You've probably heard racers talking about leakdown testing as a method of verifying engine condition. Being a hot rodder, you've probably performed a similar function by using a compression tester to ...

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

FIA announces updated 2026 regulations, including new engine testing after Mercedes PU scrutiny, plus a series of rule tweaks ahead of the season.

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 ...

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

The FIA has updated the 2026 F1 engine rules, changing how compression ratios are measured to prevent loopholes.

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 ...

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

Formula One’s governing body, the FIA, has reached a compromise with power unit manufacturers to tighten how engine ...

Increasing an engine’s compression ratio is a proven way of unlocking extra horsepower, but there’s a point of diminishing returns. The team at Garage 54, the Russian mechanics who built a V16 using ...

Hamilton addresses rumors of Mercedes’ technical advantage after day one of preseason Bahrain testing. Concerns raised about Mercedes’ fuel loads, engine modes, and possible compression ratio edge.