SEMA speed: Hennessey Viper Venom 800R

Updated with Frank's live pics

Why worry about superchargers and turbochargers when you've got good old-fashioned cubic inches? After all, bigger is better right?

Living up to its VenomAero and Daytona spoiler-equipped body kit, the Hennessey Viper Venom 800R packs an amazing 585 naturally aspirated cubic inches under the bright yellow bonnet. After 12 weeks of Hennessey Performance Engineering (HPE) mojo, the nearly 10-liter monster belches out 810 bhp and 810 lb/ft of torque. Gulping air and fuel at a rate sure to satisfy an F16 in full afterburner, the 800R is capable of 0-60 in 2.9 seconds and a quarter-mile time of 10.88 @135 mph on its way up to a reported top speed of over 230 mph.

How fitting is it that this monster will officially debut on the Dupont stand at 10AM on Halloween as a part of the SEMA show in Las Vegas?

(Press release after the jump)


Although the huge high wing looks a bit over the top, the whole aero kit makes the Viper look purposeful and mean.

John Hennessey himself got inside and fired it up so we could hear what all that horsepower sounded like in the Venom.

He clearly enjoys his work at least as much as we enjoy the results.

October, 2006 - PRESS RELEASE - 585 CID Venom 800R with VenomAero Upgrade to Debut at 2006 SEMA Show


Houston, Texas - Hennessey Performance Engineering (HPE) will unveil its 585 CID (9.5 Litre) 810 HP normally aspirated engine upgrade and its VenomAero aerodynamic body system upgrade for the Dodge Viper SRT10 Coupe at the 2006 SEMA Show held in Las Vegas, October 31 - November 3, 2006.

  • The Venom 800R is capable of 0 - 60 mph in 2.9 seconds with a top speed of over 230 mph. For more information about the Venom 800R engine upgrade, please click here:

    Venom 800R - 585 CID Engine Upgrade

    The VenomAero body upgrade for the Viper SRT Coupe is designed to improve front and rear downforce at speeds over 80 mph and consists of:

  • VenomAero front bumper
  • VenomAero rear Daytona spoiler

    The Venom 800R will be unveiled at 10 am on Tuesday, October 31 at the Dupont Registry display. Dupont's display, Booth #52011 is located in the Overhaulin / SEMA Studio at the Las Vegas Convention Center.

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