothing ahead of the season opener.

Motorsport Week Deputy Editor James Phillips discusses the forthcoming summertime Formula 1 rule tweak that could hurt ...

The FIA confirmed the update following discussions within the sport’s Power Unit Advisory Committee. Under the 2026 ...

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 volume of the engine cylinder when the piston is at the bottom of its ...

In December, it emerged that Mercedes had found a possible loophole in the rules that could lead to a performance advantage.

In a conventional piston engine, the compression ratio defines the relationship between the largest and smallest volume of a cylinder - when its piston is at bottom dead centre and top dead centre ...

Every engine has a specific compression ratio. The air-fuel mixture is compressed in the cylinder to create an ignition, the force of which depends on the compression ratio: the volume of the cylinder ...

A decision has been reached on the geometric compression ratios ...

Some rival teams have suggested Mercedes found a way for components to behave differently when they heat up during use. To address that, the compression ratio will be controlled in both hot and cold c ...

Does “the world’s first production-ready variable compression ratio engine” mean anything to you? For general automotive consumers, perhaps not a thing – at least, not yet. But that’s the big selling ...