Hennessey HPE850 Shelby GT350R vs Stock Shelby GT350R

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The gang over at Hennessey will take an already fast Shelby GT350R and strap a supercharger to it with a package that they call HPE850. We assume that the reason the package is called HPE850 is that it makes 850 horsepower, but the video doesn’t say how much power the modified GT350R is making. To show how much faster the supercharged GT350R is than the stock GT350R; they lined the cars up for some racing.

The races are all from a roll, and the supercharged car, as you would guess, is much faster than the stock GT350R. The HPE850 car easily wins all races with different drivers behind the wheel. We wonder just how much the supercharger might hinder the GT350R on a road course.

While the video doesn’t say how much power the modified GT350R makes, but assuming it is a standard HPE850 car, it’s making 858 horsepower and 673 pound-feet of torque. Hennessey claims a 0-60 mph time of 3.3 seconds and a quarter-mile time of 10.8 seconds at 133 mph. Hennessey will also massage the Ford Ranger pickup. The list of modifications to turn a GT350 or GT350R into the HPE850 is long and includes:

  • 3.0L Supercharger system
  • High-flow throttle body
  • High-flow fuel injectors
  • High-flow heat exchanger
  • High-flow air induction system
  • Chassis dyno calibration & testing
  • All necessary gaskets & fluids
  • Professional installation
  • Road testing up to 200 miles
  • Hennessey & HPE850 exterior badges
  • Serial numbered interior plaque & under hood plaque
  • Hennessey premium floor mats
  • Certificate of Authenticity personally signed by John Hennessey
  • 2 Year / 24,000 mile limited warranty
  • Shell V-Power 93 octane gasoline
  • Pennzoil Ultra Platinum synthetic oil & filter change

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Written by Shane McGlaun

Shane is a car guy with a fondness for Mustangs and off-roading.

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One Comment

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  1. That was stupid. They took a road race car and ran a drag race with it. It was even closer than I thought. They didn’t start from a dead stop because the blower car would’ve just boiled the tires and lost. I’m so against doing this to such a well balanced, bad ass machine. There’s no need for a supercharger or anything to take away from that car. It’s a balancing act to get out of corners with 526 hp, never mind 700 or more. The few tracks with long enough straights to use it have enough slow corners to keep the times close. You’re much better off spending that money on driving lessons and keep the beautiful sound of that engine as it is with now blower whine.

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