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    General Motors Announces Two Plant Investments


    • A total of $906.7 million going to two of GM's Plants


    General Motors has announced new investments for two of their plants today.

     

    The Spring Hill manufacturing complex in Tennesse will see the largest of these two investments. A total of $788.7 million will go towards a new high-efficiency engine program and modernizing vehicle production. The investment will bring forth 792 new jobs and retaining 16. The Detroit News reports that GM is keeping quiet on what on the new engine program.

     

    “This investment will help GM and our workforce continue to put the customer at the center of everything we do, providing them with powertrain solutions to meet their changing needs. Today’s announcement reinforces our absolute faith in this facility, and our strong commitment to this community and the state of Tennessee,” said Arvin Jones, GM North America manufacturing manager in a statement.

     

    GM will also invest $118 million into the Bay City Powertrain plant in Michigan, creating 29 jobs and retaining 67. The investment will be used to support the new engine program in Spring Hill.

     

    Source: The Detroit News, General Motors

     

    Press Release is on Page 2



    GM Invests Additional $788.7 Million in Spring Hill Manufacturing

    • Brings total announced investments in Tennessee to $936.7 million in 2016 Bay City Powertrain operation to get $118 million to support engine project

     


    SPRING HILL, Tenn. — General Motors will invest $788.7 million for an all-new, high-efficiency engine program, as well as projects to modernize the vehicle programs at its Spring Hill Manufacturing Plant, creating 792 and retaining 16 jobs. At the same time, GM announced a $118 million investment at its Bay City Powertrain facility, creating 29 and retaining 67 jobs.

     

    Since 2010, GM has announced investments of more than $2 billion for the Spring Hill operations. This includes a $148-million investment announced in February to repurpose flexible machining and assembly equipment to build V8 engines.

     

    “This investment will help GM and our workforce continue to put the customer at the center of everything we do, providing them with powertrain solutions to meet their changing needs,” said Arvin Jones, GM North America manufacturing manager. “Today’s announcement reinforces our absolute faith in this facility, and our strong commitment to this community and the state of Tennessee.”

     

    According to Cindy Estrada, vice president and director of the UAW General Motors Department, this investment helps secure a bright future for its workforce.

     

    “UAW members at Spring Hill and Bay City have well-earned reputations for quality work and craftsmanship,” said Estrada. “Since the 2015 collective bargaining agreement, GM has invested more than $1.7 billion and UAW-GM members, their families and their communities will all benefit for years to come.”

     

    Construction will begin in May and will last several years.

     

    “Spring Hill and its employees have earned a reputation for producing award-winning engines,” said UAW Local 1853 Chairman Mike Herron. “GM recognizes this and we’re thankful they are investing further in the future of this facility and this community.”

     

    Numerous local, state and federal officials attended the announcement to show their support of the investment in capital and employment, including Tennessee Gov. Bill Haslam.

     

    “We want to congratulate and thank GM on another substantial investment in Spring Hill and its workforce,” Haslam said. “Tennessee is number one in the Southeast for job growth over the last year, and we continue to attract investment from companies that can choose to do business anywhere in the world. It is exciting for our entire state to see long-time partners like GM continue to invest in Tennessee and create high quality jobs here.”

     

    The Tennessee Valley Authority worked with government and company representatives in helping secure this investment announcement.

     

    ”TVA understands the importance of reliable, affordable electricity to General Motors and the entire automotive industry. We are proud to be a partner in this announcement, which will lead to more jobs and investment in the region’s economy,” TVA President and CEO Bill Johnson said.

     

    Spring Hill Manufacturing opened in 1990 and produced Saturn vehicles until March 2007. It produced the Chevrolet Traverse from September 2008 until November 2009, and the Chevrolet Equinox from September 2012 until October 2015. Currently, the site operations consist of a flexible vehicle assembly plant producing the Cadillac XT5 and the GMC Acadia, an engine plant making 4-cylinder engines, a stamping plant, a body shop, a paint shop and two polymer injection molding operations. Engines and stampings are supplied to various GM assembly plants globally. The complex will begin building small block V8 engines by the end of 2016.

     

    Bay City Powertrain produces engine components that are used in Chevrolet, Buick, GMC and Cadillac vehicles. The plant opened in 1892 as National Cycle Manufacturing Company and produced a new bicycle to replace old high-wheeled types. In 1916, William Durant and Louis Chevrolet bought the plant and the plant was added to the General Motors portfolio in 1918. With this investment, GM has invested or will invest $249.4 million in Bay City Powertrain since 2010.

