Jump to content
  • Sign up for FREE! Become a GM-Trucks.com Member Today!

    In 20 seconds you can become part of the worlds largest and oldest community discussing General Motors, Chevrolet and GMC branded pickups, crossovers, and SUVs. From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience. 

Sign in to follow this  
Zane

The "Big Nasty" 625hp 2015 Corvette Z06

Recommended Posts

2015-Chevrolet-CorvetteZ06-026.jpg2015-Chevrolet-CorvetteZ06-030.jpg


2015 Chevrolet Corvette Z06 is Most Capable, Ever

DETROIT – Chevrolet today introduced the most track-capable Corvette in the brand’s history – the 2015 Corvette Z06. It stretches the performance envelope for Corvette with unprecedented levels of aerodynamic downforce, at least 625 horsepower from an all-new supercharged engine, and an all-new, high-performance eight-speed automatic transmission – all building on the advanced driver technologies introduced on the Corvette Stingray.


2015-Chevrolet-CorvetteZ06-003.jpg2015-Chevrolet-CorvetteZ06-005.jpg


“The new Z06 delivers levels of performance, technology and design that rival the most exotic supercars in the world,” said Mark Reuss, president, General Motors North America. “And the Z06 leverages the engineering expertise of GM, offering the choice of two world-class transmissions, supercar performance without supercar fuel consumption and technologies that make it easier to fully enjoy the incredible experience of driving it.”


The 2015 model is the first Corvette Z06 to offer a supercharged engine, an automatic transmission and, thanks to a stronger aluminum frame, a removable roof panel. The new, supercharged 6.2L engine is expected to deliver at least 625 horsepower (466 kW), and can be matched with either a seven-speed manual or an all-new, high-performance eight-speed automatic transmission with paddle shifters for manual control. The aluminum frame carries over from the Corvette Stingray and will be used essentially unchanged for the Corvette Racing C7.R.


A track-focused Z07 Performance Package adds unique components for true aerodynamic downforce, Michelin Pilot Super Sport Cup tires for enhanced grip, and Brembo carbon ceramic-matrix brake rotors that improve braking performance and contribute to greater handling through reduced unsprung weight. Although development testing is ongoing, the Z07 package has already recorded some of the fastest lap times ever for a Corvette, surpassing even the ZR1.


“The Corvette Z06 is a great example of the technology transfer between racing and production Corvettes,” said Tadge Juechter, Corvette chief engineer. “First, we took what we learned on the Corvette Racing C6.R and applied that to the all-new Corvette Stingray. Then, using the Stingray as a foundation, the Z06 and C7.R were developed to push the envelope of performance on the street and the track.”


Supercharged, efficient performance

The heart of the 2015 Corvette Z06 is the all-new LT4 6.2L supercharged V-8 engine, expected to deliver an estimated 625 horsepower (466 kW) and 635 lb-ft of torque (861 Nm). To balance performance and efficiency, the LT4 leverages the same trio of advanced technologies introduced on the Corvette Stingray: Direct injection, Active Fuel Management, or cylinder deactivation, and continuously variable valve timing.


These technologies – combined with the fuel-efficient multi-speed transmissions, aerodynamic design and lightweight construction – help make the new Z06 surprisingly fuel efficient.


“The supercharged LT4 engine delivers the greatest balance of performance and efficiency ever in the Corvette,” said John Rydzewski, assistant chief engineer for Small-Block engines. “It is one of the world’s only supercharged engines to incorporate cylinder deactivation technology, enabling it to cruise efficiently on the highway with reduced fuel consumption, but offer more than 600 horsepower whenever the driver calls up its tremendous power reserve.”


To maintain the Z06’s mass and performance targets, the LT4 engine was designed with a more-efficient, more-compact supercharger. Even with its integrated supercharger/intercooler assembly mounted in the valley between the cylinder heads, the engine is only about one inch (25 mm) taller than the Corvette Stingray’s LT1 engine – while delivering nearly 37 percent more horsepower and 40 percent more torque.

The new 1.7L Eaton R1740 TVS supercharger spins at up to 20,000 rpm – 5,000 rpm more than the supercharger on the Corvette ZR1’s LS9. The rotors are shorter in length, too, which contributes to their higher-rpm capability – and enables them to get up to speed quicker, producing power-enhancing boost earlier in the rpm band. That boost is achieved more efficiently, thanks to a new, more direct discharge port that creates less turbulence, reducing heat and speeding airflow into the engine.


