With the compression ratio loophole to be closed, Mercedes is set to lose performance – but Fred Vasseur doesn’t reckon it ...

From June 1, the FIA will impose tougher tests on F1 power units in an attempt to clamp down on the compression ratio saga, ...

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

Ahead of Wednesday’s expected PUAC vote and F1 Commission meeting, Audi’s Jonathan Wheatley says he has “absolute faith” that the FIA will do the right thing. Formula 1’s all-new technical era has ...

Hamilton fears Mercedes’ pace edge may have a controversial ...

The FIA have announced changes to Formula 1's power unit regulations, most notably surrounding compression ratio, which have caused controversy over the winter. When the 2026 power unit regulations ...

Formula 1 manufacturers have approved changes to the engine testing rules for 2026 following the compression ratio row that has lasted through the offseason. In December, it emerged that Mercedes had ...

Formula 1's governing body, the FIA, has announced a resolution to the sport's regulatory row over engine compression ratios, with a tweak to the regulations set for June 1 and a further change in ...

Assuming a properly tuned engine, there are three factors that contribute to poor streetability: long cam duration, high compression ratios, and excessive cruise rpm. Since cam selection is largely ...

“Too little compression will usually result in unmet performance expectations. On the high side [too much compression] carries greater risk in tuning and potential component failure if appropriately ...

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 ...