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    I am hoping this allows GM to finally scale out the VOLT powertrain for use in far more auto's. The VOLT powertrain should be in everything especially in trucks and SUVs. This would greatly bump up GM MPG average and greatly reduce the green house gas production.

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    • By William Maley
      Over the weekend, General Motors published and then deleted the power figures for the new 6.6L Duramax Diesel V8 that would be appearing in the 2017 Chevrolet Silverado HD and GMC Sierra HD. Today at the Texas State Fair, GM revealed everything about this new engine.
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      Press Release is on Page 2


      DALLAS — Chevrolet today announced the redesigned Duramax 6.6L V-8 turbo-diesel offered on the 2017 Silverado HD. This next-generation redesign offers more horsepower and torque than ever — an SAE-certified 445 horsepower (332 kW) and 910 lb.-ft. (1,234 Nm) — to enable easier, more confident hauling and trailering.
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      “With nearly 2 million sold over the past 15 years, customers have forged a bond with the Duramax diesel based on trust and capability,” said Dan Nicholson, vice president, Global Propulsion Systems. “The new Duramax takes those traits to higher levels.”
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      The intake design is another example of the advanced integration included in the 2017 Silverado HD that makes it over-the-road capable.   
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      There’s also an integrated oil cooler with 50 percent greater capacity than the current engine’s, ensuring more consistent temperatures at higher engine loads.
      Segment firsts
      Re-melt piston bowl rim Venturi Jet Drain Oil Separator Closed-loop glow plug temperature control Stronger pistons with remelt
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      The connecting rods are stronger, too, and incorporate a new 45-degree split-angle design to allow the larger-diameter rod bearings to pass through the cylinder bores during engine assembly. They’re forged and sintered with a durable powdered metal alloy, with a fractured-cap design enabling more precise cap-to-rod fitment. 
      A new, stronger cast-aluminum piston design tops off the rotating assembly. It features a taller crown area and a remelted combustion bowl rim for greater strength. Remelting is an additional manufacturing process for aluminum pistons in which the bowl rim area is reheated after casting and pre-machining, creating a much finer and more consistent metal grain structure that greatly enhances thermal fatigue properties.
      Additionally, the Duramax’s pistons don’t use pin bushings, reducing reciprocating weight to help the engine rev quicker and respond faster to throttle changes.
      Lightweight cylinder heads, solenoid injectors
      The redesigned engine retains the Duramax’s signature first-in-class aluminum cylinder head design, with six head bolts per cylinder and four valves per cylinder. The aluminum construction helps reduce the engine’s overall weight, while the six-bolt design provides exceptional head-clamping strength — a must in a high-compression, turbocharged application.
      A new aluminum head casting uses a new double-layer water core design that separates and arranges water cores in layers to create a stiffer head structure with more precise coolant flow control. The heads’ airflow passages are also heavily revised to enhance airflow, contributing to the engine’s increased horsepower and torque.
      The Duramax employs a common-rail direct injection fuel system with new high-capability solenoid-type injectors. High fuel pressure of 29,000 psi (2,000 bar) promotes excellent fuel atomization for a cleaner burn that promotes reduced particulate emissions. The new injectors also support up to seven fuel delivery events per combustion event, contributing to lower noise, greater efficiency and lower emissions. Technology advancements enable less-complex solenoid injectors to deliver comparable performance to piezo-type injectors.
      Electronically controlled, variable-geometry turbocharging system
      A new electronically controlled, variable-vane turbocharger advances the Duramax’s legacy of variable-geometry boosting. Compared to the current engine, the system produces higher maximum boost pressure — 28 psi (195 kPa) — to help the engine make more power, and revisions to enhance the capability of the exhaust-brake system.
      Along with a new camshaft profile and improved cylinder head design, the Duramax’s new variable-vane turbocharger enables the engine to deliver more power with lower exhaust emissions. It uses a more advanced variable-vane mechanism, allowing a 104-degree F (40 C) increase in exhaust temperature capability. The self-contained mechanism decouples movement from the turbine housing, allowing operation at higher temperature. That enables the engine to achieve higher power at lower cylinder pressure. Additionally, it has lower internal leakage, allowing more exhaust energy to be captured during exhaust braking.