The LT4 engine also has several unique features designed to support its higher output and the greater cylinder pressures created by forced induction, including:


-Rotocast A356T6 aluminum cylinder heads that are stronger and handle heat better than conventional heads

-Lightweight titanium intake valves and machined connecting rods for reduced reciprocating mass

-High 10.0:1 compression ratio – for a forced-induction engine – enhances performance and efficiency and is enabled by direct injection

-Forged aluminum pistons with unique, stronger structure to ensure strength under high cylinder pressures

-Stainless steel exhaust headers and an aluminum balancer that are lighter than their LT1 counterparts

-Standard dry-sump oiling system with larger cooler capacity than Z51; used with dual-pressure-control oil pump.

-The LT4 will be built in Tonawanda, N.Y., and at the new Performance Build Center in Bowling Green, Ky.


Eight speeds, no waiting

The supercharged LT4 is offered with a standard seven-speed manual transmission with Active Rev Match, or an all-new 8L90 eight-speed paddle-shift automatic transmission designed to enhance both performance and efficiency.


“Unlike most ultra-performance cars, the Corvette Z06 offers customers the choice between two transmissions to suit their driving styles,” said Juechter. “The seven-speed gives the driver the control of a true three-pedal manual transmission with perfect shifts enabled by Active Rev Matching. The new eight-speed automatic offers drivers the comfort and drivability of a true automatic transmission, as well as lightning-fast shifts and manual control for track driving.”


The seven-speed manual incorporates rev-matching technology for upshifts and downshifts. This driver-selectable feature can be easily engaged or disengaged via paddles on the steering wheel. The seven-speed is used with a new dual-mass flywheel and dual-disc clutch, which deliver greater shift quality and feel through lower inertia.


The eight-speed automatic is tuned for world-class shift-response times, and smaller steps between gears keep the LT4 within the sweet spot of the rpm band, making the most of the output of the supercharged engine for exhilarating performance and greater efficiency.


For performance driving, the transmission offers full manual control via steering wheel paddles, and unique algorithms to deliver shift performance that rivals the dual-clutch/semi-automatic transmissions found in many supercars – but with the smoothness and refinement that comes with a conventional automatic fitted with a torque converter.


In fact, the 8L90’s controller analyzes and executes commands 160 times per second, and wide-open throttle upshifts are executed up to eight-hundredths of a second quicker than those of the dual-clutch transmission offered in the Porsche 911.


“There’s no trade-off in drivability with the new 8L90 eight-speed automatic transmission – it was designed to deliver performance on par with dual-clutch designs, but without sacrificing refinement,” said Bill Goodrich, assistant chief engineer for eight-speed automatic transmissions. “It is also the highest-capacity automatic transmission ever offered in a Chevrolet car.”


Featuring four gearsets and five clutches, creative packaging enables the GM-developed eight-speed automatic to fit the same space as the six-speed automatic used in the Corvette Stingray. Extensive use of aluminum and magnesium make it more than eight pounds (4 kg) lighter than the six-speed. Along with design features that reduce friction, the 8L90 is expected to contribute up to 5-percent greater efficiency, when compared with a six-speed automatic.


The eight-speed automatic will be built at GM’s Toledo, Ohio, transmission facility.


Designed for downforce

The performance targets of the Z06 also posed a challenge for the design team, which had to create a striking design that also contributed to increased capabilities.


“Practically every exterior change served a functional purpose, as this beast needed more of everything,” said Tom Peters, Corvette design director, “The flared fenders accommodate larger, wider wheels and tires for more grip. The larger vents provide more cooling air to the engine, brakes, transmission and differential for increased track capability. The more aggressive aerodynamic package generates true downforce for more cornering grip and high-speed stability.”


The design changes began not with the exterior panels, but the tires.


To deliver the levels of grip needed for the Z06’s performance targets, the Z06 was fitted with larger Michelin tires (Pilot Super Sport tires for the Z06; Sport Cup 2 tires with the Z07 package). The P285/30ZR19 front tires are 1.5 inches wider than the tires on the Stingray, while the 335/25ZR20 rear tires are two inches wider.


