On The Dyno: The Hennessey Exorcist Makes Almost 1,000 WHP

Before the release of the famed (and seriously fast) Dodge Demon, Hennessey had already created a monster to give it some much needed competition. The creation, dubbed “The Exorcist,” was an upgraded Chevrolet Camaro ZL1 said to be pushing upwards of 1,000 horsepower and 966 lb-ft of torque. Its not hard to see why it took the internet by storm, along with Dodge’s release.

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The heavily modified 6.2-liter LT4’s existing blower was swapped out for a larger supercharger, pushing 14 pounds of boost, and was complimented with an upgraded intercooler, ported factory cylinder heads, a cam upgrade, long-tube headers, a high-flow air induction system, and, of course, a custom tune. John Hennessey said, when equipped with rear drag radials, the end result “will deliver 0-60 MPH times under 3 seconds while running the ¼ mile in less than 10 seconds.”

Now, for the first time since its debut, we have seen the Exorcist stretch its legs on the dyno– finally showing us fans just how many of those 1,000 horses are making it to the wheels.

So what does this thing push to the tires?… An impressive 959 horsepower and 756 lb-ft of torque to be exact– two figures much higher than the Demon’s 840 horsepower and 770 lb-ft (and that’s not counting the Demon’s power lost through its drivetrain).

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The real question, though– will that be enough to exorcise the Demon when Hennessey inevitably lines them up at the drag strip? We’re sure we’ll find out soon enough.

About the author

Jenna Schiebe

Jenna’s addiction to all things automotive began soon after she was introduced to the car scene at age 16. She has a special interest in imports but, at the end of the day, is a enthusiast that loves anything that goes fast.
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