Additive manufacturing has enabled targeted thermal expansion to boost effective compression beyond the limit set for the ...

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 ...

From June 1, the FIA will impose tougher tests on F1 power units in an attempt to clamp down on the compression ratio saga, ...

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 ...

The direction of travel regarding the highly disputed Mercedes engine is becoming clearer. The other four manufacturers are pushing for the FIA to implement a correction to address the German team’s ...

Ferrari has finally given its take on Mercedes allegedly exploiting the compression ratio loophole in the 2026 F1 power unit and is backing the FIA to do the right thing. Even before a single lap has ...

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 ...

“Too little compression will usually result in unmet performance expectations. On the high side [too much compression] carries greater risk in tuning and potential component failure if appropriately ...