To cover the wider tire tread, the fenders of the Z06 were extended by 2.2 inches (56 mm) at the front, and 3.15 inches (80 mm) at the rear. These extensions give the Corvette Z06 a wider, lower appearance further emphasized by a unique rear fascia. It incorporates the same taillamp assemblies as the Stingray, but on the Z06 the taillamps are pushed approximately three inches farther apart, toward to edges of the body.


The tires are mounted on lightweight, spin-cast aluminum wheels that are also wider than the Stingray (19 x 10 inches in front and 20 x 12 inches in the rear). Their open, ultralight design showcases the massive Brembo brakes, which are part of the design aesthetic:


2015-Chevrolet-CorvetteZ06-009.jpg2015-Chevrolet-CorvetteZ06-012.jpg

2015-Chevrolet-CorvetteZ06andC7R-023.jpg2015-Chevrolet-CorvetteZ06-025.jpg

2015-Chevrolet-CorvetteZ06-003.jpg

2015-Chevrolet-CorvetteZ06-005.jpg

2015-Chevrolet-CorvetteZ06-009.jpg

2015-Chevrolet-CorvetteZ06-012.jpg

2015-Chevrolet-CorvetteZ06-025.jpg

2015-Chevrolet-CorvetteZ06-026.jpg

2015-Chevrolet-CorvetteZ06-030.jpg

2015-Chevrolet-CorvetteZ06andC7R-023.jpg

2015-Chevrolet-CorvetteZ06-003.jpg

2015-Chevrolet-CorvetteZ06-005.jpg

2015-Chevrolet-CorvetteZ06-009.jpg

2015-Chevrolet-CorvetteZ06-012.jpg

2015-Chevrolet-CorvetteZ06-025.jpg

2015-Chevrolet-CorvetteZ06-026.jpg

2015-Chevrolet-CorvetteZ06-030.jpg

2015-Chevrolet-CorvetteZ06andC7R-023.jpg

2015-Chevrolet-CorvetteZ06-003.jpg

2015-Chevrolet-CorvetteZ06-005.jpg

2015-Chevrolet-CorvetteZ06-009.jpg

2015-Chevrolet-CorvetteZ06-012.jpg

2015-Chevrolet-CorvetteZ06-025.jpg

2015-Chevrolet-CorvetteZ06-026.jpg

2015-Chevrolet-CorvetteZ06-030.jpg

2015-Chevrolet-CorvetteZ06andC7R-023.jpg

  • Like 1

Share this post


Link to post
Share on other sites

Very intrigued to see how they will make the traditional auto trans work out in this.

 

Wonder if it will start below 80k?

 

Those Ferrari beat down comparison articles could get epic.

Edited by SnakeEyes 325is

Share this post


Link to post
Share on other sites

The 2014 Silerado is a dissapointment for me so I am putting the $60k I was going to use to upgrade my truck on one of these instead. The truck guys should be making the same effort to stay ahead of the class as the corvette engineers. Well done Corvette!

Share this post


Link to post
Share on other sites

Does anyone else find it intriguing how opinions on the same thing vary so much? I can't fathom how anyone would say this beast is anything but breathtaking, but to each his/her own! Live and let live.

I watched the live reveal and I felt tears building up when I saw this and the C7.R. Gorgeous.

Share this post


Link to post
Share on other sites

Hopefully it doesnt have a ZR1 price tag.

Share this post


Link to post
Share on other sites

Looks great, wonder how they are gonna fit the Zr1 in. Seems like this is the Z28 of the vette family. More track oriented and more expensive than the "normal" top of the line car. Wonder if they are gonna say the Z28 is just gonna take the place that the last gen Z06 held.

Share this post


Link to post
Share on other sites

"Equipped with Cylinder Deactivation for saving fuel"

 

Yea because when I drop 75k on a car with over 600hp I'm worried about saving fuel. Morons.

 

Edited by Daryl RS
  • Like 3

Share this post


Link to post
Share on other sites

Afm should be "optional"

  • Like 2

Share this post


Link to post
Share on other sites

Like I said, optional. If it ere an add on no one would get it.

Share this post


Link to post
Share on other sites
"Equipped with Cylinder Deactivation for saving fuel"

 

Yea because when I drop 75k on a car with over 600hp I'm worried about saving fuel. Morons.

 

You honestly think GM wants to install that trash on its vehicles? Thank the feds for sticking their noses where they have no business being. GM like the rest has CAFE targets to meet.

