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 bosses are moving towards a rule change that would close a loophole rivals believe Mercedes have exploited in the ...

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.

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 ...

Mercedes could come out on the losing side of a critical vote regarding the engine regulations as other power manufacturers ...

A late rule change could turn the 2026 season on its head.

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 ...

While the FIA has signed off on Mercedes’ 2026 engine, rival teams aren’t happy with how the private test was handled at their factory. The debate around Mercedes’ 2026 engine, built for themselves ...

A single line in the technical regulations has sparked months of debate — here’s how the compression ratio saga unfolded and ...

Lewis Hamilton addressed rumors of a Mercedes compression ratio advantage after Day 1 of Bahrain testing, calling for a level ...

The organization's announcement could finally bring a huge contention point regarding the 2026 regulations to a close if the rule change goes ahead - and potentially hurt Mercedes.