A loophole in Formula 1’s new technical regulations offers a way around the 16:1 compression ratio cap, introducing ...

A technical loophole involving thermal expansion has triggered accusations, secret letters to the FIA, and a war of words ...

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 ...

An engine loophole in the 2026 regulations has been the subject of recent meetings ...

Christian Horner says Mercedes and Red Bull are pushing F1 2026 power unit limits, dismissing claims of “cheating like ...

Rival manufacturers are working on plans to get the compression ratio checks adjusted ahead of the F1 season. Any change ...

Tucker Ryals;Gainesville, FL: I'd like to pose a question regarding an article Jeff Smith wrote on the Chevy 5.3L motor "Bolt On a Cam and Heads and Add 120+ HP" (April '08). I read the article with ...

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 ...

“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 ...

A gasoline piston engine that can dynamically change its compression ratio —that is, the amount by which the piston squeezes the fuel-air mixture in the cylinder—has long been a holy grail of engine ...

Forget variable length intakes and variable valve timing, Infiniti is going all the way and introducing variable cylinder compression ratios. The new VC-T turbo engine automatically adjusts between a ...