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William Maley

Chevrolet News:Leaked: Is This The C7 Front End?

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William Maley

Staff Writer - CheersandGears.com

July 9, 2012

Automakers try their best to keep their upcoming cars under wraps - literally and psychically. However, with a click of a shutter or a mouse, the secret they were try to keep is now out in the world.

Such could the case with the next generation Corvette. Omega Tool Corp., a Tier One supplier for GM recently put out a video on how they mold the plastic bumper cover for the Corvette. This video normally wouldn't be making everyone go crazy, except this bumper cover isn't for a C6. The one shown in the video carries many of the cues shown on the Stingray concept in 2009. This has caused people to speculate that happens to be for the C7.

Since then, the video has been pulled by Omega, which has only added fuel to fire of it being for the C7. We're not quite ready to jump on that bandwagon, but it does leave us with some questions of whats in store for the next Corvette.

Source: Corvette Online

William Maley is a staff writer for Cheers & Gears. He can be reached at william.maley@cheersandgears.com or you can follow him on twitter at @realmudmonster.


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Yup, that bumper cover matches the one on Jalopnik's rendering for the Corvette C7 that was posted over there a good number of moons ago...

Edited by ocnblu

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Call me cynical, but I mostly think of these sort of events as deliberate.

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Call me cynical, but I mostly think of these sort of events as deliberate.

.

Look at all the free publicity Chevy is getting out of this...

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Call me cynical, but I mostly think of these sort of events as deliberate.

You're not the only person who is thinking that

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I mean duh, they do not think taking it down means it will go away in the internet age.

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Is anyone really excited about this image?

What I mean is, it's certainly nothing radical (not saying ti should be).

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OMG! OMG! OMG!

:smilewide: J/K; a piece of plastic isn't really that exciting... It does not reveal anything about the car's overall appearance...

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Call me cynical, but I mostly think of these sort of events as deliberate.

In some cases they do leak what they want to show. But in this case it was just a screw up. GM has pretty much gotten to the point they do not show much of anything till they are a little closer to release anymore.

After seeing the drawings last fall that pretty much nailed the design this photo gives the nose a little more depth. It looks like the nose is a little more Ferrari like with a Corvette tone.

As to how much there is to see here is based on how much of the real car you have seen. The Jalopnik drawing I tried to post here pretty much told the tale that was confirmed by the winter test photos. This one here just give the idea on more of the details on the real body shape.

Not a big deal but if you add it up it gives some idea on how the body will changes will look. The greater changes will be from the doors back.

Edited by hyperv6

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I like the Video at point 1:15 when you can clearly see the new Rear Facia for the C7. It is not radical different, but it is a nice evolution from the C6.

Over all, I am glad they are keeping the sting ray concept alive in the C7!!!

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Jalopnik just got a nasty letter from a lawyer representing the tool company saying basically "Take this down or we'll sue."

You guys get anything like that yet?

Anyway, they shouldn't really have a case, because the liability falls on the person who leaked it in the first place.

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      The performance of each engine/transmission combination benefits from a truck that is lighter and more aerodynamic than the previous model.
      “With less weight and less wind resistance, we improved the driving dynamics without sacrificing fuel efficiency,” said Asoklis. “The next-gen Silverado is a bigger truck, but the chassis feels more responsive and acceleration is more pronounced. I would argue it’s the best-driving truck we have ever built.”
      The 2019 Silverado is larger than before, including a wheelbase that is up to 3.9 inches (100mm) longer, yet overall length is only 1.6 inches (41mm) longer, enabling both more cargo volume and more interior room for all cab lengths. Remarkably, it’s also lighter, weighing up to 450 pounds (204 kg) less than the current Silverado when comparing crew cab V-8 models, due to extensive use of mixed materials and advanced manufacturing.
      To improve the aerodynamic efficiency of the next-gen Silverado, the front grille features functional air curtains, similar to those introduced on the sixth-generation Camaro, that reduce wind drag by routing air around the front wheel wells. The powerful side profile also enhances aerodynamics, with an integrated spoiler at the rear edge of the cab that directs air onto the contoured tailgate, reducing wind drag from the bed. Most models also feature active aero shutters integrated in the front grille that close to reduce wind drag and open to provide improved engine cooling when needed. Changes like these result in a 7 percent increase in total aerodynamic efficiency.
      From the family of the Most Dependable, Longest Lasting full-size pickups on the road*
      For the new Silverado, Chevy set the lofty goal of improving on the legacy of the Most Dependable, Longest Lasting full-size pickups on the road. To do so, the next-gen truck will be subjected to more than 475,000 validation tests and accumulate a staggering seven million miles of real-world testing before the first 2019 Silverado 1500 is delivered to customers.
      That includes a battery of tests for the Silverado engines and transmissions that will simulate a range of customer needs:
      Each type of engine was first subjected to a “torture test” in a dynamometer test cell, running for months nonstop to simulate a lifetime of maximum hot and cold cycles. Each Silverado variant is certified to the SAE J2807 standard for towing and payload capacity. Certification requires a full battery of grueling tests such as the Davis Dam test, in which the truck must carry its maximum gross combined vehicle weight up a 7 percent grade in 110-degrees F (43 degrees C) heat, with no reduction in performance, including air-conditioning. Chevrolet engineers prove every Silverado engine and transmission design for lubrication capability on tilt stands, originally developed for Corvette, that tilt at an angle of up to 53 degrees and can simulate angles at a rate of up to 40 degrees a second — the equivalent of up to 1.4g. Production plans
      Silverado production commences with crew-cab V-8 models starting in the third quarter. In the fourth quarter, production will expand to include regular- and double-cab models, as well as V-6 and 2.7L Turbo engines. The new Duramax 3.0L inline-six turbo diesel will be available in early 2019.
      EPA fuel economy estimates and towing/payload capacities are not yet available, and will be announced closer to launch.
      2019 CHEVROLET SILVERADO PROPULSION LINEUP
       
