The compression ratio clarification wasn’t the only one issued by the FIA. For some time now, F1 has used ultrasonic fuel ...

You've probably heard racers talking about leakdown testing as a method of verifying engine condition. Being a hot rodder, you've probably performed a similar function by using a compression tester to ...

Nissan brought the first, and only, variable-compression engine to market. But its future doesn't look bright. Complexity in cars is a funny thing. It’s tempting to say that it’s all bad, that more is ...

One item of clothing you can never have enough of in your closet is a pair of leggings. But not all leggings are created equal—meaning your everyday pair of Amazon leggings might not cut it when it ...

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 ...

LWOS only recently reported on the likelihood of teams hiding their true performance during pre-season testing. In short, those who believe they have a significant advantage will try to maintain a low ...

A fundamental difference between gasoline and diesel engines is that a gasoline engine uses spark ignition while a diesel engine uses compression ignition. Before we delve deeper, let's understand how ...

Compared to the 1960s, the octane content of street-legal gasoline is dismal, to say the least. Today's so-called "high-octane premium" usually is rated at only 92 octane—when you can fine it at all.

On paper, Nissan's variable-compression turbocharged engine should have been pretty awesome. Since it could change its compression ratio on the fly, it promised the power of a bigger engine when you ...