The crux of the matter lies in that the Formula 1 compression ratio is not measured by sensors during engine operation, but statically. The FIA simply compares the ratio in volume in the cylinder between the piston’s bottom and top dead centers, at ambient temperature.

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 ability to do things, such as our octane test, that would ...

Mercedes could come out on the losing side of a critical vote regarding the engine regulations as other power manufacturers chase a

Engine compression ratios have become a hot topic

Increasing an engine’s compression ratio is a proven way of unlocking extra horsepower, but there’s a point of diminishing returns. The team at Garage 54, the Russian mechanics who built a V16 using chainsaw engines, tested this theory by doubling the ...

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 like nitrous or a blower (lucky drag racers) and the easy ...

Apart from the very curious, not many people ask why diesel engines, compared to gasoline, run higher compression ratios. The argument is reasonably straightforward and starts with fuel characteristics – diesel is less volatile than gasoline, heavier ...