      4.3L V-6
      w/AFM (6-spd.) 2.7L I-4 Turbo w/AFM (8-spd.)  
      5.3L V-8 w/AFM (6-spd.)
      5.3L V-8 w/DFM (8-spd.)
      3.0L I-6 Turbo-Diesel  (10-spd.)
      6.2L V-8 w/DFM (10-spd.)
      Work Truck (WT)
      Std.
      --
      Avail.
      --
      --
      --
      Custom
      Std.
      --
      Avail.
      --
      --
      --
      Custom Trail Boss
      Std.
      --
      Avail.
      --
      --
      --
      LT
      --
      Std.
      --
      Avail.
      Avail.
      --
      RST
      --
      Std.
      --
      Avail.
      Avail.
      --
      LT Trail Boss
      --
      --
      --
      Std.
      --
      --
      LTZ
      --
      --
      --
      Std.
      Avail.
      Avail.
      High Country
      --
      --
      --
      Std.
      Avail.
      Avail.
      * Dependability based on longevity: 1987-July 2017 full-size pickup registrations.
      ALL-NEW 2.7L TURBO ENHANCES VERSATILITY OF THE 2019 SILVERADO
      Technological powerhouse delivers performance and efficiency DETROIT — The all-new 2019 Chevrolet Silverado 1500 will be offered with an all-new, technologically advanced 2.7L Turbo that expands the range of available engines and builds upon additional choices to help customers find the Silverado that perfectly suits their needs.
      Standard on LT and RST trims, the new engine delivers an SAE-certified 310 horsepower and 348 lb-ft of torque, for 22 percent more torque than the 4.3L V-6 it replaces. Developed specifically for truck applications, the new 2.7L Turbo inline four-cylinder engine delivers peak torque from 1,500 to 4,000 rpm.
      The next-gen Silverado with the 2.7L Turbo delivers 0-60 mph performance in less than seven seconds and weighs 380 pounds less than the current Silverado with the 4.3L V-6. Compared with competitive full-size trucks, the Silverado 2.7L Turbo is expected to deliver comparable payload capability with greater torque than the 3.3L V-6 in the Ford F-150 XLT and the 3.6L V-6 in the Ram 1500 Big Horn.
      “The new 2.7L Turbo is a technological marvel, with our most advanced valvetrain,” said Tom Sutter, chief engineer for the 2.7L Turbo. “With a broad, flat torque curve and quick throttle response, it punches above its weight, delivering surprising performance and efficiency.”
      The cornerstone of the 2.7L Turbo is an innovative double overhead cam valvetrain that enables:
      Chevrolet’s first use of Active Fuel Management (cylinder deactivation) on a four-cylinder engine. High- and low-lift valve profiles. Continuously variable valve timing. Additional engine technologies supporting the engine’s performance and efficiency include:
      Dual-volute turbocharger housing for improved throttle response and low-speed torque. Chevrolet’s first application of Active Thermal Management, which uses targeted engine heating and cooling to improve engine performance in hot and cold ambient temperatures. An integrated exhaust manifold that is part of the cylinder head assembly and recovers exhaust heat for faster engine and transmission warmup, with quicker turbo response. Stop/start technology that automatically stops the engine in stop-and-go traffic for fuel efficiency. An electric water pump that eliminates the drag of a conventional, engine-driven pump to enhance efficiency. It also enables continual cabin heating even when the engine is disabled by the stop/start feature. Designed as a truck engine
      The new 2.7L Turbo engine represents a clean-sheet design for Chevrolet and was developed from the outset as a truck engine.
      To help generate the strong low-end torque customers expect in a truck, it was designed with a long piston stroke of 4.01 inches (102mm), which is the distance the piston travels up and down within the cylinder.
      The long stroke enables improved combustion and thus a higher compression ratio. Typically, a long stroke can increase the load of the pistons against the cylinder walls, generating more friction. That’s alleviated in the 2.7L Turbo with an offset crankshaft. It is slightly off-center of the cylinders, allowing a more upright position for the connecting rods during their movement.
      To support the high cylinder pressures that come with turbocharging, the crankshaft and connecting rods are made of forged steel and the pistons are made of a tough aluminum alloy with a cast iron ring groove insert.
      All elements of the 2.7L Turbo were designed for the demands of turbocharged performance in a truck environment, and the engine was subjected to the same rigorous durability standards as the Silverado’s proven V-8 engines.
      The 2.7L Turbo features an aluminum block and cylinder head for reduced mass.
      Unique valvetrain offers more precise control
      The 2.7L Turbo’s valvetrain is GM’s first to incorporate variable lift, duration and Active Fuel Management to optimize performance and efficiency across the rpm band. It is a key reason the engine’s peak torque is available at only 1,500 rpm.
      The system’s electro-mechanical variable camshaft effectively allows the engine to operate with three different camshaft profiles, complementing the variable valve timing system to deliver optimized operating modes for different engine speeds and loads:  
      High valve lift for full power. Low valve lift for balance of power and efficiency. Active Fuel Management shuts down two of the cylinders in light load conditions to further conserve fuel. “It’s like having different engines for low- and high-rpm performance,” said Sutter. “The camshaft profile and valve timing is completely different at low and high speeds, for excellent performance across the board.”
