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Exclusive! C8.R Corvette 5.5L DOHC V-8 Pics and How the Flat-Plane Crank Alters Its Iconic Sound

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There’s A New Engine In The C8.R Corvette, And It Sounds Nothing Like Its Predecessor.

They say beauty is in the eye of the beholder, and although that’s true, it can also be in the ear of the listener.

Since the Corvette first hit the streets back in the 1950s, it was imbued with the beautiful and nearly magical sound of V-8 performance. It was a deep, bass-filled rumble that just oozed a feeling of power. Over the years, the sound emanating from Corvettes, both on the street and at the track, had a distinctive note that became synonymous with the car. When the Corvette moved to the LS1 in 1997, the firing order was tweaked a bit, and although the sound did change, it still had that deep rumble that we all love.

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Chevrolet is super secretive of its new mill for the C8.R, so much so that it covered up the back hatch to keep out prying eyes. About all the team will say is that it’s a 5.5L DOHC V-8 fitted with a flat-plane crank. Power numbers are limited to 500 hp and around 475ish lb-ft of twist, but that’s all it will say. In fact this picture is about as close as you’re going to get to seeing the new C8.R engine.

But the only thing constant in the world is change. For the C8.R, Chevrolet Racing really changed things up with its new mid-engine marvel, but it wasn’t the engine placement that ended the car’s iconic sound signature. It was the engine itself. Gone is the deep baritone exhaust note, replaced instead with a high-pitched Ferrari-like sound. Think puberty in reverse. And although we love the sound of a wound-out Ferrari or other Italian supercars, having that pitch emanate from the back of a Corvette is something that will be hard to get used to. We’re not saying the sound is bad—it’s actually pretty badass—but it’s not even close to the sound signature we’ve come to associate with Corvettes.

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The real culprit here isn’t the new 5.5L DOHC V-8 that Chevrolet moved to. Instead, it was the choice to go with a high-revving flat-plane crank. This drastically changed the firing order of the engine and eliminated the classic American V-8 sound that’s typical with the firing sequence of a traditional cross-plane crank. But we know what you’re thinking: “Well, this is just the race car, so I’m going to be able to get my V-8 rumble fix from the production car!” Well, yeah, for now. You see, for Chevrolet Racing to run this new DOHC flat-plane crank mill in the C8.R, it has to, according to the rules, run a similar engine in at least 300 production cars. So does this mean that an eventual C8 Z06 variant will lose its iconic exhaust note?

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Chevrolet Racing tried hard to give race fans a great-sounding engine. And although the new 5.5L engine in the C8.R does have a unique sound, it’s nothing like we’ve grown accustomed to.
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New Corvette Had ‘Reason to Go Back Out’ After Long Delay

Corvette “had reason” to take its No. 4 car back out on track after lengthy repair…

The “tough lessons” of the No. 4 Chevrolet Corvette C8.R’s tumultuous Rolex 24 at Daytona debut gave Corvette Racing confidence going forward with its new car, according to team manager Ben Johnson.

The silver No. 4 Corvette spent eight hours in its garage during the IMSA WeatherTech SportsCar Championship season-opener after a cracked bell housing resulted in an oil leak.

Having pitted at around 11 p.m. the car eventually returned to the track close to 8 a.m. but it still managed to be classified as a finisher, albeit 327 laps behind the GTLM class winner.

While not divulging the extent of the oil leak and associated damage, Johnson explained why the team kept its car in the garage for so long.

“To fix the problem we had to move the engine back,” he told Sportscar365.

“We tried to do it with the engine installed to expedite it but then we realized that if we wanted to get it back on track, we had to take time to take the engine out and put it back in.

“We just took our time to make sure that there was nothing else. At that point, we were no longer in contention, but we had reason to go out and just understand where else the car may have issues.

“It was just kind of a test session after that.

“I think we will go back and disassemble the whole car. We have some issues to address with the oil leak.”

Oliver Gavin, who shared driving duties in the No. 4 with Tommy Milner and Marcel Fassler, said the Corvette crew “wanted to be methodical” about its repairs which added to the length of time it spent in the garage.

The Englishman suggested that the car was starting to show signs of promising pace that it could have taken through the night had the leak not occurred.

“It was really tough on the guys, eight hours of working from midnight until eight in the morning, it was crazy,” Gavin told Sportscar365.

“As soon as that happened, we knew that our day was done and that we wouldn’t be challenging. It was a shame because up to that point, our car had just started to come along.

“It wasn’t super strong right at the start, but we were gaining on it as we went through the race. Could we have been in the mix at the end? Who knows. But there was a lot that we’ve learned from this.

