Cummins’ Advanced Combat Engine

........... Cummins’ Advanced Combat Engine (ACE) sports a unique flat-four design along with super and twin-turbocharging which outputs 1,000-horsepower. Instead of having six or eight pistons in all separate cylinders, all in a row or even in the traditional “V” configuration, this 14.3-Liter engine has two pistons in each cylinder. These pistons work opposite each other sharing the same air/fuel mixture and resulting combustion. ..............