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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)

[Source: supercars.net]

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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    • 1 Second Ago
      • 8 Years Ago
      Funny, #10 seems to be correct. Before you pile on the viper for being heavy, etc. the Viper weighs 3450 lbs, the Ford GT weighs 3520, Lamborghini Gallardo is 3520, and a Porsche 911 Turbo S is 3494. As
      far as this car being heavier, it may actually be lighter. To gain displacement they bore out the cylinder to create volume. The engine
      doesn't actually get bigger and overly heavy.

      I think that Hennessey is probably a fraud (don't know personally) but it is a nice looking car that is extremely fast.

      And I am sure your Camry tells the world that you have a big penis.
      • 8 Years Ago
      Bigger is heavier and less nimble.
      Good for the straights...
      • 8 Years Ago
      And I'm still convinced the Viper screams "I HAVE NO PENIS"
      • 8 Years Ago
      Is it big ? Is it fast ? 9,5 liters, 810 horsepower, is it the ultimate power ?
      How is the biggest engine for a normaly streetcar ?
      Maybe AC Cobra from Weineck germany ?
      Facts: 16 liters, 1600 horsepower and as 4000 Nm (2954 Ib ft) as torque.
      How fast ? 0-60 mls in 1,4 seconds and top speed of 267 mph. It doesn`t get any bigger engine for a car !

      • 8 Years Ago
      #9- So what does a Ferrari Enzo or Ford GT, or Lambo Gallardo, etc scream? You are a jackass and your comment screams "I'm jealous and have no money"
      • 8 Years Ago
      Steve...maybe you're just a little gay if you think about a man's penis when you see his car. (not that there's anything wrong with it)
      • 8 Years Ago
      How extremely bland and ricey.
      • 8 Years Ago
      No, no. I'm with Steve here. The enzo et al at least have the pretention to be sports car. Lean and mean. Not heavy with 10L of displacement.

      They managed to turn a slightly ugly sports car into a heavy disgustingly ugly monster.

      And it's pretty clear that Viper owners have no penis.
      • 8 Years Ago
      I think I got that car in a box of cereal once...
      • 8 Years Ago
      810 ft-lbs from 9.5 liters, No.
      Try 710.
      • 8 Years Ago
      Simply ideal model!