Its’s not a fair race to begin with, but at least they’re both painted white.
It’s no secret that Hennessey Performance is working on the 2020 Chevrolet Corvette C8 by giving it a twin-turbo conversion. We’ve heard it roar in its initial stage before, plus it has hit the dyno in a previous video as well, but we have yet to see it in action again. We’re guessing that Hennessey is still wrapping up its development.
What we see from the Texas-based tuner, however, is its slightly tuned mid-engine ‘Vette. Fitted with stainless steel exhaust, lightweight wheels, and Hoosier race tires, we’ve seen the white C8 drag race several cars before, including a Huracan and a Mustang Shelby GT500.
Gallery: C8 Corvette Dyno At Hennessey
Now, Hennessey pits the altered C8 versus a bone-stock Corvette C7. We’re not really sure what the purpose of this head-to-head comparison is because it has already been decided right before it even started. Plus, the C8 has performance upgrades, albeit not much, on its employ but still, we wouldn’t say that this is an apple-to-apple comparison.
But then again, a stock C8 and C7 comparison isn’t fair either. On paper alone, the C8 has the major advantage in terms of total output, with the latest model producing 490 horsepower (365 kilowatts) – a quite massive update from the former’s 455 hp (339 kW). The C8 also gets a better 8-speed dual-clutch transmission.
Jacob Oliva for Motor1
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
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
Texas tuning shop Hennessey Performance has shared some initial information and photos today as they begin to detail their plans to tune the 2020 Corvettes with the top package offering a whopping 1200 HP.
The HPE1200 package will feature a specially-built twin-turbo LT2 V8 with upgraded internals including forged aluminum pistons and forged steel connector rods. The HPE1200 Twin Turbo C8 Corvette will also see its factory dual-clutch transmission upgraded and fortified to handle the additional power.
“We expect the new C8 Corvette to be an excellent platform from which our clients can further personalize their cars, which obviously includes adding more power and performance,” said company founder and chief horsepower evangelist, John Hennessey. “Over the past several months we have had hundreds of inquiries from C8 buyers wanting to know what we will be offering for the new Corvette. Thus, we created an online questionnaire and have received over 250 completed forms and getting more every day. The customers are telling us what they want and big surprise – they want more power!”
Not just content to tune the engine, Hennessey’s C8 Corvette packages will also offer its signature “CarbonAero” carbon fiber body upgrades that includes a front splitter, air dam, and a rear carbon fiber wing. HPE will also offer an upgrade to the Brembo brake systems, as well as an upgraded Penske suspension, and wheel/tire upgrades.
Hennessee says a stainless-steel exhaust system upgrade is also in the works as well as a 700-hp supercharger system once the car’s computer can be accessed for tuning.
“We are very excited about the new C8 Corvette and have big plans for it,” said Hennessey. “From mild to wild, we plan to offer a wide variety of track-tested parts and upgrades that come with a warranty. We’ve modified over 500 C7 Corvettes since 2013 and expect to upgrade many more C8 Corvettes starting in 2020!”
Hennessey has a form on their website to gauge customer interest in their HPE packages for the C8 Corvette, so if you’re interested, head over to HennesseyPerformance.com.
Original source Hennessy Performance