You might have heard about high compression ratios, but what exactly are they, and what kind of effect do they have on an engine's fuel efficiency?

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

A political firestorm has been brewing in Formula 1 in recent weeks and months over whether engine manufacturers have found a loophole in the new 2026 technical regulations. Mercedes and Red Bull may ...

Increasing an engine’s compression ratio is a proven way of unlocking extra horsepower, but there’s a point of diminishing returns. The team at Garage 54, the Russian mechanics who built a V16 using ...

Rivals push the sport’s governing body into a midseason tweak as a dispute over compression ratios spills from the garage to ...

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

We all know the age-old maxim, "There's no replacement for displacement." It's the truth. That's why so many sanctioning bodies use displacement and compression rules to limit engine power. Of course, ...

Even before the 2026 calendar year has begun, the first controversy under F1's new ruleset has already surfaced. It concerns the engine regulations, and more specifically the compression ratio of the ...

Formula 1's five power unit manufacturers are set to vote on a proposed tweak to how engine compression ratios are measured, ...

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