  • Like 2

Share this post


Link to post
Share on other sites

Doesn't matter if they want to or not, there are still better ways to get fuel savings. AFM does nothing from my experience besides over complicate the engine. If they don't "want" to use it they sure do brag about the garbage enough. It's about as bad as having start/stop technology. For god sake just leave the damn thing alone. It's a V8 it's not going to get amazing fuel mileage no matter what garbage anyone installs on it.

 

Edited by Daryl RS
  • Like 1

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

  • Similar Content

    • By jaylin
      Hi everyone, I have been working on a 1997 Chevy 1500 WT.   I just happened to be working under the dash and noticed that the green wire that goes into the firewall harness connection was disconnected.  Does anyone know what this green wire is for? (please refer to photo below) I looked at the wiring diagram and it looks like it goes to the MAF which I think is for the speedometer operations.  Now my second question is, if it is for the MAF where should I try to reconnect.  I obviously can't get it back into the bulkhead.  Can I bypass the bulkhead and run a jumper wire?
      I would be appreciative for any help.
      Thank
      Jaylin

    • By BrooklynBowTie
      What’s the cheapest most efficient 3/5, 4/6 lowering kit or drop for a 2014 Silverado crew cab standard bed 2wd 5.3???
    • By Austen Colvin
      I was wondering what a good swap would be.  I have the stock 5.3 but I want some umph. I travel for work and still need gas mileage but I have hit a dead end in research. Can anyone help me?  
    • By Gorehamj
      John Goreham
      Contributing Writer, GM-Trucks.com
      9-11-2019
       
      General Motors has announced that NHTSA is mandating a safety recall for the following vehicles:
      2014-2018 Chevrolet Silverado and GMC Sierra Pickups (1500 / 2500 / 3500) 2015-2018 Chevrolet Suburban, Tahoe, GMC Yukon vehicles  2015-2017 Cadillac Escalade  
      NHTSA reports that the amount of vacuum created by the vacuum pump may decrease over time. The group says that as the vacuum level drops, the brake assist decreases, and that this increasing braking effort, extending the distance required to stop the vehicle, thereby increasing the risk of a crash. This new recall covers 3.4 million vehicles. 
       
      The Problem: The brake pump uses engine oil to lubricate itself. If the pump becomes clogged with engine oil sludge the units ability to create vaccum is diminished over time. As a result, braking force and ability also drops. The issue is usually accompanied by a "Service Brake Assist" warning message in the dash. 
       
      The Fix: GM will reprogram the computer that controls the secondary brake assist pump. The secondary pump will now activate at lower speeds and different situations quicker to compensate for any lost output from the main pump. Since the pumps are not failing, GM has decided not to replace them.
       
      GM's number for this recall is N192268490. In compliance with federal law, GM will notify owners, typically by snail mail. GM says that its dealers will reprogram the Electronic Brake Control Module. However, GM has not yet provided a notification schedule. Owners may contact Chevrolet customer service at 1-800-630-2438, Cadillac customer service at 1-800-458-8006 or GMC customer service at 1-800-462-8782.
       
      If you own one of these vehicles and wish to check to see if your vehicle is included (or not) you can do so at this link immediately.
       
      As with every safety recall, customers will not be charged by GM for the needed repairs or modifications. 
       
      NHTSA's public information on this issue indicates that many accidents have been reported to NHTSA including some with injuries. This recall is the result of a NHTSA investigation that lasted nearly a year. In its investigation report, NHTSA noted the following details about the problem:
       
       
    • By David Acosta
      Theft deterrant light comes on, airbag light comes on, and speed odometer going crazy. All of my gauges basically go crazy on my cluster after 2 minutes of driving. I want to say its the body control module but I also think its the HMI. I need help with this issue. Do i order a new BCM and have it snet in to get programmed to my VIN or take it to the dealer and 
  • Recently Browsing   0 members

    No registered users viewing this page.

  • Forum Statistics

    210,751
    Total Topics
    2,259,411
    Total Posts
  • Member Statistics

    181,818
    Total Members
    8,960
    Most Online
    Amy-lynne Piper
    Newest Member
    Amy-lynne Piper
    Joined
  • Who's Online   56 Members, 0 Anonymous, 1,097 Guests (See full list)

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.