Watch Hennessey Performance dyno test this stock 2019 Corvette ZR1.
We’ve talked about the Corvette ZR1 as being one of the best deals for a supercar you can buy. For less than $150,000, you get over 750 horsepower and a zero to sixty time of under 3 seconds. Top speed is rated at 214 mph, which is freaking fast for any car.
Although capable of producing some very impressive times around a track, we do have to admit that all that power can sometimes get away from the ZR1 on the drag strip. Much like the Dodge Demon, unless the conditions are absolutely perfect, the ZR1 will spin its wheels and go absolutely nowhere fast off the line.
Power goes either through a 7-speed manual or an 8-speed automatic transmission and at 3,560 lbs, the ZR1 is not a particularly heavy car and thus relies on that massive rear wing to provide downforce on the rear wheels.
Luckily, downforce isn’t a problem on the dyno track, where everything is bolted to the floor with heavy cables.
The Corvette’s big supercharged engine screams while under heavy load, as though angry at its tied-down position and desperately trying to break free. After the dyno has done its thing, everyone at Hennessey’s garage gathers around to see just how efficient the ZR1’s transmission really is.
Rear wheel horsepower is rated at 654.64, while rear wheel max torque is 645.2 lb-ft. That’s a power loss of roughly 13% to the transmission, which isn’t too bad at all.
Now Hennessey will move on to installing one of their three possible upgrades, giving the ZR1 either 850, 1,000, or 1,200 horses by the time they’re done. Upgrades include a much larger supercharger, a 7.0-L engine with custom aluminum pistons, a heavy-duty crankshaft, ported cylinder heads, upgraded valves, a new intercooler, and stainless steel headers.
We won’t know what this particular Corvette becomes until much later when Hennessey makes another video, but we’ll be sure to let you all know when this caterpillar becomes a butterfly.