The new Camaro ZL1 is extremely impressive right off the showroom floor, running an 11-second quarter mile, pushing around 650 horsepower and 650lb-ft of torque. Its the fastest Camaro to date but, of course, that doesn’t stop Hennessey from tweaking it and making it even faster than before.
The HPE850 is a mid-grade upgrade from the team over at Hennessey Performance, lifting that already impressive horsepower number up to a whopping 858. Basically, the pretty short list of included upgrades are; high flow heads, a custom cam, long-tube headers, an intake, exhaust, and a custom tune. The stock transmission and torque converter are left alone.
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The package is available for either factory automatic or manual transmission equipped vehicles. The manual ZL1 with the HPE850 pushes 735 horsepower and 706lb-ft of torque to the wheels–Of course, the automatic is slightly less due to driveline loss, but it still looks pretty insane if you ask us.
Hennessey just recently posted a new video, showing the HPE850 upgrade in action on a 10-speed ZL1. It shows a mean burnout, a pretty hard launch, and the car’s very first test run down the quarter mile. When fitted with 20-inch drag radials, like in the video, the 10-speed HPE850 ZL1 runs a 10.54-second quarter mile with a trap speed of 131.85 mph.
The upgrade costs $23,950 on top of the price of a new ZL1, coming in at around $87k. Sure, Hennessey’s creations are pretty pricey– but where else can you get a warrantied, 10-second, 858-horsepower Camaro?