Mercedes and Red Bull remain in the clear, as Italian reports on power unit cheating are rejected. An Italian newspaper reported on Friday that the FIA would decide to adjust the method for measuring ...

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

The compression ratio isn’t just a number: it’s one of the greatest determining factors in engine building. Compression ratio determines the type of fuel, how much boost, and has a significant ...

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

A twist in the compression ratio row ...

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

We all know the age-old maxim, "There's no replacement for displacement." It's the truth. That's why so many sanctioning bodies use displacement and compression rules to limit engine power. Of course, ...

Strictly defined, compression ratio is the total volume above the piston at bottom dead center (BDC), divided by the total volume above the piston at top dead center (TDC). First, let's look at the ...