Hennessey has a long history of making big horsepower, usually involving turbochargers. This in-car video from a breathed-on Viper
shows off just how quickly Hennessey's mods can make the scenery blur. We really hate the sound of the fuel pump at the beginning of the clip - it's loud and obtrusive, and covers up a lopey idle from the V10. We're going to go out on a limb here and state that the cam isn't stock, and that's where the bumpy idle comes from. The fuel pump is quickly forgotten when the run starts. After a soft-shoe launch to maintain traction, the driver lays into it. The twin huffers sing their banshee song, things get real fast in a hurry, and ultimately 220 MPH is achieved in 24.1 seconds. Thanks to our friends over at Streetfire for yet another clip to giggle like schoolgirls over instead of working.
Video after the jump