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

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

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

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

Low- And High-Compression Fuel Economy Engines: The Techniques Are About The Same, But The Approach To Each Is Somewhat Different. A.Most stock cylinder heads have factory-cut undercuts of the type ...

In December, it emerged that Mercedes had found a possible loophole in the rules that could lead to a performance advantage.

A.Here's a pressure-volume diagram for a combustion engine. Although rough, it is an approximation of the so-called air-standard cycle. '' Point (a) is at atmospheric pressure, after which the air is ...

Technical manoeuvring to push regulatory boundaries for the slightest performance edge without actually breaking any rules is a familiar pattern in all forms of motorsport. Engineers treat the rule ...

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

An unconfirmed theory about how Mercedes and Red Bull have circumvented F1’s power unit compression ratio regulations has ...

The FIA has confirmed that all five engine manufacturers have agreed to a change to the engine regulations relating to compression ratios effective from 1 June.