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 ...

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 ...

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

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

A new engine test will be introduced after the seventh race of the 2026 Formula 1 season following a power-unit dispute over the winter; watch every session of the season-opening Australian Grand Prix ...

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 ...

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 ...

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

We put both engines on the dyno to see which made more horsepower and torque. It didn’t go as planned. Over the past year, we assembled two very mild small-blocks aimed at the typical hot-rodder ...