Mack updates MP 8HE engine

by Today's Trucking

The newest 13-liter Mack MP 8HE engine will offer 3% better fuel economy than the current model.

A Mack Anthem spec’d with extended chassis fairings and a Mack HE+ efficiency package, which includes the updated engine, will offer 13% better fuel efficiency than a baseline Mack Anthem.

Waste energy from the engine exhaust is captured using Mack Energy Recovery Technology, which converts it back into mechanical energy in the form of additional torque through the crankshaft.

Mack MP8HE engine
(Photo: Mack Trucks)

An updated wave piston design helps to evenly distribute air and fuel in the cylinder to burn fuel more completely and consistently than traditional piston designs. Additional efficiency gains came by increasing the MP8HE’s compression ratio from 17:1 to 18:1 and adding an improved turbocharger and wastegate.

The Mack HE+ efficiency package combines the MP8HE engine, the Mack mDriver automated manual transmission, Mack Predictive Cruise and aerodynamic enhancements.

The next-generation Mack MP8HE engine comes in 415 and 445 horsepower ratings with a respective 1,760 and 1,860 lb.-ft. of torque.

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