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MSD Ignition 7789 - MSD Power Grid Ignition System

MSD Ignition 7789 - MSD Power Grid Ignition System

JEGS Part Number: 121-7789

Wiring Harness Adapter
  • Converts Programmable 7 to Power Grid

    MSD Ignition 7789 - MSD Power Grid Ignition System Details


    The Harness, PN 121-7789, allows a user to use their existing Programmable-7 Harness to install the Power Grid System with minimal changes. The harness is designed to be a direct plug-in for all existing wires, but will need two new wires run if the user desires the two new inputs of the Power Grid.

    The Ultimate in RPM and Timing Controls

    The Power Grid Ignition System has an all new software program, called MSD View, and is USB compatible. The Windows based software is designed with tabs to help racers easily select different programming windows and parameters. Also, the data acquisition files of the ignition are now captured on a micro SD card for ease of storage and reviewing.

    The Power Grid Ignition features CAN-Bus technology which reduces the amount of wiring and simplifies the addition of accessory modules. The CAN-Bus is a common harness that accessory controls are connected to and easily brought into the programming library of the View Software. With this technology, racers can connect the Power Grid system directly into their Racepak Data Recorder and other Racepak products.

    The Power Grid Controller is the brains behind the entire system and can be used with any MSD Ignition or the Pro Mag to provide advance ignition tuning capabilities. While it is compatible with all MSD boxes, the new Power Grid System Controller has been specially designed to mount to the Power Grid-7 box. Also, this new Ignition packs higher output than the current programmable units.

  • USB Connection for Easy Programming
  • Timing Based on Engine RPM & Gear Value
  • Advanced Individual Cylinder Timing Based on Gear or Time
  • (5) Nitrous Retard Stages
  • (5) RPM Limits: Burnout, Spool, Launch, Over Rev & Safety
  • Output Switch Set on RPM or Time
  • Each Gear Includes Shift Light Settings
  • Ignition Data Acquisition Records Multiple Runs

  • Not legal for sale or use on pollution-controlled vehicles.
  • To use any modules with the Power Grid System (121-7720 and 121-7730) users MUST plug the modules into a 4-Connector CAN-Bus Hub to be attached to the Power Grid System Controller.

    Powergrid System Flyer

    JEGS EZ Complete Kits are designed by JEGS professionals so you get all the parts you need.

  • MSD Ignition 121-7789

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