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    William Maley

    Chevrolet's Camaro Showing For SEMA Are All About the Dragstrip

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      Chevrolet has two drag Camaros on show for SEMA


    Once again, Chevrolet is heading off to SEMA to show off the latest COPO Camaro. But the COPO won't be the only Camaro dragster on display as Chevrolet will have a test vehicle showing off the Camaro SS Drag Race Development Program.

    COPO Camaro
    We'll begin with the COPO Camaro. This model is designed for NHRA’s Stock Eliminator classes and features a racing chassis and suspension bits to handle drag racing duties. COPO models feature a unique solid rear axle system, a lightweight, adjustable coil-over strut front suspension, manual four-wheel disc brakes, a custom manual steering rack, and a fuel cell system. There will be a range of naturally aspirated and supercharged V8 engines that will come paired with a three-speed automatic transmission.

    If you're interested in buying a COPO Camaro, you'll need to register at Chevrolet.com/COPO by December 15th to get the chance to be picked to purchase it. 

    The COPO Camaro on display at SEMA is serial number 01 of 69. It features a supercharged 350 V8, custom racing wheels, and a unique version of Hyper Blue Metallic exterior color. Chevrolet will put this model up for auction at Barrett-Jackson Scottsdale in January with proceeds going to United Way.

    Camaro SS Drag Race Development test vehicle
    Chevrolet describes the SS Drag Race Development test vehicles as a way "to mimic the typical stair-step enhancements many amateur racers make with their production Camaro SS models". Enginners started with a standard Camaro SS with an eight-speed automatic and began swapping parts. The test vehicle boasts cam-and-heads package to help boost power of the LT1 V8 to 530 (can be increased 600 with a power adder), higher-stall torque converter, and a set of drag slicks.

    “The Camaro SS Drag Race Development concept is a work in progress, but Chevrolet is serious about developing parts and packages tailored for drag racers. As we continue to develop the car, we’ll be listening intently to customers’ reactions to it and what they believe would help them the most on the drag strip. This is only the beginning,” 

    The results of this work in progress are impressive with the test car posting best numbers of,

    • 1.425 seconds for the 60-feet time
    • 6.764 seconds at 100.85 mph for the eighth-mile
    • 10.685 seconds at 125.73 mph for the quarter-mile

    Expect to see various parts coming from the Camaro SS Drag Race Development test vehicle in the near future.

    Source: Chevrolet
    Press Release is on Page 2


    Camaro Conquers the Quarter-Mile

    • Drag Race Development Program, new COPO Camaro advance drag-racing legacy

    PAHRUMP, Nev. – For 50 years, the Camaro and the quarter-mile have stuck together like a drag slick on a well-prepped starting line, and Chevrolet is pushing that winning legacy forward with the new Camaro SS Drag Race Development Program and the 2017 COPO Camaro.

    The Camaro SS Drag Race Development Program explores the quarter-mile capability of the Gen Six Camaro with concept parts designed to support 10-second elapsed times in a production-based model. The COPO Camaro offers the first look at the factory-built race car program for 2017.

    “From sportsman classes to the pro ranks, Camaro has been one of the most popular cars ever to launch down the drag strip,” said Jim Campbell, GM U.S. vice president of Performance Vehicles and Motorsports. “For 50 years Chevrolet has supported Camaro drag racers and these new SEMA vehicles demonstrate our commitment to the sport, with parts development and the advancement of the historic COPO Camaro program.”

    That commitment has helped put Camaro drivers in the winner’s circle, including seven class wins out of eight NHRA Stock classes and a Super Stock class win at the 2016 Chevrolet Performance U.S. Nationals in Indianapolis. COPO Camaro racer Jeff Lopez was the Stock Eliminator champion. 

    Drag Race Development
    The Camaro SS Drag Race Development Program was created to develop performance parts for 2016+ Camaro models. A test vehicle was built to mimic the typical stair-step enhancements many amateur racers make with their production Camaro SS models, including swapping the differential for a numerically higher ratio and adding horsepower-building components such as a cam-and-heads package to push the SS’s LT1 engine to more than 530 horsepower — and about 600 horsepower with a power adder.

    “More than simply achieving quick ETs in the Camaro, we are exploring the supporting components that help the car to go quicker with great durability,” said Mark Dickens, director, Performance Variants, Parts and Motorsports Engineering. “We’ve tested stronger axles and chassis components aimed at improving launch and traction attributes.”

    Engineers have made more than 100 passes down the quarter-mile with the development car, including the evaluation of DOT-approved racing and slick tires and a variety of drivetrain combinations.

    The engineering team also tested a higher-stall torque converter for greater launch capability, increasing the stall speed to 4,200 rpm with the LT1 engine. That’s approximately 30 percent higher than the stock converter. Along with a custom transmission calibration, the prototype converter allowed the car to launch harder, which improved the 60-foot time significantly and thereby improved the quarter-mile elapsed time.

