Breakdown of Included Items

MSD 62023 Ultra 6A Ignition Control Box

The Ultra 6A is capacitive discharge and uses a high-speed controller that controls output voltage, multiple spark discharge, and timing. It is resistant to Electro Magnetic Interference (EMI).

MSD 62023 Ultra 6A Ignition Control Box Features:

• The processor and board provide efficient ignition with minimal heat, maximum spark energy, and less current draw
• High rpm operation and maximum output using MSD Blaster HVC (High-Voltage Coil) 8252 or Blaster HVC II 8253 (both sold separately)
• Compatible with 4, 6, and 8-cylinder engines with distributors
• Operates on most 7 to 28-volt electrical systems
• Connects to points or magnetic pickups
• Fully protected against an open/shorted coil or an open load
• Full MSD power for faster throttle response and improved starting
• Tach Output for an external tachometer
• Current Draw: 1.1 Amps per 1,000 RPM
• Rev Limiter: No
• Primary Voltage: 520-540 Volts
• RPM Range: 15,000 RPM with 14.4 Volts
• Secondary Voltage: 45,000 Volts
• Spark Energy: 135mJ - 150mJ Per Spark
• Voltage Required: 12-15 Volts, 7 Volt Start
• Dimensions: 3.300 in. x 3.800 in.
• Weight: 344 grams

MSD 62023 Ultra 6A Ignition Control Box Notes:

• Solid core spark plug wires cannot be used with MSD Ignitions
• Do not use digital or dial-back timing lights

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.

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