“As a team, we figured a lot of stuff out today. Testing is great but you really see exactly where you are when you come to a race and see where your competition is.

“We’ll take that away and process the data to see how we can make ourselves and the car better for Sebring.”

The No. 3 Corvette fared better than its sister car with Antonio Garcia, Jordan Taylor and Nicky Catsburg bringing home a fourth-place class finish on the lead lap.

Johnson said that this car’s run wasn’t entirely straightforward, but it held up well enough to remain in contention for a podium heading into the final two hours.

“We had a slight clutch issue at one point, but we had fixed it after the first stop that we witnessed it, so it wasn’t a time loss,” he explained.

“But nothing held up that car specifically again.  We were really happy that all the execution, pit stops, driver changes… all things that you don’t get to test in anger until you reach the race, all went super well.”

Johnson added that the Rolex 24 has given the Corvette team confidence ahead of its next race outing at the ‘Super Sebring’ endurance racing double-header weekend in March.

“Coming away from our first race with one car on the lead lap… the issue with the oil leak is obviously very apparent, but when we looked at it we realized it’s a pretty simple fix,” he said.

“I think it raises everyone’s confidence that we can get through some of these early tough lessons and move on to Sebring in a much better spot.”

Source: Daniel Llyod for Sportscar365


Corvette Poised for Sebring WEC Return

#3 Corvette Racing Corvette C8.R, GTLM: Antonio Garcia, Jordan Taylor, Nicky Catsburg

Corvette Racing set for COTA-Sebring double FIA WEC run with C8.R

Corvette Racing looks set to contest the 1000 Miles of Sebring, in what would be the second consecutive FIA World Endurance Championship outing for the new Chevrolet Corvette C8.R.

Sportscar365 has learned that provisional plans are in place to run the Sebring WEC race alongside its two-car factory GT Le Mans class program in the Mobil 1 Twelve Hours of Sebring the following day.

It would come as one of the prerequisites from the ACO, which has stipulated that the Pratt & Miller-run team must run in at least two regular-season WEC races in order to be guaranteed a pair of GTE-Pro entries for the 24 Hours of Le Mans.

The team ran the Shanghai WEC race in 2018 in addition to Sebring last year with its previous-gen Corvette C7.R.

While declining to comment or confirm on any WEC plans beyond its COTA entry, Corvette Racing program manager Doug Fehan said that it’s been their intention to run two regular-season races in the 2019-20 WEC season.

“Right now, that’s the plan but we’re running down a road,” Fehan told Sportscar365.

“We haven’t refined what exactly that plan is going to be. I couldn’t give you every detail and widget.

“We’ve been busy for a couple of years trying to race and design, build and develop the new car. This adds to the challenge of all of that.

“I think most people would understand that we don’t have it completely defined yet.

“It’s a case of dealing it in an orderly fashion.

“We can’t become overwhelmed too much with what’s going on down the road when we have to focus on what we need to accomplish [in Daytona] in a couple of weeks.”

While set to give the new mid-engined GTE contender its competition debut in the Rolex 24 at Daytona later this month, the car’s second race will come just four weeks later at Circuit of The Americas, with a single entry having been submitted for the WEC replacement round.

Fehan said details on that program, including drivers, have yet to be determined.

He explained the reason for doing the additional WEC races is to “try as best we can” to support the globe-trotting championship.

“We understand the value that has to the sanctioning body and the value to the global fan base,” he said.

“We know it’s important but they also know the business side of it that prevents us from doing both things. They get that.

“I think they also appreciate how hard we’re trying to make all of the accommodations we can to keep the ball moving down the field. 

“It’s not easy for us and they know it’s not easy for us and they appreciate that.”

No Issues in 2019 ‘Super Sebring’ Endeavor

Fehan said the team faced no issues in its double-duty endeavor at Sebring last year, in what was only the second-ever time the team raced three cars between two different series on the same weekend. 

In addition to its over-the-wall crew and several other staff, drivers Antonio Garcia, Jan Magnussen and Mike Rockenfeller took part in both Friday’s eight-hour WEC race and the around-the-clock IMSA enduro the day later.

“That worked out great,” Fehan said. “We were lucky because we had enough equipment.

“It’s not like you can piggyback what you have set up. You’ve got to have a completely additional set of stuff.

“Between stuff that we had in stock and stuff that we had for the Cadillac program, we had enough in place.

“That system is getting better and we learned from that on all the things we did right and all the things that we know we could improve upon.”

