List: Top 25 Power-Dense Powerplants

Power density may not be in the lexicon of the average gearhead, but this idea is arguably as important as power-to-weight ratios and zero-to-sixty times. Power density, also known as specific engine output, is the amount of power produced by each liter the engine displaces. It is expressed in terms of horsepower per liter (hp/L). Automakers, especially those of performance vehicles, strive to hit the magical 100 horsepower-per-liter mark, which is where the recognized range of serious sports cars start.

By Peter Nelson | August 10, 2010


The Guide to Road Racing: Winding Road Magazine's ultimate guide to getting your start in racing.

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