Made in USA
77303 Power Grid Ignition System Controller [Black]
InfoVehicle Info Needed
MSD IGNITIONPART NUMBER: 121-77303

77303 Power Grid Ignition System Controller [Black]

$61095$679.95You Save$69.00
ShippingShips on Sep 18, 2026
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Power Grid Ignition System Controllers
Power Grid Ignition System Controller
  • Programmable 7-Series Ignition Control
  • CAN-Bus Technology
  • 32-Bit Microcontroller
  • USB-Compatible
  • Windows-Based Software
  • Micro SD Card for Data Acquisition
  • Black

    Mounting Template

    MSD Ignition 77303 Power Grid Ignition System Controller Features:

    • Incorporates 32-bit microcontroller and software program MSD View
    • Windows-based software has tabs to select different programming windows and parameters
    • Data acquisition files captured on a micro SD card
    • CAN-Bus technology reduces the amount of wiring and simplifies the addition of additional modules
    • Connects directly to Racepak Data Recorder and other Racepak products
    • Compatible with all MSD boxes
    • Specially designed to mount to MSD Power Grid-7 Box 7720 (sold separately)
    • 4-Connector CAN-Bus Hub MSD 7740 (sold separately) needs to be attached to the Power Grid System Controller when using MSD 7720 (sold separately) with the Power Grid Ignition System
    • USB connection for ease of programming
    • Timing based on engine rpm and gear value
    • Advanced individual cylinder timing based on gear or time
    • 5-Retard stages for nitrous
    • 4-Steps of RPM limits for burnout, spool, launch and overrev
    • Output switch set on rpm, pressure or time
    • Shift light settings for each gear
    • Ignition data acquisition accepts multiple runs
    • Crank Trigger system highly recommended
    • Supplied with MSD View Software, wiring harness, micro-SD card, and mounting hardware

    MSD Ignition 77303 Power Grid Ignition System Controller Specs:

    • Current Draw: .5 amps to .7 amps
    • Operating Voltage: 7-18 Volts

    Emissions Note:

    This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

    CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

  • Part TypeIgnition Control Module
    BrandMSD IGNITION
    Package Height3.0
    Package Width9.7
    Package Length10.9
    Weight3.25 PG
    Part CategoryPerformance Parts
    Controller ActivationRPM activated
    Controls Ignition AdvanceYes
    Ignition Box RequiredYes
    QuantitySold individually
    Part FitmentSemi Universal
    Compatible With Multiple Coil IgnitionsYes
    CircuitryDigital
    Controls Ignition RetardYes
    AdjustableYes
    Stages Of Ignition Retard5
    Adjustment StylePC
    Vendor Part Number77303
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews

    Items You Need

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    Power Grid 6-Bar Boost Controller Up to 75 PSI

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    CAN-Bus Extension Harness, 4 ft. for Power Grid and Atomic EFI

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    Some parts are not legal for use in California or other states with similar laws / regulations
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