Source John Dagys; SportsCar365


The 2020 Chevrolet Corvette is Here! And the BEST C8 Content is at MotorTrend

The 2020 Chevrolet Corvette is one of the most anticipated vehicle reveals of the century so far–are you as excited as we are? For the first time, the production-spec Corvette will be a mid-engine car, opening possibilities to a much higher level of performance than we’ve ever seen from the ‘Vette. But you know all that. You’re here for world-class, comprehensive 2020 Corvette coverage and photos you can only find at MotorTrend.

So be sure to check back frequently, as we’ll be adding Corvette content after the C8’s reveal. Enjoy!

Motor Trend links:

CORVETTE CONVERTIBLE

OMG NEW CORVETTE

C8 ENGINE AND TECH

FUN STUFF

Original source: Motor Trend


2020 Corvette Stingray Convertible in Shadow Gray on Display at GM’s Detroit Headquarters

Photo Credit: Kevlar Bike- Corvette Forum

Inside General Motors’ headquarters known as the Renaissance Center in downtown Detroit is a large turntable that is currently featuring all eight generations of the Chevrolet Corvette. The new eighth-generation iteration of America’s Favorite Sports Car is a 2020 Corvette Stingray Convertible painted in Shadow Gray Metallic.

A Youtuber named portcarlingboats captured a minute of video as the new C8 Convertible spins by him on the turntable.

The visible cues on this Corvette show that it’s a non-Z51 model but it’s loaded with some great looking options that include the two-tone Natural and Black seats, Spectra Gray Trident Wheels and red brake calipers. We also prefer the bright Corvette emblems to the the darker versions on this exterior.

From portcarlingboats via YouTube:

Corvette C8 convertible on display at the GM Headquarters in Detroit Michigan on Sat Nov 23 2019; part of 8 generations of corvette convertibles on a rotating display from 1953 to today; C8 supercar, exotic car, european sports car; this is the car that will change the automotive for years to come; can’t wait for the all electric version to come- No sound

On his original post on the Corvette Forum, Kevlar Bike tells us he is Canadian and that the C8 Corvette on display inside the GM’s HQ is the closest C8 Corvette on display so he made the trip to check it out.

Shadow Gray is one of those colors that change drasticly when viewed in the direct sunlight and the lightings inside the RenCen does nothing to show-off the varying hues within. As a comparision, here is a quick walkaround of a Shadow Gray Metallic C8 at the NCM earlier this year from CorvetteBlogger contributor Jeremy Welborn:

Source:YouTube via MidEngineCorvetteForum.com


Most Expensive 2020 Chevy Corvette Convertible Costs $113,955

Configurator with pricing info is up, so we’ve decided to max it out.

We’ve been periodically checking Chevy’s website for the Corvette C8 Convertible configurator ever since it went up at the beginning of October to see if there’s pricing available. You can finally know how much the desired spec is going to set you back as the configurator now has all the pricing details included. Much like we did with the coupe a few weeks ago, we’ve decided to max out the online builder in an attempt to find out how much a fully loaded Stingray Convertible costs.

We’re not going to go through each and every option as we did in the previous post because most of them are identical. It’s worth pointing out the convertible commands a $7,500 premium over the coupe and it starts at $67,495 for the entry-level 1LT. Go for the better-equipped 3LT and the price jumps to $78,945, and then you can add this $995 Long Beach Red Metallic Tintcoat paint and a dual racing stripe also priced at $995.

The most expensive options available for the C8 Convertible are the $5,000 Z51 Performance Package and the $4,850 Grounds Effect Kit, but on top of these, you can also add the $2,095 grille insert and $1,145 side mirror caps both finished in visible carbon fiber. Another pricey option is the $2,695 wheel set measuring 19 inches up front and 20 inches at the rear, with a five-spoke design and a Performance Pewter-painted finish.

If you truly want to go all out with the configurator, Chevy will be more than happy to provide you with a two-piece leather travel bag set for $1,450 as well as indoor and outdoor car covers each priced at $460. Inside, a carbon fiber trim adds $1,500 to the final bill, while the Competition Sport bucket seats are an additional $500.

With all the boxes ticked, you’re going to end up with a 2020 Corvette Stingray Convertible that costs $113,955, plus an additional $110 worth of dealer-installed

As you’re probably aware by now, production of the C8 has been delayed until February 2020, so it’s going to be a long wait to park the new Corvette in your garage.

Hit the source link below to play with the configurator and see if you can beat our price.

Hit the source link below to play with the configurator and see if you can beat our price.

Original source: Adrian Padeanu; Motor1


C8 Corvette ZR1 to Get Hybrid Twin-Turbo DOHC V-8 With 900 HP!

