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C6 Corvette

Take Control of Your 2008 Corvette’s NPP Exhaust

by Keith Cornett on September 12, 2007

One of the new options available on the 2008 Corvettes is the NPP Performance Exhaust. The exhaust features two ports on each side with one port on each side that remains closed by a butterfly valve while driving “normally” (a term loosely applied). When the driver demands more the closed valves spring wide open and unleashes the full volume from the 6.2 Liter LS3 V8. Corvette people dance to a different drum though and the first mod that an owner does to his NPP-equipped Corvette is pull the fuse on the butterfly valves which sets them open all the time. Enter Sunset Orange Creations. Recognizing the need for customization, they created the NPP/Z06 Exhaust Commander, the first RPM adjustable Bi-mode exhaust controller for the C6 and Z06 Corvette equipped with the NPP bi-mode exhaust. Using the Commander, you can set the butterfly valves to open at either a predetermined RPM or you can set them to full open. The commander works by tapping into the vacuum control solenoid to open and close the butterfly valves. Another connection is made with the Tachometer signal and a RPM control unit allows you to customize at what RPM the valves open. Really cool is the wireless remote that can be used to switch instantly between your predetermined RPM open setting and fully open setting. Sunset Orange Creations says the unit is 95% plug and play and installation instructions with detailed photos are provided. These kits work for all Z06, NPP and retrofitted NPP/Z06 Exhaust systems. The NPP Exhaust Commander is offered for $175 with free shipping in 48 states. For more information, visit Sunset Orange Creations.
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Sunset Orange Creations Related:
2008 Corvette Wheel and Exhaust Photos Technorati Tags:
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Most of the major car magazines are now hitting the streets with their 2008 Corvette test drive articles and while exciting at first, once you’ve read a couple of them there are really no surprises left. So it wasn’t with any great enthusiasm that I clicked over to Motor Trend Magazine for their “first test drive” article about the 2008 Corvette. I read the article, which as always is very well written and entertaining but it was the images that are the most memorable part of this story. Check out this beautiful Velocity Yellow Z51 Corvette Coupe and then tell me I am wrong.

2008 Velocity Yellow Corvette Coupe 2008 Velocity Yellow Corvette Coupe 2008 Velocity Yellow Corvette Coupe
Photo Credit: David Freers
Some of the best automotive photographers work for the major magazines like Motor Trend, Car and Driver and Road and Track. I wonder when a photo shoot assignment comes up with Corvette as the subject, are they just as excited about taking the pictures as we are about seeing them? Click here for the Motor Trend 2008 Corvette test drive and then make sure you click here for the photo gallery. You won’t be disappointed with either offering.
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Motor Trend Related:
Motor Trend Takes Us Inside the Corvette’s LS3 V8 Technorati Tags:
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Earlier this week we posted a photo of what turned out to be a festival car for the Allstate 400 at the Brickyard. The Yellow Corvette Convertibles were decorated very lightly with some graphics and the race logo on the doors. Today we received the official photos and it turns out that a White Corvette Z06 will be handling the Pace Car duties. White Z06 Corvettes were only made for the 2007 Ron Fellows Signature edition, so this is may be a one-off version prepared for the Brickyard 400 at the Indianapolis Motor Speedway. Interestingly, with its LS7 505 hp V8 engine, this Corvette is more than able to hang with the NASCAR racing vehicles it was destined to pace.

Corvette Z06 Allstate 400 Pace Car Corvette Z06 Allstate 400 Pace Car

Credit: IMS Photos by Shawn Payne
The Allstate 400 Corvette Pace Car features a red hood (Crystal Red Metallic?) with a white Chevy bowtie logo and red and blue checkerboard design on top of the white exterior on the sides. Logos tastefully grace the doors and the official safety lights are installed on the hardtop. Chevy Day at the Brickyard on Friday will kickoff the weekend of racing. Practice and qualifying is Saturday, July 28th and the race will be held on Sunday, July 29th beginning at 2pm.
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Indianapolis Motor Speedway Related:
Over The Fence: Corvette to Pace 2007 Allstate Brickyard 400
Corvette Convertible to Pace Indianapolis 500
Corvette to Pace 2007 Daytona 500 Technorati Tags:
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Motor Trend Takes Us Inside the Corvette’s LS3 V8

by Keith Cornett on July 24, 2007

LS3/LS2 Comparison GraphMotor Trend has a nice write up about the LS3 with the focus on how engineers were able to wrangle an additional 30-36 with the LS3 compared to the LS2 Corvette engine. The article goes point by point though the LS3 V8 showing with illustrations how each component works and how the slight modifications play their role in generating more horsepower and torque over the LS2. The article concludes with the following:

The result of these changes and more is in increase in peak output rise from 400 hp/400 lb-ft to 430/424 or 436/428 with the low-restriction dual-mode exhaust system. Fuel economy is expected to remain unchanged (though changes in the way EPA numbers are calculated will make it seem as though economy has worsened). There is still no guzzler tax, the car runs on regular fuel, and emissions are even improved-by 40 percent in NOx and 12 percent in hydrocarbons. The LS3 is even more efficient to manufacture. It’s a true win-win-win situation.
For more on the LS3, visit Motor Trend
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Motor Trend Related:
MTI Dynos a 2008 Z51 Corvette; 2007 Owners Cry
LG Motorsports Dynos the LS3 2008 Corvette Technorati Tags:
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Maybe through the fence is a better way to describe how we came across this photo of the Corvette Pace Car Festival Car for the Allstate Brickyard 400. IndyAndy had a chance to visit the Indianapolis Motor Speedway earlier this month when he spied these Velocity Yellow Corvette Convertibles in Gasoline Alley. The Corvettes feature the Allstate Brickyard 400 logos as well as the horizontal graphics that start at the front tires and sweep down the side. A graphic that appears to be the Chevrolet Bowtie graces the hood.

Corvette Convertible Pace Car
Photo Credit: IndyAndy
This marks the third major auto race to be paced by Corvette in 2008. Previous appearances include the Daytona 500 and the Indianapolis 500. The Brickyard 400 festivus kicks off on Friday, July 27 with Chevy Day at the Brickyard. Practice and qualifying is Saturday, July 28th and the race will be held on Sunday, July 29th beginning at 2pm.
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IndyAndy’s Indy Journal
Allstate 400 at the Brickyard Related:
Corvette Convertible to Pace Indianapolis 500
Corvette to Pace 2007 Daytona 500 Technorati Tags:
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MTI Dynos a 2008 Z51 Corvette; 2007 Owners Cry

by Keith Cornett on July 16, 2007

2008 Z51 Corvette on the DynoLast week we shared the dyno numbers from an LG Motorsports test of an automatic 2008 Corvette. This week, Corvette tuner MTI puts another LS3 2008 Corvette to the test and the numbers we see are even higher. MTI’s test vehicle is a bone stock 6-speed manual 2008 Corvette with the Z51 package and new NPP Dual Mode Exhaust. Only 6 miles were on the odometer at the time of the test. According to Zach@MTI, the Corvette made an additional 50 rear wheel horsepower over the last 2007 stock model tested. Results for the 2008 Corvette finished with a Max Rear Wheel Horsepower of 395.3 and Max Torque was 384.5. LG Motorsports test of their Automatic 2008 was 370.8 Rear Wheel HP and 363.8 Max Torque. Unfortunately, all these dyno tests on the new LS3 Corvettes are having an unintended consequence for 2007 Corvette owners, many of whom now seem to be experiencing buyer’s remorse.
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CorvetteForum.com Related:
LG Motorsports Dynos the LS3 2008 Corvette
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LG Motorsports Dynos the LS3 2008 Corvette

by Keith Cornett on July 11, 2007

Lou Gigliotti of LG Motorsports loves to get his hands on the new stuff and there’s nothing newer than the 6.2 liter LS3 V8 engine in the 2008 Corvette. Last week, Lou had delivered to his Dallas-based tuning shop a Red 2008 Corvette with an automatic A6 paddle shift transmission. The Corvette had just 29 delivery miles on it. Totally stock with no changes, the LS3 dyno’d at 370.8 rear wheel hp and 363.8 rear wheel torque. Click below for the graph.

LS3 Dyno Sheet 2008 Corvette LS3 Engine
Following the thread at CorvetteForum.com, Lou has been experimenting with different setups on the LS3, swapping cams, headers and other tuner tricks to maximize performance. With his LG G7X-4 Cam, LG Pro Long Tube Headers, and a K&N Air Charger, the Corvette dyno’d at 484 rwhp and 440 rwtq. That’s Z06 territory, folks! Lou also has an LS3 with a 6-Speed manual transmission coming in this week so we are real interested to see what the bone-stock dyno will be for that Corvette.
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CorvetteForum.com Related:
The Heart of the Beast: The 2008 Corvette’s LS3 6.2L V8 Technorati Tags:
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Final 2007 Corvette Production Numbers

by Keith Cornett on June 30, 2007

With the conclusion of the 2007 Corvette Model Year, the Bowling Green Assembly Plant has released the final production numbers for the year. Corvette production for 2007 totaled an astounding 40,561 Corvettes. This is the most Corvettes produced since the introduction of the C4 model in 1984 and only the sixth time in 54 years that Corvette production crossed the 40,000 unit threshold. As with the last few years, Corvette owners still prefer Red Corvettes. The two shades of red, Victory and Monterey, combined for 28.9% of total production. However, the single most popular color for the third straight year was Black, accounting for 23.5% of Corvettes. Second place was Victory Red at 16.5% and Machine Silver third at 13.6%. Atomic Orange, the new color for 2007 that replaced Daytona Sunset Orange Metallic finished at 3,790 Corvettes or 9.3% of production nd more than doubled DSOM’s 1,729 units in 2006. The percentages of Corvettes with orders for the 6-Speed Manual, Paddle Shift Automatic and Z51 6-Speed Manual are relatively unchanged from 2006. I expected to see a decrease in true manual 6-Speeds in favor of the Paddle Shift as it has the Automatic modes, but that was not the case. The MN0 Paddle Shift had an option penetration of 55.3% vs 2006′s 56.1%. Here are the final 2007 Corvette Production Numbers:

Corvettes Produced Amount Percent    
         
Coupes 21,484 53%    
Convertibles 10,918 27%    
Z06 Hardtops 8,159 20%    
  _______ _______    
Total 40,561 100%    
         
         
Exterior Colors Total Coupe Convertible Z06
         
10U Artic White 2,387 1,312 676 399
19U Le Mans Blue 3,854 2,243 784 827
41U Black 9,526 4,908 2,091 2,527
45U Velocity Yellow 3,755 1,672 843 1,240
67U Machine Silver 5,518 2,887 1,589 1,042
74U Victory Red 6,708 3,556 1,701 1,451
80U Monterey Red 5,023 3,157 1,866 0
83U Atomic Orange 3,790 1,749 1,368 673
         
         
Convertible Top Colors Total      
         
35T Cashmere 2,813   2,813  
37T Storm Gray 979   979  
41T Ebony 7,126   7,126  
         
         
Interior Colors Total Coupe Convertible Z06
         
02I Cobalt Red 3,071 1,066 622 1,383
19I Ebony 24,267 13,529 5,334 5,404
31I Light Cashmere 7,359 4,135 3,224 0
84I Light Titanium (Gray) 5,864 2,754 1,738 1,372
         
         
Transmissions Total Coupe Convertible Z06
         
MN6 6-Speed Manual 12,670 3,433 1,078 8,159
MX0 6-Speed Auto Paddle 22,422 14,093 8,329 0
MZ6 6-Speed Manual w/Z51 5,469 3,958 1,511 0
         
         
Wheels Total Coupe Convertible Z06
         
P4A Painted Alum Indy Car 500 0 500 0
QG6 Painted Aluminum 7,500 6,422 1,078 0
QG7 Polished Aluminum 3,461 2,452 1,009 0
QL9 Z06 Polished Aluminum 3,459 0 0 3,459
QX1 Gray Painted Aluminum 1,091 945 146 0
QX3 Chrome 19,850 11,665 8,185 0
Q10 Z06 Base 1,457 0 0 1,457
Q44 Z06 Painted 545 0 0 545
Q76 Z06 Chrome 2,698 0 0 2,698
         
         
Other Options Total Coupe Convertible Z06
         
Z51 Performance Handling Pkg 13,696 8,966 4,730 0
C2L Dual Roof Pkg 3,558 3,558 0 0
F55 Magnetic Select Ride 5,619 2,777 2,842 0
UV6 Heads Up Display 22,948 13,022 9,926 0
U2K XM Satellite Radio 28,897 12,220 9,789 6,888
UE1 OnStar System 18,074 6,935 6,488 4,651
U3U Navigation Radio 20,653 7,661 6,849 6,143
R8C Museum Delivery 1,104 402 288 414
         
         
Export Units Total Coupe Convertible Z06
CV3 Mexican Export 34 23 11 0
MAE European Export 1,327 522 87 718
Z49 Canadian Export 860 286 256 318

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Bowling Green Assembly Plant via CorvetteConti.com Related:
Final 2006 Corvette Production Numbers Technorati Tags:
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Photo: 2008 Crystal Red Metallic Corvette

by Keith Cornett on June 28, 2007

Just last night I was hoping to see a 2008 Corvette with the new 89U Crystal Red Metallic exterior and this morning our Corvette Muse named Conti came through again:

2008 Corvette in Crystal Red Metallic
Now this color will be a hit because it’s not that big a leap from the color it replaced, Monterey Red. Besides all Corvettes are Red, right?
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CorvetteConti.com Related:
New Paint Chips Unveiled for 2008 Corvette
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Photo: 2008 Jetstream Blue Metallic Corvette Z06

by Keith Cornett on June 27, 2007

CorvetteConti.com brings us the new 2008 Z06 Corvette in Jetstream Blue Metallic. The color already has its own acronym: JSB, but since its the successor to LMB I guess it should. Reaction on the forums is mixed with many taking a wait-until-I-see-in-person approach.

2008 Corvette in Jetstream Blue Metallic
Personally, I like the new color as it harkens back to the days of Nassau Blue, one of my personal favorites. Jetstream Blue will never be a hit though. GM will churn out a several thousand per model year and then will see a return back to a darker blue in a couple years from now. We’re also still waiting to see an 89U Crystal Red Metallic Corvette. As the 2008 Corvette production kicked off this week, it shouldn’t be too much longer until those photos hit.
Source:
CorvetteConti.com via DigitalCorvettes.com Related:
New Paint Chips Unveiled for 2008 Corvette
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