      The integrated exhaust brake system makes towing less stressful by creating added backpressure in the exhaust, resulting in negative torque during deceleration and downhill driving, enhancing driver control and prolonging brake pad life.
      Venturi Jet Drain Oil Separator
      A new Venturi Jet Drain Oil Separator employed with the Duramax 6.6L is the first of its type in the segment and is designed to ensure oil control in sustained full-load operation. The totally sealed system collects the fine mist of oil entrained in the blow-by gas and uses a small portion of the boosted air generated by the turbocharger to pump the collected oil back to the engine oil sump for re-use by the engine. Less sophisticated systems are not able to return this oil during full-load operation, which can result in oil carryover into the cylinders during combustion.
      Cold Start System
      The new Duramax also provides outstanding cold-weather performance, with microprocessor-controlled glow plugs capable of gas-engine-like starting performance in fewer than 3 seconds in temperatures as low as -20 degrees F (-29 C) without a block heater. The system is enhanced with ceramic glow plugs and automatic temperature compensation — a first-in-class feature providing improved robustness and capability. The automatic temperature compensation assesses and adjusts the current to each glow plug for every use, providing optimal temperature for cold start performance and durability.     
      Electronic throttle valve and cooled EGR
      Unlike a gasoline engine, a diesel engine doesn’t necessarily require a throttle control system. The Duramax 6.6L employs an electronic throttle valve to regulate intake manifold pressure in order to increase exhaust gas recirculation (EGR) rates. It also contributes to smoother engine shutdown.
      Additionally, a cooled exhaust gas recirculation (EGR) system enhances performance and helps reduce emissions by diverting some of the engine-out exhaust gas and mixing it back into the fresh intake air stream, which is fed through the cylinder head for combustion. This lowers combustion temperatures, improving emissions performance by reducing NOx formation.
      The exhaust is cooled in a unique heat exchanger before it’s fed into the intake stream through a patented EGR mixing device, further improving emissions and performance capability. An integrated bypass allows non-cooled exhaust gas to be fed back into the system to help the engine more quickly achieve optimal operating temperature when cold.
      B20 Biodiesel Capability
      The new Duramax 6.6L is capable of running on B20 biodiesel, a fuel composed of 20 percent biodiesel and 80 percent conventional diesel. B20 helps lower carbon dioxide emissions and lessens dependence on petroleum. It is a domestically produced, renewable fuel made primarily of plant matter — mostly soybean oil.
      Manufacturing
      The new Duramax 6.6L turbo-diesel engine is produced with locally and globally sourced parts at the DMAX Ltd. (GM’s joint venture with Isuzu) manufacturing facility in Moraine, Ohio.
      Allison 1000 Automatic Transmission
      The proven Allison 1000 six-speed automatic transmission is matched with the new Duramax 6.6L. A number of refinements have been made to accommodate the engine’s higher torque capacity, including a new torque converter.
      The Allison 1000’s technologically advanced control features, such as driver shift control with manual shift feature and a patented elevated idle mode cab warm-up feature, haven’t changed. Also, the Tow/Haul mode reduces shift cycling for better control and improved cooling when towing or hauling heavy loads.
      There’s also a smart diesel exhaust brake feature that enhances control when descending steep grades.
    • By William Maley
      The seemingly never-ending diesel heavy-duty truck war is back in force with Ford announcing the power figures for the F-Series Super Duty back in the summer. We were wondering when either FCA or GM would strike back. Well GM did this over the weekend by accidently and then subsequently deleting the figures for the next-generation Duramax V8 diesel.
      Truck Trend got screenshots of GM Powertrain's website where the details of the L5P 6.6L Duramax turbodiesel are there to see: 445 horsepower and 910 pound-feet of torque. Compared the 6.7L PowerStoke V8 found in the 2017 F-Series Super Duty, the updated Duramax produces 5 more horsepower but is slight behind in torque (15 down from the PowerStroke's 925 pound-feet).
      We know for sure that the new Duramax will debut a new air intake system (you can see the new hood scoop in the picture above). More air is a good thing as it means better cooling and more power.
      The Texas State Fair is this week and it has become a showplace for the various truck manufacturers to make big announcements. We wouldn't be shocked if General Motors debuts the new Duramax there.
      Source: Truck Trend

      View full article
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