The MSD Power Grid 7 Ignition Control is designed specifically to mount to the Power Grid System Controller box, PN 7730 or PN 77303. As an ignition-output-only controller, it packs higher output than MSD's current programmable units and is intended for use with the Power Grid Controller only.
Specifications:
- Product Type: Power Grid Controller
- Color: Black
- Primary Voltage: 545-570V / Secondary Voltage: 50,000V
- Spark Energy: 200-220 mJ per spark
- Maximum RPM: 15,000 RPM (at 14.4V)
- Current Draw: 1.3 Amp per 1,000 RPM
- Voltage Required: 12-18V, Negative Ground
- Weight & Size: 2.9 lbs., 7.5"L x 5"W x 2.25"H
- Part Number: 7720
Requires MSD Power Grid System Controller PN 7730 or PN 77303, which mounts directly on top of this unit; not designed to run as a standalone ignition box.
Compliance: This part is legal for sale and use on Racing Use Only Vehicles — competition vehicles that are not registered and never operated on the street. It is against the law to install this part on an Emissions Controlled Vehicle (1966-and-newer California-certified or 1968-and-newer federally certified vehicles).
FAQ
Can the MSD 7720 be used on its own?
No, it's an ignition-output-only controller designed to mount to and work exclusively with MSD's Power Grid System Controller, PN 7730 or PN 77303.
Is the Power Grid 7 street legal?
No. It carries Emission Code 4, meaning it's legal for sale and use only on Racing Use Only vehicles — competition cars that are never registered or driven on the street.
What spark energy does the 7720 produce?
200 to 220 mJ per spark, with a primary voltage of 545-570V.
What is the maximum RPM rating?
15,000 RPM at 14.4 volts.

