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

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

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 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 ...

A new twist has emerged in the Mercedes F1 compression ratio saga just under a week away from lights out in Melbourne. If you ...

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 ...

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 ...

Stock car racing engines are all about efficiency. That's because all the simple solutions for making power have either been maximized or eliminated by the rule book. You aren't allowed power adders ...

Mercedes team principal and CEO, Toto Wolff, admitted being confused at how power unit compression ratios became a topic of conversation over rumours his team had managed to utilise a potential grey ...