Twin-Turbo Corvette Corvette C8 Hits the Dyno, Check Out How Much Power It Makes

Hennessey has elevated the LT2’s power to new heights.

Texas-based Hennessey took the keys to a 2020 Chevrolet Corvette C8 production vehicle. It didn’t take long for them complete a twin-turbo transformation. The mid-engined sports car comes with a 6.2-liter V8 motor that produces 495 horsepower and 470 pounds-feet (637 Newton meters) of torque. If you choose the Z51 performance package, it adds 5 HP and 5 lb/ft (7 Nm) to the base model.

Chevy has provided the official output numbers. The tuner mentioned that the car had 466 hp (451 lbft) at the rear wheels, when the LT2 was still naturally aspirated. The first Corvette now has a twin-turbo engine. It produces 643 horsepower and 570 lbft (773 Nm) at its wheels. This is an increase of 177 HP and 119 Lb-ft (162Nm) over the stock Corvette C8.

Twin-Turbo Corvette Corvette C8 Hits the Dyno, Check Out How Much Power It Makes

Although this C8 is Hennessey’s car, the tuner promised that it would sell twin-turbo converters to customers who want more power out of their Corvettes. A custom exhaust system will bring a “slightly power increase”, followed by a supercharger that increases output to 700 horsepower. To make the most of the powerful power gains, the range-topping package will include a pair turbos and an upgrade to the LT2’s internals. The dual-clutch auto transmission will also be strengthened to handle the increased power.

The Z06 and ZR1 are Chevy’s most powerful mid-engined machines. Rumours have circulated about a twin-turbo electrified V8 that produces 900 horsepower. This will be the highest-powered stock Corvette ever built and also the first all-wheel-drive Corvette.