      The camshaft design alters the lift of the intake and exhaust valves. As the engine load changes, electromagnetic actuators allow a movable shaft containing different cam lobes to shift imperceptibly between high-lift and low-lift profiles.
      Lift is the distance the valve travels from its seat when opened, and duration is the amount of time the valve remains open. Higher lift and longer duration allow more air to flow into the combustion chamber, so the system’s high-lift lobe profile enhances performance at higher rpm, while the low-lift profile optimizes efficiency at low- and mid-range speeds.
      Dual-volute turbocharger builds torque
      The 2.7L Turbo engine employs an advanced dual-volute turbocharger that elevates the performance and efficiency advantages of a conventional turbo, with quicker response and enhanced low-rpm torque production.
      Rather than a single spiral chamber (volute) feeding exhaust gas from the exhaust manifold to drive the turbine on the turbocharger, the dual volute design has a pair of separate chambers with two exhaust gas inlets and two nozzles to drive the turbine. The design allows the exhaust pulses of the engine to be leveraged for faster spool-up and subsequent boost production, particularly at low rpm, where the effect significantly enhances torque output and drivability.
      It works in unison with the engine’s integrated exhaust manifold/turbocharger housing, which splits the exhaust channels from the cylinder head so the exhaust flows through two separate channels in the turbo housing, based on the engine’s exhaust pulses. When complemented by the precision of the engine’s valvetrain, that separation leverages exhaust scavenging techniques to optimize gas flow, which decreases exhaust gas temperatures, improves turbine efficiency and reduces turbo lag.
      An electronically controlled wastegate and charge-air cooling system support the turbocharger and enhance its effectiveness. Compared to a conventional wastegate, the electronically controlled version offers more precise management of the engine’s boost pressure for smoother, more consistent performance.
      With the charge-air cooler, the pressurized, heated air generated by the turbocharger is pumped through a heat exchanger before it enters the engine. That lowers the air charge temperature by about 130 degrees F (74 C), packing the combustion chambers with cooler, denser air that enhances power production. The system achieves more than 80 percent cooling efficiency with less than 2 psi (12 kPa) flow restriction at peak power, contributing to the engine’s available torque production at low rpm.
      Additional features
      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.
      Active Thermal Management helps the engine warm up faster and achieve its optimal engine temperature for performance and efficiency. The system uses a 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 cab, or cools when needed for high power operation.
      An electric water pump — a first for Chevy trucks — supports the Active Thermal Management system and further enhances the engine’s performance and efficiency by eliminating the parasitic drag that comes with a conventional engine-driven water pump.
      Direct fuel injection is used to optimize efficiency and performance. With direct injection, a higher compression ratio (10.0:1) is possible because of a cooling effect as the injected fuel vaporizes in the combustion chamber, reducing the charge temperature and improving resistance to spark knock. Direct injection also enables gas scavenging from the combustion chamber to the turbo for fast response.
      Dual overhead camshafts contribute to the 2.7L Turbo’s smoothness and high output, with dual independent continuously variable valve timing working with the valvetrain to deliver optimal performance and efficiency. The dual independent system, which allows the intake and exhaust valves to be phased at different rates, promotes linear delivery of torque with near-peak levels over a broad rpm range, and high specific output (horsepower per liter of displacement) without sacrificing overall engine response or driveability.
      An integrated exhaust manifold on the cylinder head assembly promotes faster engine warmup and quicker turbo response.
      Oil jets located in the block are employed for performance and temperature control. They target the underside of the pistons and the surrounding cylinder walls 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.
      Stop/start enhances fuel economy in city driving. The driver-selectable system shuts off the engine at stoplights and certain other stop-and-go situations, saving fuel. The engine automatically restarts when the driver takes their foot off the brake.
      The all-new 2.7L Turbo is matched with a Hydra-Matic eight-speed automatic transmission featuring enhancements designed to improve shift quality, as well as a new centrifugal pendulum absorber torque converter that reduces vibrations to improve smoothness.
      The all-new 2.7L Turbo will be built at the General Motors Spring Hill facility in Tennessee.
      The 2019 Silverado goes on sale this fall. EPA fuel economy estimates and towing/payload capacities are not yet available and will be announced closer to launch.
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