    The best performance to date includes:

    • 60-foot time of 1.425 seconds
    • Eighth-mile time of 6.764 seconds at 100.85 mph
    • Quarter-mile time of 10.685 seconds at 125.73 mph

    Consistency in the performance tests came in large part from the Camaro SS’ production eight-speed paddle-shift automatic transmission, which fired off quick, immediate upshifts.

    “We worked this car just as hard as any serious racer would,” said Dickens. “We made pass after pass, pushing it harder, and were amazed at the capability and durability that came straight off the assembly line.”

    To support the greater horsepower and channel it to the ground durably, the engineers borrowed some heavy-duty, proven parts from the Gen 6 Camaro ZL1 including the half-shafts and prop shaft and the beefier Gen 5 ZL1 and Chevrolet Performance driveline upgrade with a 250mm, 3.73-geared rear-axle center section. They nicknamed it “Gravedigger,” because they haven’t been able to break it. The parts might be included in a range of Gen Six Camaro drag-racing parts Chevrolet is evaluating.  

    Additionally, the test car was fitted with Chevrolet Performance air induction and exhaust systems, as well as a “small” brake system that features small-diameter brake rotors that fit inside the test car’s 16-inch rear racing wheels and slicks.

    While the production Camaro SS features 20-inch wheels, optimal traction on the drag strip is achieved with racing slicks that feature taller sidewalls. They wrinkle slightly at launch as the slicks bite the starting line, reducing the chance for traction-killing tire spin. Smaller-diameter racing wheels typically don’t fit over large-diameter production brake rotors.

    “The Camaro SS Drag Race Development concept is a work in progress, but Chevrolet is serious about developing parts and packages tailored for drag racers,” said Dickens. “As we continue to develop the car, we’ll be listening intently to customers’ reactions to it and what they believe would help them the most on the drag strip. This is only the beginning.” 

    Like other Chevrolet development vehicles, the Drag Race Development concept wears a camouflaged exterior. There is, however, no disguising its performance capability when it’s lined up at the Christmas tree.

    2017 COPO Camaro show car
    The 2017 COPO Camaro program extends the production legacy that was re-started in 2012 and based on the special-order high-performance Camaro models created in 1969 to win on the drag strip.

    Chevrolet’s 2017 COPO Camaro show car — serial number 01 of 69 — was introduced today and features a supercharged 350 engine, custom Weld racing wheels and a unique “anodized” concept version of the production Hyper Blue Metallic exterior color. It will be sold at the Barrett-Jackson Scottsdale auction in January 2017, with proceeds to benefit United Way.

    Like the previous editions, the 2017 COPO Camaro is designed for NHRA’s Stock Eliminator classes. The production race cars are fitted with racing chassis and suspension components, including a unique solid rear axle system in place of a regular-production Camaro’s independent rear axle.

    Additional details include:

    • Lightweight, adjustable coil-over strut front suspension
    • Four-link rear suspension with double-adjustable coil-over shocks, Panhard bar and stabilizer bar
    • Rear axle with an aluminum center section featuring a lightweight steel spool and 40-spline gun-drilled axle shafts
    • Lightweight, drag-race manual four-wheel disc brakes (unassisted)
    • Custom manual steering rack
    • Fuel cell with built-in high-pressure fuel pump
    • Unique racing wire harness

    When it comes to horsepower, racers can select from a variety of supercharged and naturally aspirated LS- and LT-family engines, including a supercharged 350 (5.7L), a naturally aspirated 427 (7.0L) engine and an LT-based, direct-injected 376 (6.2L) engine. The engines are backed by an SFI-approved ATI TH400 three-speed automatic transmission. 

    Each COPO Camaro race car is built by hand starting with production hardware, including the same body-in-white used for production models.

    Racers interested in purchasing one of the 2017 COPO Camaro race cars must register at Chevrolet.com/COPO by Dec. 15, 2016. An independent third party will randomly select from the pool of interested customers. Those selected will be contacted in the first quarter of 2017.

    Enthusiasts can also follow updates on the 2017 COPO Camaro program at theBlock.com.

