This is the fastest, most realistic, best sounding gas engine in American Truck Simulator. The engine produces about 810 Crank HP and 770 Crank lb-ft. This engine will rev up to 9500 RPM, but you won't be doing that very long as it will drink the fuel tank. Pair this engine with the Runaway Demon transmission (included in this mod) and you can bring it up to 160 MPH before it can no longer accelerate. Don't expect to be going record speeds with a load. Remember, this is a gasoline engine. They don't have the low end torque like the Diesels do. The mod supports the following trucks All SCS trucks Dodge Challenger