The 58th Rolex 24 at Daytona, the first round of the 2020 IMSA WeatherTech SportsCar Championship season, saw the first race for the new Corvette C8.R, the participation of an all-female driver line-up, 2019 NASCAR champion Kyle Busch’s first start in a 24-hour race and Ben Keating at the wheel of two different cars.
A NOTEWORTHY DEBUT FOR THE NEW CORVETTE C8.R
The #3 Corvette C8.R finished the first 24-hour race of its career in fourth place in GTLM (the equivalent of LMGTE Pro at the 24 Hours of Le Mans). Drivers Antonio García, Jordan Taylor and Nicky Catsburg encountered zero problems with the car and completed 785 laps (nearly 5,000 kilometers). Unfortunately, the same cannot be said of the #4 Corvette C8.R of Gavin-Milner-Fässler. As the car was in the top 5 in its class going into the ninth hour, an oil leak caused the car to return to its garage. The leak was found to be in an area that forced the mechanics to remove the engine for repair and the work took almost nine hours. The #4 was then able to hit the track again and finished the race in 36th place.
Much like the 24 Hours of Le Mans, the 24 Hours of Daytona is an extremely challenging race. To make it to the checkered flag with an all-new car is already a major accomplishment for Corvette Racing. The American team’s next stop is the 6 Hours of the Circuit of The Americas on Sunday 23 February in Austin, the fifth round of the 2019-2020 FIA World Endurance Championship season.
AN ALL-FEMALE DRIVER LINE-UP
All-female driver line-up Christina Nielsen, Katherine Legge, Tati Calderon and Rahel Frey shared GEAR Racing powered by GRT Grasser’s Lamborghini Huracan GT3 in the GTD class, but the car was forced to retire after a fire.
KYLE BUSCH ENJOYS HIS FIRST ENDURANCE RACE
2019 NASCAR champion Kyle Busch took the start in his first Rolex 24 at Daytona at the wheel of the AIM VASSER SULLIVAN team’s Lexus RC-F GT3. Along with teammates Parker Chase, Jack Hawksworth and Michael de Quesada, Busch finished 26th overall and ninth in the GTD class. The American driver pulled off a double and a triple stint without the slightest mistake and said after the race he really enjoyed the experience and hopes to return for the overall win.
BEN KEATING DOUBLES DOWN
Ben Keating participated in his 10th Rolex 24 at Daytona at the wheel of not one but two cars: the #52 ORECA 07 fielded by PR1 Mathiasen Motorsports in the LMP2 class and the #74 Mercedes AMG-GT3 fielded by Riley Motorsports in GTD. Both cars crossed the finish line, the #52 ORECA 07 in 10th place overall and second in its class two laps from the winners, and the #74 Mercedes AMG-GT3 in 29th place overall and 11th in its class. This was the fifth time Keating participated in the race with two different cars.
Source: 24H LE MANS
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.
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.
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?
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
Sports car racing fans have come to know the sound of Corvette Racing’s menacing V8 engines as one of IMSA’s most unmistakable soundtracks. The punch to the chest delivered by the Corvette C7.R through the 2019 season, and all of its predecessors dating back to the program’s debut in 1999, was as unique as it was thrilling.
It makes the brand’s greatest shift with its mid-engine C8.R (pictured above) — which debuts in competition this week at the Rolex 24 At Daytona, featuring a fresh V8 motor with an entirely different voice — a new experience for Corvette fans. Thanks to the move to a flat-plane crankshaft in the 5.5-liter naturally-aspirated powerplants, the C8.Rs strike the ears with a higher pitch that, in typical Corvette Racing fashion, is unlike anything else in the field.
Which exhaust note sounds better? Take a listen to the C8.R from testing at the Roar Before The 24, and from a C7.R during December Daytona testing in 2016, and you decide.
Original Source: Marshall Pruett for Racer.com
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