Chevrolet says many of the components and technologies compare favorable to the 2015 Corvette Z06.
By: Autoweek Personnel on January 13, 2014
Corvette Racing – Corvette Racing has 2 Chevrolet Corvet C7.R race cars entered in the approaching Rolex 24 Hrs at Daytona.
Chevrolet and Corvette Racing on Monday unveiled the new Corvette C7.R race auto at the North American International Automobile Display in Detroit, alongside the new 2015 Corvette Z06 road car. The C7.R will this season compete in the Tudor United SportsCar Championship as properly as the 24 Hrs of Le Mans, and Chevy officials explained how it shares technology with its manufacturing-auto sibling.
According the Chevy, many of the architectural and aerodynamic characteristics of the C7.R are based mostly on equivalent parts and technologies from the 2015 Corvette Z06.
New, aluminum frame: As ahead of, the race auto and the Z06 share the same, manufacturing-based mostly aluminum frame. Nonetheless, for the first time, the frames for the race vehicle and manufacturing Z06 will be built in-property at the Corvette’;s Bowling Green, Ky., assembly plant.
By leveraging advanced manufacturing materials — such as laser welding, Flowdrill-machined fasteners and a GM-patented aluminum spot-welding process — the production framework is considerably more powerful than its predecessor. For Corvette Racing, this equates to a race chassis that is 40-percent stronger than the outgoing C6.R.
Direct-injected engine: The addition of direct fuel injection to the Z06 allows the technology to return to a Corvette race auto for the very first time since the end of the GT1 era in 2009. It guarantees higher efficiency, which is critical in long-distance endurance races such as Daytona, Sebring and Le Mans through fewer time-consuming pit stops.
“Direct injection delivers 2 rewards for the race crew,” stated Chevy racing director Mark Kent. “First, it gives drivers far more precise throttle control, so that even the smallest modifications in the driver’;s throttle position delivers a proportional response from the engine. 2nd, direct injection generally improves fuel economic system about 3 %. That could be enough to bypass one fuel quit in the course of a 24-hour race. Offered that races are often won and lost in the pits, a 3-% gain in fuel economy could translate to a substantial advantage in track position.”
Aerodynamics: The aerodynamic approaches of the Corvette Stingray came directly from the Corvette C6.R, like the forward-tilted radiator, practical hood and front-quarter panel vents, and rear transmission and differential cooling intakes.
Jeffrey Sauger for Chevrolet – The Chevrolet Corvette C7.R was unveiled in Detroit on Monday.
The Z06 and C7.R consider that aerodynamic basis to the following level, sharing aggressive methods for increased cooling and aerodynamic downforce, such as similar front splitters, rocker panels, and front- and rear-brake cooling ducts.
“We worked concurrently with the race group establishing the aerodynamic packages for the Z06 and the C7.R,” said Corvette chief engineer Tadge Juechter. “We even utilized the identical modeling software to test both automobiles, enabling us to share data and wind-tunnel test outcomes. As a outcome, the aerodynamics of the manufacturing Z06 generate the most downforce of any manufacturing automobile GM has ever examined, and we are closing in on the aero efficiency of a devoted race automobile.”
Variations in between the race car and production Z06 include the fact that the C7.R carries more than the powertrain for the C6.R, as the GT guidelines restrict the greatest displacement to 5.5 liters, and prohibit forced induction. By comparison, the new Z06 boasts a supercharged 6.2-liter engine estimated at 625 horsepower. Each engines, even so, are based on the historic tiny block architecture.
The C7.R’;s suspension is modified to accommodate wider racing tires and bigger brakes, once more element of the GT regulations.
On the aerodynamic side, 1 key difference is the shift away from U.S. National Advisory Committee for Aeronautics, or NACA, ducts on the C7.R. The C6.R utilized 2 NACA ducts, on leading of the rear bodywork and near the position of the rear wheels, for cooling. On the C7.R, there are now openings on each of the rear quarter panels, above the brake ducts, which will draw air to aid cool the race car’;s transaxle and differential.
In addition, the C7.R’;s rear wing is a much more-significant component of the car’;s aero package. A bigger radiator inlet has the extra benefit of creating smoother airflow above the rear wing and producing its use much more effective to the handling and stability of the race automobile at higher speed.
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