    Edited by William Maley

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    • By Drew Dowdell
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      A thick piston crown — the top of the piston — and reinforced top ring add strength to support the tremendous cylinder pressures enabled by turbocharging and the engine’s high 15.0:1 compression ratio.
      DOHC Cylinder Head and Rear Cam Drive
      Overhead camshafts offer a direct, efficient means of operating the valves, while four valves per cylinder activated by maintenance-free finger followers with hydraulic lash adjusters increase airflow in and out of the engine. This arrangement is integrated on the Duramax 3.0L’s lightweight aluminum cylinder head, which is topped with a lightweight composite cam cover that incorporates the crankcase ventilation and oil separation systems.
      A pair of lightweight, assembled camshafts actuates 28.35 mm diameter (1.12-inch) intake and 24.55 mm diameter (0.97-inch) exhaust valves. The camshaft drivetrain is uniquely located at the rear (flywheel side) of the engine, for greater refinement and packaging considerations for the comparatively long inline-six. A crankshaft-driven chain drives the high-pressure direct-injection fuel pump, while a chain driven by the fuel pump drives both intake and exhaust camshafts. A smaller belt drives the variable flow oil pump from the crankshaft.
      Additional Technology Highlights
      Variable geometry turbocharging enables the Duramax 3.0L engine to deliver class-leading horsepower with minimal effect on overall efficiency. The system uses closed loop controlled vanes position and sophisticated electronic controls to automatically adjust boost pressure to the desired value based on engine running conditions and instantaneous power demand. The liquid-cooled turbocharger features a low-friction ball-bearing shaft and is mounted close to the exhaust outlet of the engine for quicker spool-up of the turbine and quicker light-off of the exhaust catalyst. A water-to-air intercooling system produces a cooler higher density air charge for greater power. Maximum boost pressure is 43,5 psi (300 Kpa) absolute.
      Low-pressure EGR: The Duramax 3.0L utilizes new low-pressure Exhaust Gas Recirculation to optimize performance and efficiency. The EGR system diverts some of the engine-out exhaust gas and mixes it back into the fresh intake air stream, which is drawn into the cylinder head for combustion. That lowers combustion temperatures and rates.
      Traditionally, EGR systems in diesel applications recirculate exhaust gases between the two high-pressure points, the exhaust manifold(s) and intake manifold. However, it generally requires efficiency-robbing assistance from the turbocharger or other supporting elements to achieve the pressure differential required for sufficient EGR flow rates.
      The new low-pressure system adds to the high-pressure system, supporting continual adjustment of exhaust backpressure for more efficient operation. It recirculates gases between the low-pressure points in the exhaust system (downstream of the particulate filter) and after the compressor inlet.
      When the low-pressure EGR is activated by an electronically controlled valve, the engine burns exhaust gas that has already passed through the particulate filter. That increases the turbocharger’s efficiency, which helps overall vehicle efficiency without deteriorating the rate of particulate matter emitted by the engine.
      A variable intake manifold offers dual air intake pathways for each cylinder. Electronically controlled flaps — one for each cylinder — shorten or lengthen the airflow to each cylinder. This optimizes the airflow into the engine and improves performance and responsiveness across the rpm band, particularly at lower engine speeds.
      A variable-pressure oiling system with a continuously variable-displacement vane oil pump enhances efficiency by optimizing oil pressure as a function of engine speed and load. With it, the oil supply is matched to the engine requirements rather than the excessive supply of a conventional, fixed-displacement oil pump. The engine uses low-friction Diesel Dexos 0W20 oil.
      Oil jets located in the block are employed for performance and temperature control. They target the inner core of the piston with an extra layer of cooling, friction-reducing oil. The jets reduce piston temperature, allowing the engine to produce more power and enhance long-term durability than engines without the technology.
      Active Thermal Management helps the engine warm up quickly to achieve and maintain its optimal engine temperature for performance and efficiency over the entire engine operating range. The system uses a three-actuator rotary valve system to distribute coolant through the engine in a targeted manner. It sends heat where it’s needed to warm up the engine to reduce friction and heat the passenger cabin or cools when needed for high-power operation. The Duramax 3.0L also features split cooling between the block and head.
      Common rail direct fuel injection of 2,500 bar (36,250 psi) helps generates class-leading horsepower and torque. The system’s pressure is generated by an engine-driven twin-piston pump sending fuel to solenoid-activated injectors with nine-hole nozzles that support precise metering of the fuel for a smooth idle and lower combustion noise. The fuel system is capable of multiple injections per combustion cycle — up to 10 times per injector — for more consistent and stable combustion performance that translates into smoothness and refinement, particularly at idle.   
      Electronic throttle valve: The Duramax 3.0L features an electronic throttle valve to regulate intake manifold pressure in order to optimize exhaust gas recirculation rates. It also contributes to a smooth engine shutdown via a more controlled method of airflow reduction.
      Ceramic glow plugs used in the Duramax 3.0L heat up more quickly and hotter than conventional metal-based glow plugs, helping the engine start and heat up more quickly in cold weather. The Duramax 3.0L achieves unassisted and assisted starting temperatures of -22 F (-30 C) and -40 F (-40 C) respectively.
      Stop/start technology helps optimize efficiency in city driving. The driver-selectable system shuts off the engine at stoplights and other stop-and-go situations. The engine automatically restarts when the driver takes their foot off the brake.
      ABOUT CHEVROLET
      Founded in 1911 in Detroit, Chevrolet is one of the world's largest car brands, doing business in more than 100 countries and selling more than 4.0 million cars and trucks a year. Chevrolet provides customers with fuel-efficient vehicles that feature engaging performance, design that makes the heart beat, passive and active safety features and easy-to-use technology, all at a value. More information on Chevrolet models can be found at www.chevrolet.com.
      # # #
      2019 CHEVROLET SILVERADO 3.0L DURAMAX TURBO-DIESEL SPECIFICATIONS
      Type:
      Duramax 3.0L DOHC Turbo Diesel I6 
      Bore & Stroke (in. / mm):
      3.30 x 3.54 inches (84mm x 90mm)
      Block Material:
      Aluminum
      Cylinder Head Material:
      Aluminum
      Compression Ratio:
      15.0: 1
      Firing Order:
      1-5-3-6-2-4
      Valvetrain:
      Dual-overhead camshafts, four-valves per cylinder
      Air Delivery:
      Single variable-geometry turbocharger; intercooling system. 42.8-psi / 2.95 bar max boost
      Fuel Delivery:
      High-pressure, common-rail direct injection (36,250 psi / 2500 bar); electronic throttle valve
      Ignition System:
      Compression
      Max Engine Speed:
      5100 rpm
      Additional Features:
      Continuously variable oil pump; engine oil cooler, automatic stop/start, Active Thermal Management,
      Emissions Control:
      Low-pressure Exhaust Gas Recirculation (EGR); Selective Catalyst Reduction on Filter (SCRF)
      Horsepower
      (hp / kW @ rpm):
      277 / 204 @ 3750 (SAE certified)
      Torque
      (lb.-ft. / Nm @ rpm):
      460 / 624 @ 1500 (SAE certified)
       
