MSD 6520 Digital 6-Plus Ignition Control Box w/ Programmable 2-Stage Rev-Limit

The MSD Digital 6-Plus Ignition Control combines terrific power, digital accuracy, and great accessories making it ideal for street/strip applications. Every spark of the Digital 6-Plus Ignition is packed with 135 millijoules of spark energy and 535 primary volts. When used with the MSD Blaster HVC Coil (121-8252), a spark with over 300 milliamps burns across the plug gap for 400 microseconds. Below 3,300 RPM the Digital 6-Plus produces a series of sparks that burn in the cylinder for up to 20° of crankshaft rotation. This incredible heat ensures combustion to produce great power, quick throttle response, smooth idle, and fast starts.HighlightsSwitch between two rev limits that adjust with rotary switches in 100 RPM increments
Single-stage retard for nitrous and top-end performance
Start retard eases pressure on the starter, flywheel, and engine
Adjustable magnetic pickup compensation produces accurate trigger signals
LED display warns of trigger signal problems or faulty charging system
Fully potted with polyurethane for vibration and water protection
Non-OBDII approved via CARB EO #D-722-2
50 State Legal
Operating SpecificationsSpark Energy: 135 mJ per spark
Primary Voltage: 535 volts
Secondary Voltage: 45,000 volts (Tested with blaster HVC II coil)
Spark Series Duration: 20° Crankshaft Rotation
RPM Range: 12,000 RPM with 14.4 volts
Voltage Required: 12-18 volts (negative ground)
Current Draw: 0.7 amp per 1,000 RPM
Size: 8.5\" L x 4.5\" W x 2.2\" H
Weight: 3.7 lbs