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    • Even Hennessey is getting big power out of the C7 Corvette ZR1 LT5 - 1139 rwhp

      BoostAddict prefers to avoid posting anything that promotes John Hennessey (never forget) but this is technically a world record for the C7 Corvette ZR1. Advanced Modern Performance held the C7 ZR1 LT5 record with an 1102 rwhp pull until Hennessey now edged it out.


      1139 rear wheel horsepower is a ton of power:


      Done on the stock internals and factory blower so give the LT5 credit. Fuel is E85 and boost is 24 psi.

      How is Hennessey doing it? Like this:

      HPE1200 Package Requires Race Gas*
      Ported Factory Supercharger
      Billet High-Flow Throttle Body
      Hennessey Upper Pulley Upgrade
      Hennessey Lower Pulley Upgrade
      High-Flow Air Induction System
      Custom HPE Camshaft
      Ported Cylinder Heads
      Upgraded Valve Springs and Retainers
      Upgraded Intake valves & Exhaust Valves
      Upgraded Lifters and Pushrods
      Long-tube Stainless Steel Headers
      Stainless Steel Midpipes
      High-Flow Catalytic Converters
      8-Speed Automatic Upgraded Transmission*
      All Necessary Gaskets & Fluids
      Professional Installation
      HPE Engine Management Calibration
      Dyno Tuning & Road Testing
      Serial-Numbered Dash & Engine Plaques
      Hennessey Exterior Badging
      Hennessey Premium Floormats

      Those premium floor mats and the Hennessey badges no doubt are a huge part of the HPE1200 upgrade package.

      John Hennessey can enjoy having a record for now but other tuners will top this no time and do so for far less money. They'll even pull it off without cheesy badges and floor mats.


      This article was originally published in forum thread: Even Hennessey is getting big power out of the C7 Corvette ZR1 LT5 - 1139 rwhp started by Sticky View original post
      Comments 4 Comments
      1. CobraMarty's Avatar
        CobraMarty -
        "Requires Race Gas", E85 is not race gas, is it?

        It doesn't say what he did to the fuel system.

        'Ported factory supercharger', there's probably room for more power with a larger supercharger.

        That kind of power and torque, how does it hook up being just RWD? Myst be a animal/monster.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by CobraMarty Click here to enlarge
        "Requires Race Gas", E85 is not race gas, is it?
        It can be.

        Click here to enlarge Originally Posted by CobraMarty Click here to enlarge
        That kind of power and torque, how does it hook up being just RWD? Myst be a animal/monster.
        Traction is overrated.
      1. Batman's Avatar
        Batman -
        That motor needs to be put in the Camaro.
      1. Batman's Avatar
        Batman -
        Click here to enlarge Originally Posted by Batman Click here to enlarge
        That motor needs to be put in the Camaro.
        Actually, make that the motor, transmission, and drive-train.