If there's one question that's forever on the lips of car enthusiasts, it's how much horsepower an engine makes. Answering that question is deceptively complicated, however, because of what the term ...

As you may know, an engine's compression ratio is directly linked to its combustion efficiency. All else being equal, higher-compression engines tend to make more power while offering better fuel ...

SAKHIR, Bahrain — Formula 1’s engine manufacturers will vote next week on a mid-season rule change addressing the compression ratio row that has centered on Mercedes. Over the winter, it emerged that ...

We may receive a commission on purchases made from links. Engines have changed over the past century, with upgrades and different ways of operating. We've gone from strong, low-compression cast-iron ...

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 ...

Everyone seems to have their own theory for engine break-in procedures these days, but sometimes sticking to the old-fashioned way of doing things is the best. "Getting a new engine is a wonderful ...