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Small displacement engines in sport compact cars can produce big horsepower when the engines are fitted with modified cylinder heads. It's not unusual for some of these tricked-up sport compact car engines to produce 300 hp in naturally aspirated form, and well over 450 hp with a turbocharger or supercharger. That's a lot of power from engines that typically produce around 160 hp in stock form. The secret to getting these kind of numbers is maximizing airflow. This articles cover some of the tricks that engine builders are doing to sport compact cylinder heads to realize big horsepower gains.
Click Here to read the full article on the Engine Builder magazine website.
