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Watch a Track-Day Comparison Between the Shelby GT500 and C8 Corvette

Both cars retail for about $81,000, but one is a lot more accessible.

SPEED PHENOM ON YOUTUBE

If you’ve got $80,000 to spend and want an American high-performance car, now’s a pretty good time to be in the market. In addition to tire-shredding stalwarts like the Camaro ZL1 and Challenger Hellcat, Ford and Chevy have recently launched high-profile, track-ready sports cars. And thanks to a new video by Speed Phenom, we now know how they directly compare on track.

Naturally, we wanted to do this comparison ourselves. But the GT500 wasn’t ready during our Performance Car of the Year competition when we had an early C8 to test. And now that both cars are on sale, stay-at-home orders and track closures mean we’ll have to wait for an opportunity to do a full R&T comparison.

In the meantime, Speed Phenom does a good job of breaking down how they perform. With the caveat that he’s got a base model GT500 without the optional Pilot Sport Cup 2 tires, he notes that the car struggles for grip more often than the similarly-tired Corvette. It’s also less composed through mid-corner bumps, with slower cornering all around. Thanks to its massive horsepower advantage, though, it jets through straightaways.

The C8, meanwhile, benefits from serious mechanical grip. The better-balanced midship car fires through corners and has no problem putting its power down. That makes it more approachable, not surprising given that it’s the tamest version of the C8 while the GT500 is stretching the limits of the S550 platform. We’re sure to see more track-ready Corvettes soon, but for now the Stingray is a surprisingly capable start.

Mack Hogan- Road&Track


Hennessey’s twin-turbo C8 Chevy Corvette V-8 makes 643 horsepower early in development

2020 Chevrolet Corvette Stingray undergoes twin-turbo conversion at Hennessey
2020 Chevrolet Corvette Stingray undergoes twin-turbo conversion at Hennessey
2020 Chevrolet Corvette Stingray undergoes twin-turbo conversion at Hennessey
2020 Chevrolet Corvette Stingray undergoes twin-turbo conversion at Hennessey
2020 Chevrolet Corvette Stingray undergoes twin-turbo conversion at Hennessey

It took 30 hours for Hennessey Performance Engineering to tear apart a new 2020 Chevrolet Corvette, install twin-turbo setup, and put it back together.

It’s no surprise, then, that the twin-turbo C8 Corvette isn’t ready to be sold to customers. The engine lacks intercoolers and Hennessey hasn’t cracked the code of GM’s new electrical architecture to reprogram the ECU.

“This is just the beginning, our own car, doing R&D,” company founder and CEO John Hennessey told Motor Authority.

On Monday, the engine made 643 horsepower and 570 pound-feet of torque at the wheels on a Dynojet dyno while running just 5 psi of boost. That compares to baseline testing HPE performed on the stock car which revealed 466 hp and 451 lb-ft of torque. HPE plans to offer a 1,200-hp version of the C8, which Hennessey said could make 18-20 psi of boost.

Hennessey took delivery of an orange C8 Corvette in Detroit on March 13. He and his daughter, Emma, drove back to the performance outfitter’s Texas headquarters and performed baseline testing before the Hennessey team tore apart the car.

The orange C8 fired back to life on Friday with twin 62-mm Precision Turbos and twin blow-off valves connected to the throttle body mounted behind the catalytic converters. Both turbos are oil-cooled with twin scavenge pumps that feed back into the motor.

The system is not intercooled. Instead, there’s a methanol injection setup to keep things from getting too hot. HPE is considering where to put intercoolers. The current packaging has limited space for intercoolers without cutting into trunk space, which Hennessey does not want to do. 2020 Chevrolet Corvette Stingray undergoes twin-turbo conversion at Hennessey

Hennessey told Motor Authority his team currently can’t tune the factory ECU, but it is looking at aftermarket solutions for the engine management system. He noted it took a year for solutions to come to market for the C7 and added, “hopefully, it won’t take a year.”

Hennessey said when the turbocharged C8 was first started it didn’t throw any codes, errors, or a check engine light. “The computer seems happy with the turbos,” Hennessey noted. A check engine light did appear when the front wheel speed sensors were disconnected to put the car on the dyno, Hennessey said.

The orange C8 will used for R&D of upcoming modifications. Hennessey said he doesn’t expect to deliver modified customer C8s for at least six months, and all will have intercoolers and full plumbing.

