We may receive a commission on purchases made from links. While browsing auto repair and maintenance tools at your local parts store, you've likely come across compression testers like the Orion Motor ...

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 ...

The crux of the matter lies in that the Formula 1 compression ratio is not measured by sensors during engine operation, but statically. The FIA simply compares the ratio in volume in the cylinder ...

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

A lot of talk is taking place behind-the-scenes with concerns that Mercedes and Red Bull have found a loophole in the FIA regulations.

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 ...

Formula 1’s new 2026 power units will debut at the Circuit de Catalunya in just over five weeks’ time, but questions over a grey area of the new regulations have already come to light. German outlet ...

The compression ratio controversy will be addressed with a new test, but not until August.

F1 teams expect to get clarity on compression ratio saga very soon ...

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

Formula One's governing body, the FIA has initiated a significant regulatory process that could reshape how Formula 1 power units are evaluated from the 2026 season onward.