MSD 7720 Power Grid 7 Ignition Control for Power Grid System

The MSD 7720 Power Grid 7 Ignition Control is a high-output capacitive discharge ignition box purpose-built for use exclusively with the MSD Power Grid System Controller (PN 7730 or PN 77303). Engineered for serious racing applications, this ignition control delivers consistently powerful spark energy at every RPM, outperforming conventional programmable ignition units.

The MSD 7720 utilizes a capacitor that is rapidly charged to 545–570 volts and discharged at the precise moment of ignition trigger, ensuring full-power spark delivery even at extreme RPM levels where conventional inductive ignitions begin to drop off. It operates on any 12–18 volt negative ground electrical system and supports RPM operation up to 15,000 RPM at 14.4 volts.

CAN-Bus technology is integrated into the Power Grid system, simplifying wiring and enabling direct connection to Racepak Data Recorders and other compatible Racepak products. The PN 7730/77303 Power Grid System Controller mounts directly on top of the 7720 ignition box for a clean, compact installation.

Key Features:

• High-output spark energy: 200–220 millijoules per spark
• Primary voltage: 545–570 volts
• Secondary voltage: 50,000+ volts
• Spark series duration: 20° crankshaft rotation
• RPM range: Up to 15,000 RPM at 14.4 volts
• Current draw: 1.3 amps per 1,000 RPM
• Operating voltage: 12–18 volts, negative ground
• Circuitry: Digital, 32-bit microcontroller
• CAN-Bus technology for simplified accessory module integration
• Power Grid System Controller PN 7730/77303 mounts directly on top
• Supplied with wiring harness and mounting hardware

Important: The MSD 7720 is designed for use with the Power Grid Controller PN 7730 or PN 77303 only. This is a racing use only ignition system and is not legal for use on emissions-controlled or street-driven vehicles.