'It's an evolution': Mack introduces its 2017 powertrain

‘It’s an evolution’: Mack introduces its 2017 powertrain

The 2017 Mack MP8 engine.
The 2017 Mack MP8 engine.

Mack Trucks has introduced its new powertrain line for model year 2017. The powertrain includes the company’s MP7 and MP8 engines, mDrive transmission, axles, and ClearTechOne exhaust aftertreatment system.

The 2017 versions of Mack’s 11-liter MP7 and 13-liter MP8 engines bring with them several new features. Both engines feature an updated wave piston design that raises the compression ratio and enables more complete combustion of fuel, while a common-rail fuel system more precisely injects fuel. Combined with a two-speed coolant pump, these features help increase MP7 fuel efficiency by between 2.5% and 5.1%, and MP8 fuel efficiency by between 2.5% and 5%, depending on the use of downspeeding.

“It’s not a new engine, it’s an evolution,” said Stu Russoli, Mack’s highway and powertrain products marketing manager. “We’re making improvements to get us to that next level.”

In mid-2017, the 445-HP MP8 engine will be available with turbo compounding. The extra power this system generates can result in an estimated 8-8.8% fuel economy improvement with as low as 900 RPM (with full torque). This is only available with Mack’s Super Econodyne downspeeding package.

The 2017 Mack MP8 will be available for order in April 2016, while the 2017 MP7 and MP10 engines will be available for order in July 2016. The Mack MP8 with turbo compounding will be available for order in October 2016.

Mack previously introduced its 13- and 14-speed mDrive transmissions, which will be available in August for Mack’s Pinnacle, Titan and Granite models.

These now include Mack Predictive Cruise, a unique system that learns the topography of the road. It uses GPS to match topography with the location, and can store information on up to 4,500 hills. It automatically uses this knowledge to save fuel—it anticipates the topography upcoming and adjusts the vehicles speed, torque and gear based on this information, resulting in up to 1% fuel economy savings.

Mack's mDrive transmission.
Mack’s mDrive transmission.

Mack also recently introduced ClearTechOne, its new exhaust aftertreatment system. This system combines the Diesel Particulate Filter (DPF), Selective Catalytic Reduction (SCR) technology and Diesel Exhaust Fluid (DEF) dosing system all into one unit. According to the company, they had four objectives during the development of ClearTechOne: Improve the efficiency of the unit, reduce and improve the weight of the unit, improve the chassis packaging, and reduce the overall service time that it takes to replace the filters.

“For more than 100 years, Mack has met the ever-changing needs of our customers’ applications with powerful, reliable engines,” said Mack President Dennis Slagle. “The 2017 evolution of Mack power carries on our tradition of durability, while offering more power and incredible fuel efficiency gains.”

You May Also Like

GenH2 joins California Hydrogen Business Council (CHBC) Trade Association

The membership-based trade association is comprised of over 140 companies, agencies, and individuals involved in the business of hydrogen.

GenH2 has joined the California Hydrogen Business Council (CHBC), a trade association and advocate for the hydrogen and fuel cell industry in the state. The membership-based trade association is comprised of over 140 companies, agencies and individuals involved in the business of hydrogen, according to the press release. CHBC’s membership includes businesses such as Chart Industries, BMW North America, Hyundai Motor America, Linde, Nikola Motor Company, and Trillium-A Love’s Company, among others.

Answering the biggest zero-emissions trucks questions

Volvo Trucks fields questions from what type of zero-emissions technology will work for certain applications and how it impact fleets.

Hyzon Motors announces new board chairman, vice chairman

Erik Anderson will serve as chairman, and Andrea Farace becomes vice chairman.

Volvo Trucks on its global zero-emissions trucks strategy

Hydrogen fuel cell development, electric truck technology and infrastructure rollout dominates the conversation.

Major fleet operators call on U.S. states to adopt zero-emissions regulations

The ACT rule will require significant growth in the production and sale of zero-emission trucks, vans, and other large commercial vehicles by 2035.


Other Posts

Heavy Duty Aftermarket Week to return in January

This year’s event will take place Jan. 22-25, 2024, at the Gaylord Texan Resort in Grapevine, Texas.

Equipment Leasing and Finance Association releases Monthly Leasing and Finance Index

The association notes that volume was down 9 percent from $10.9 billion in June.

ClearFlame Engine Technologies reports early results from ethanol-based engine pilot program

The pilots document ClearFlame’s upfitted enthanol-based engines.

Noregon updates JPRO Professional with increased off-highway support

“JPRO now alerts users when a firmware update is available for major component manufacturers like Cummins and Detroit.”