Mack’s Latest Engine
Mack Trucks introduced the newest generation of the Econodyne engine family at Mid-America. The MP8 Econodyne+ aims at on-highway customers who want more muscle, and the 13-liter engine delivers 505 hp with 1860 lb ft. of torque when operating in either of the top two gears. It’s available in Pinnacle models.
When climbing a steep hill, engine speed drops to around peak torque output. When the driver applies 100% throttle and the rpm reach 1300, Mack’s intelligent torque-management strategy, called EconoBoost, kicks in, providing the driver with an additional 200 lb ft of torque, enabling the truck to remain in top gear longer until the hill is crested.
Drivers get more torque at lower engine speeds, allowing the vehicle to remain in higher gears for an extended period of time, resulting in greater fuel efficiency.
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