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 ...

Formula 1 teams are testing in Bahrain this week, but a storm is brewing in the background that might turn the season on its head. A rule change could be introduced to rein in the Mercedes power units ...

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

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

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 ...

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

According to ESPN, the FIA will introduce stricter engine compression tests from June 2026, requiring Formula 1 teams to meet ...

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

A new engine test will be introduced after the seventh race of the 2026 Formula 1 season following a power-unit dispute over ...

Some rival teams have suggested Mercedes found a way for components to behave differently when they heat up during use. To address that, the compression ratio will be controlled in both hot and cold c ...

The FIA have proposed a mid-season rule change to its engine regulations with a vote set to take place before the Australian Grand Prix. The build-up to the new 2026 season, which are the biggest in ...