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 ...

"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 ...

Formula 1's five power unit manufacturers are set to vote on a proposed tweak to how engine compression ratios are measured, which could come into force over the summer break. The 2026 power unit ...

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 ...

Formula 1’s 2026 power-unit rules have already produced a political fight over compression-ratio interpretation before the ...

Formula 1’s new 2026 power units will debut at the Circuit de Catalunya in just over five weeks’ time, but questions over a grey area of the new regulations have already come to light. German outlet ...

Formula 1 is entering a new era in 2026 because of its regulation overhaul, which is arguably the biggest in the championship’s history with changes to both the chassis and power unit. An F1 chassis ...

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 ...

Regulations include test to stop teams exceeding 16:1, but checks happen at “ambient temperature” Formula One ’s governing body has reached a compromise with manufacturers that changes the way the ...

David Coulthard believes the FIA could have avoided Formula 1’s latest engine controversy with tighter wording in its regulations. Formula 1’s new era, for both chassis and power units, has begun with ...

LONDON (AP) — Formula One ’s governing body has reached a compromise with manufacturers that changes the way the compression ratio will be measured midway through this season and in the 2027 season.