Joel Feder for Motor Authority


Blaser leads USA Skeleton in fifth career World Cup

IGLS, Austria (Jan. 17, 2020)– Andrew Blaser (Meridian, Idaho) led the U.S. in this morning’s men’s skeleton World Cup in Igls with an 18th place finish. It was the first time Blaser has raced in Igls. Austin Florian (Southington, Conn.) and Alex Ivanov (Carlisle, Mass.) finished 26th and 28th, respectively.

This is Blaser’s World Cup debut season, and his first time racing the European tracks. Today was the fifth World Cup race of Blaser’s career, and the first time he’s qualified for the second heat. Blaser was the only North American to make the top 20 today.

“We knew it was going to be a development year for me,” Blaser said. “It was my first time in La Plagne (France), my first time in Winterberg (Germany), my first time here– I’m getting those first runs under my belt this season. It was overwhelming at first, but it’s exciting and things are starting to come together over time.”

The Igls track favors fast starters, which gave Blaser a boost today. He posted a first run start time of 5.01 seconds, which was 10th best of the field, and raced to the finish in 53.27 seconds for 19th place to qualify for the second heat. Only the top 20 athletes after the first heat are granted a second run.

“I was elated,” Blaser said.

He nearly matched his first run start time in heat two with a push of 5.02, and moved up a spot with a downtime of 53.05 seconds. Blaser finished 18th with a combined time of 1:46.32.

When USA Skeleton Head Coach Tuffy Latour handed Blaser the phone for this interview, his first reaction was, “Did my mom get Tuffy’s number?”

“This is all new to me,” Blaser said.

Latvian Martins Dukurs was today’s winner in 1:44.50. Reigning Olympic champion Sungbin Yun of Korea was a distant 0.42 seconds behind in second place with a total time of 1:44.92. Russia’s Alexander Tretiakov claimed the bronze medal in 1:44.94.

Florian and Ivanov both missed the top 20 cutoff for the second heat. Florian clocked the 22nd best start time of 5.11, and slid to the finish in 53.63 seconds for 26th. Ivanov was 28th fastest off the start with a push time of 5.17, and he maintained 28th place at the finish with a downtime of 53.74.

The women’s skeleton race is up next at 2 p.m. local time. NBC Sports and Olympic Channel will have broadcast and digital streaming coverage of the Igls races. Fans can catch all the action in spectacular high definition via NBC Sports online at NBCSports.com/Live, or through the NBC Sports app. Additional coverage will be available on OlympicChannel.com and the Olympic Channel app.

Please contact USABS Marketing & Communications Director Amanda Bird at 518-354-2250, or amanda.bird@usabs.com, with media inquiries.

Results

1. Martins Dukurs (LAT) 1:44.50 (52.34, 52.16);
2. Sungbin Yun (KOR) 1:44.92 (52.66, 52.26);
3. Alexander Tretiakov (RUS) 1:44.94 (52.53, 52.41);
18. Andrew Blaser (USA) 1:46.32 (53.27, 53.05);
26. Austin Florian (USA) (53.63, DNS);
28. Alex Ivanov (USA) (53.74, DNS):

About USA Bobsled & Skeleton
USA Bobsled & Skeleton (USABS), based in Lake Placid, N.Y., is the national governing body for the sports of bobsled and skeleton in the United States. USABS would like to thank its sponsors, suppliers and contributors for their support: BMW of North America, Under Armour, Omaze, Kampgrounds of America, BiPro, Boomerang Carnets, Hudl, Tesa Tape, PVS International, Ferris Mfg. Corp, Machintek, deBotech and Carpenter.


Proud to be an American

Bill Cook, aka, Biker Bill is a new member of the deBotech team and veteran of the United States Armed Services.  Bill joined our team roughly 3 months ago as our Maintenance/Handy Man.  A friend had mentioned this great guy that was retired but wanted a job because he was used to working.  After meeting him, it was evident that he embodied the hard-working ethics that I admire, respect and want to spread to the younger generation.  He came to work the other day proudly flying the US red, white & blue in honor and memory of SSG Adam Lynn Dikemyer, Tomb Sentinel #528. It’s guys like this that make me proud to be an American & the reason I will forever stand for our National Anthem!