2020 Chevrolet Corvette C8 Engine and Performance
131he 2020 Stingray’s heart is Chevy’s next-generation 6.2L Small Block V-8 LT2 engine, the only naturally aspirated V-8 in the segment. It will produce 495 horsepower (369 kW) and 470 lb-ft (637 Nm) of torque when equipped with performance exhaust — the most horsepower and torque for any entry Corvette.
“Though now placed behind the driver, the LT2 gives the same visceral experience we all expect from Corvette,” said Jordan Lee, GM’s global chief engineer of Small Block engines. “The LT2 has been designed to deliver excellent low-end torque and high-end power to give thrilling pedal response at any RPM.”
The powertrain’s low position enables a low center of gravity for optimal handling. Perhaps the biggest update is found in the lubrication and ventilation system. For the first time ever, the base Stingray will use an engine-mounted dry sump oil system and three scavenge pumps for improved track performance.
During serious track driving, oil volume remains high to avoid diminished performance. The new Stingray’s lateral capability is greatly improved, so the LT2’s dry sump lubrication system had to be redesigned to provide exceptional engine performance even at lateral acceleration levels exceeding 1G in all directions.
A lightweight, 3.2mm-thick glass panel on the rear hatch allows owners to show off the engine. This panel features a cantilevered trailing edge to evacuate heat from the LT2 engine compartment.
The next generation LT2 is paired with Chevrolet’s first eight speed dual-clutch transmission, which provides lightning-fast shifts and excellent power transfer. This transmission is uniquely designed with TREMEC to provide the best of both worlds: the spirited, direct connected feeling of a manual and the premium driving comfort of an automatic. The double-paddle de-clutch feature even allows the driver to disconnect the clutch by holding both paddles for more manual control.
Paddle shifters allow drivers to choose a specific gear. “The performance shift algorithms are so driver-focused, they can sense when you’re doing spirited driving — regardless of driving mode — and will hold lower gears longer for more throttle response,” said Juechter.
The new Small Block V-8 has a torque curve optimized to take advantage of the bespoke DCT’s lightning-fast shifts. Engineers set the DCT up with a very low first gear to leverage the additional traction to get the car off the line quickly, and its close-ratio gears 2 through 6 keep the engine near the power peak on track. Tall seventh and eighth gears make for easy long-distance cruising with low mechanical stress and excellent fuel economy.
The DCT is mated to a new Electronic Transmission Range Selector. With this electric shifter there’s no mechanical interface between the shift lever and the transmission. The Corvette’s electric shifter incorporates two pull toggles for Reverse and Drive and push buttons for Park, Neutral and Low/Manual. The shifter has been designed to be more attractive and compact than a standard shifter.
All-new technology improves performance and usability
Driver mode choices have been expanded from four to six, allowing drivers to tweak the feel of their Corvettes to their personal preference. The familiar Weather, Tour, Sport and Track modes remain, and there are two new modes:
MyMode, a configurable setting for preferred driving style that can remain between key cycles.
Z mode, named after the famed Z06, ZR1 and Z51 Corvette performance packages, is activated through a “Z” button on the steering wheel. This is a single-use mode that takes MyMode configurations one step further, allowing drivers to adjust the engine and transmission as well.
The 2020 Stingray benefits from GM’s new digital vehicle platform, an all-new electronic architecture that enables the adoption of the company’s next generation of technologies. The architecture minimizes wiring while allowing for faster signal transmission between different vehicle systems and the higher resolution screens. The platform enables continuous vehicle improvements through over-the-air updates and enhanced cybersecurity measures.
Get More Great Car Videos - Subscribe: https://goo.gl/BSIaFc