Hennessey Supercharged C8 Corvette Stingray Convertible Lays Down 572 Wheel Horsepower

Hennessey Supercharged C8 Corvette Stingray Convertible Lays Down 572 Wheel Horsepower

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Image: Hennessey on YouTube

Compatible with the 2020 to 2024 Chevrolet Corvette Stingray in convertible or coupe hardtop form, the Hennessey H700 package offers a sports car with a 6.2L mid-engine and a high-flow centrifugal blower.

Instead of the stock 490/495 horsepower and 465/470 pound-feet of torque, which is 630 or 637 Nm in the metric system, the supercharger levels the crankshaft number of 708 hp and 638 lb-ft (865 Nm). That, in turn, means Hennessey’s H700 package would slot between the C7-generation ZR1 (755 hp) and the C7-generation Z06 (650 hp).

How much of that power reaches the wheels? On a Sealy-based tuner, that would be 571.60 horsepower at 6,510 rpm and 519.07 foot-pounds (704 Nm) at 4,750 rpm. Otherwise, the drivetrain losses reach 19.2 percent for power and 18.64 percent for torque.

Both may be higher than the 15 percent rule, but either way, remember that the H700-spec Stingray puts more power and torque at the wheels than the bone stock one does at the crankshaft. Introduced in January 2024, the new $34,950 supercharged version transforms the Stingray into an expensive car.

The 2024 Chevrolet Corvette Stingray model year is $68,300 starting. Add a $1,695 destination charge, then an additional $34,950 for the fastest package, and you get $104,945 for the muscled-up 1LT Coupe. Beyond the spoiler, Hennessey further improves the program with a high-ventilation system, an air-to-water intake, exterior badging, an improved fuel system, a cat-back exhaust, engine and transmission software modifications, a range of balanced engine compartment. , and warranty.

Image: Hennessey on YouTube

Looking at the big picture, that’s quite a deal, especially compared to the high-end Z06. You should also keep in mind that some dealers are offering the Stingray below the suggested price, while the Z06’s grades are declining rapidly at press time. Why is that? In fact, Chevy is preparing to reveal the new ZR1 this summer.

Similar to the C7, the C8-generation ZR1 is best described as a Z06 on steroids. Instead of the naturally aspirated V8 and flat-plane crankshaft, the newcomer gets a pair of turbochargers. According to a leak from the GM parts catalog, the ZR1’s LT7 engine differs the most from the LT6 in the form of Active Fuel Management (cylinder deactivation).

That means switching to a cross-plane crankshaft, which can lower the redline from 8,600 revolutions per minute to something in the ballpark of 7,000 revolutions per minute. For reference, the fourth-generation Coyote V8 in the 2024 Ford Mustang Dark Horse tops out at 7,500 with a 10-speed automatic or 7,250 with a manual transmission.

In stark contrast to the 2024 Chevrolet Corvette E-Ray, the ZR1 won’t feature any electric assist. However, the upcoming Zora will combine the ZR1’s twin-turbo V8 with an electric drive unit for the front axle. It’s easy to imagine 1,000 horsepower from this combination if the LT7 makes 840 horsepower and the front unit is the same 160-hp engine used in the E-Ray.