Halo model will also be the first-ever AWD Corvette

MotorTrend’s rendering of what a C8 Corvette Z06 could look like

Back in August, we exclusively reported the upcoming mid-engine Chevrolet Corvette Z06 would feature a twin-turbo flat-plane-crank dual-overhead-cam V-8 based on the C8.R race car’s engine. Now, we can report from an even higher-placed source that the range-topping C8 Corvette ZR1 will add a performance hybrid system to boost it to 900 hp.

Rumors of a hybridized C8 have been flowing for quite some time, but now we have exclusive confirmation from a senior official at GM. The ZR1 will build on the Z06’s all-new engine with a performance- (not fuel economy-) oriented hybrid system to fill in torque gaps and increase total output to an even 900 hp.

Our source wouldn’t elaborate on the engineering details, so we’re still unclear whether street cars will share the C8.R’s 5.5-liter displacement, which is unusually large for a flat-plane engine and would likely vibrate too much for customers’ liking. Past rumors have suggested displacement ranging from 4.2 liters to 5.5 liters.

At a minimum, a hybrid system would sandwich an electric motor between the engine and transmission to bolster output. We’ve heard previously, though, the somewhat small frunk in the base C8 Stingray is protecting space for a pair of front-mounted electric motors which can both increase performance and, more critically, perform active torque vectoring to complement the rear axle’s electronically controlled limited-slip differential. This first-of-a-kind all-wheel-drive ZR1 could see major benefits in handling and the ability to put down power while exiting corners. This is a strategy that’s been employed to great effect on other hybrid supercars like the Porsche 918 Spyder.

Naturally, electric motors, a battery pack, inverters, and wiring will add substantial weight to the car, which is why it all needs to add enough power to balance things out. The big question is where Chevrolet will place the battery, which it will want to mount as low as possible to keep a low center of gravity. Other mid-engine hybrids mount it in the firewall between the engine and the seats. It’s also possible it could be mounted in the bottom of the frunk or trunk, depending on how large it is. We expect it will be fairly small as it just needs to hold enough juice to boost the engine under hard acceleration. While some mid-engine hybrids have the ability to drive under pure electric power for short distances to meet emissions regulations in some countries and cities, we doubt this was a major concern for the Corvette team. Like the Ferrari LaFerrari, we think the ZR1 will be entirely concerned with performance, not efficiency.

Separately, our source corrected our previous speculation that the Z06, C8.R, and ZR1’s DOHC engine would share design and engineering with the Cadillac 4.2-liter Blackwing V-8. Despite declarations from top GM and Cadillac brass the Blackwing is exclusive to Cadillac, we figured there would be some shared engineering resources to save money. That’s not the case, our source says. Years ago, under a previous product plan that’s since been whittled down, Cadillac was promised an exclusive engine and got it, so GM gave Cadillac and Chevrolet separate pots of money to design two different DOHC V-8s simultaneously.

Original Source: Scott Evans for MotorTrend


Tadge Juechter and the 2020 Corvette Stingray Convertible Visit Jay Leno’s Garage

Folks, this is some of the best 55 minutes of TV you can watch!

The 2020 Corvette Stingray Convertible with Chief Engineer Tadge Juechter makes a visit with Jay Leno at his Garage out in Sunny California. During that 55 minutes, the new C8 Corvettes are discussed and dissected as only Jay can do, and then he and Tadge go for a ride where the Stingray is tested on the streets.

Jay was at the reveal of the 2020 Corvette Stingray Coupe and had the opportunity, albeit limited, to be among the first to drive the new C8 Coupe. This taping of the show with the Convertible Stingray happened roughly 1 week after the Convertile’s reveal at Kennedy Space Center on October 2nd. The car is the same Sebring Orange Convertible that was part of the West Coast reveal that occurred on the same night.

Here’s a pretty good exchange between Jay and Tadge on the C8 Corvette’s starting MSRP of $60,000 (for the Coupe):

Jay: “I think its fantastic and of course the price point is what really freaks people out. I think people were just stunned by that as much as they are by the styling…it was like, What? How can you make it…?”

Tadge: “I think you brought it up before, that would have been a different business strategy, and it would have been a safer business strategy to keep the old car in production, move this one to a higher price point and if you starting a sportscar company from scratch and you wanted to cover all those price points you might do that. But as we were developing this car, we thought ‘you know what, we can go all in’”.

Jay gets an exclusive first drive of the highly anticipated 2020 Corvette Stingray Convertible with Executive Chief Engineer Tadge Juechter.

Watch Full length video below,

Originally written by Keith Cornett; Corvette Blogger