Formula 1's governing body, the FIA, has announced a resolution to the sport's regulatory row over engine compression ratios, ...

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

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 ...

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