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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.