Formula 1 constructors and the FIA have reached a compromise to quell the compression ratio saga that has dominated the 2026 pre-season ...

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

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 ...

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

The compression ratio controversy will be addressed with a new test, but not until August.

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

The FIA has issued a statement on the status of the compression ratio ...

The FIA has published the new rule concerning the measurement of compression ratio of power units. Ahead of the upcoming Formula 1 season, Mercedes' reported compression ratio 'trick' was a much ...

Mercedes could come out on the losing side of a critical vote regarding the engine regulations as other power manufacturers ...

Mercedes team boss Toto Wolff is furious about the accusations concerning his team’s new engine for F1’s 2026 regulations, but it continues to cause distress over at Ferrari. As Formula 1 gears up for ...

At least 150hp of a Pro Stock engine is due to the use of ultra high compression ratios (CR) of 16:1--or more. 110 octane race fuels make this possible, but don't be fooled into thinking that the use ...