With every passing day the Mule provides opportunities beyond our original expectations. Since the 467ci engine belongs to HPP editor Tom DeMauro, it is at our beck and call. This affords HPP the ...

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.

Some rival teams have suggested Mercedes found a way for components to behave differently when they heat up during use. To ...

A political firestorm has been brewing in Formula 1 in recent weeks and months over whether engine manufacturers have found a ...

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

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

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

Steve Nielsen believes a late engine rules change for F1 2026 would set a dangerous ...

Formula 1s engine dispute will be resolved before the season-opening Australian Grand Prix after talks were held in Bahrain ...