    • By Drew Dowdell
      Chevy unveiled the 2021 Trailblazer today, filling a space between the Chevrolet Trax and Equinox in the lineup.  This follows the recent release of the Buick Encore GX that fills a similar but more premium space. 
      Picking up on styling from the larger Blazer and the Camaro, the Trailblazer takes an aggressive, sporty posture. Yes, there also will be an RS version, but no word yet on what powertrains will be available. 
      Chevy is finally going to start offering active safety features as standard, something the competition started doing a few years ago. The standard active safety features are Front Pedestrian Braking, Automatic Emergency Braking and Lane Keep Assist with Lane Departure Warning.  Optional will be Adaptive Cruise Control - Camera, Rear Park Assist and a High Definition Rear Vision Camera.
      The 2021 Trailblazer will enter dealerships in early 2020. 


      View full article
    • By Drew Dowdell
      Chevy unveiled the 2021 Trailblazer today, filling a space between the Chevrolet Trax and Equinox in the lineup.  This follows the recent release of the Buick Encore GX that fills a similar but more premium space. 
      Picking up on styling from the larger Blazer and the Camaro, the Trailblazer takes an aggressive, sporty posture. Yes, there also will be an RS version, but no word yet on what powertrains will be available. 
      Chevy is finally going to start offering active safety features as standard, something the competition started doing a few years ago. The standard active safety features are Front Pedestrian Braking, Automatic Emergency Braking and Lane Keep Assist with Lane Departure Warning.  Optional will be Adaptive Cruise Control - Camera, Rear Park Assist and a High Definition Rear Vision Camera.
      The 2021 Trailblazer will enter dealerships in early 2020. 

    • By Drew Dowdell
      GM is delaying the launch of the new inline-6 diesel engine bound for the GMC Sierra 1500 and Chevrolet Silverado 1500.  No longer available for ordering on the 2019s, GM has pushed the availability into the 2020 model year. 
      According the GM, the emissions certification process on the engine is taking longer than normal.   Customers who ordered a 2019 Silverado or Sierra with the diesel engine will have their orders canceled and will need to resubmit the order for a 2020 model year vehicle once they become available for order.  GM has yet to open orders for 2020 truck models with the diesel engine, but a GM spokesperson said that it will be "soon".
      Assuming the current pricing holds, the 3.0 liter Duramax diesel will be priced $2,495 over a 5.3 liter V8 and $2,890 over the 4-cylinder 2.7-liter turbo. 
      Meanwhile for 2020, GM is expanding the availability of adaptive cruise control and the 10-speed automatic across the lineup.  At Chevy, the Silverado will now have the optional 6.2 liter V8 on five out of the eight trim levels.  The 6.2 V8 will be paired with the 10-speed automatic and available on the Custom Trail Boss, RST, LT Trail Box, LTZ, and High Country. At GMC, the CarbonPro box will be available at no additional cost when paired with certain other packages on the Sierra AT4 and Sierra Denali, while the double cab Sierra Elevation Trim will now also be available in a crew cab. 
       

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