Meet ACE: A 1,000-Horsepower Cummins Diesel Engine With Turbochargers, a Supercharger, and Only 4 Cylinders!

This mighty little powerplant may never be available to us civilians.

Opposed piston engines are a military tradition

Diesel engine for the next generation U.S. army tanks.
Cummins/Achates Advanced Combat Engine (ACE) | Cummins

Opposed piston engines, just like their name would suggest, have two pistons in each cylinder. These pistons are connected to separate crankshafts and travel towards one another to create compression.

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This article originally appeared on MotorBiscuit on September 23, 2023