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?

Formula 1 is entering a new era in 2026 because of its regulation overhaul, which is arguably the biggest in the championship ...

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

Mercedes' rivals succeed in securing a rule change following a pre-season technical row over engine performance.

Mercedes' rivals are pushing for a change to the F1 2026 rules ahead of the Australian Grand Prix over a potential engine ...

At first glance, the concept of engine compression is simple enough:It's the ratio of the volume of the combustion chamber and bore when thepiston is at bottom dead center (BDC) versus when it is at ...

The MCE-5 engine from MCE-5 Development in Lyon, France (www.mce-5.com), varies its compression ratio and uses a combined gear and rod-crank mechanism. Varying compression from 7:1 to 20:1 makes the ...

F1 ’s governing body, the FIA, and the sport’s manufacturers struck a deal over the engine controversy that threatened to overshadow the first race of the season in Australia. Melbourne will host the ...

Toto Wolff says Mercedes will not take legal action if the FIA adjusts the compression ratio checks for the 2026 F1 season.