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MSD Ignition 6421 - MSD Digital 6AL/6A and 6-Series Ignition Control Boxes

MSD Ignition 6421 - MSD Digital 6AL/6A and 6-Series Ignition Control Boxes

MSD Ignition#121-6421

Digital 6AL-2 Ignition Control
  • Per Spark Energy: 135 mJ
  • 2-Step Rev Control without RPM Modules

    MSD Ignition 6421 - MSD Digital 6AL/6A and 6-Series Ignition Control Boxes Details

    6-Series Digital Ignition Controls

    MSD is excited to announce the next generation of 6-Series ignition controls: the 6AL-2. This all-new ignition control combines a new housing, new digital controls, and more power in a sleek package. Inside the new cast aluminum housing you'll find an advanced micro-controller that manages the timing and RPM of the ignition. The spark output of the new box has been turned up to 535 volts of primary voltage with spark energy reaching up to 135 millijoules! The multiple sparks of the 6AL-2 burn in the cylinder for 20° of crankshaft rotation to ensure complete combustion. Two more great features are the rev limiters: one for high-end overrev protection and another you can activate off a clutch or transbrake to set a launch limit. This feature will help your car blast off the starting line! Adjustments are made via four rotary dials for 100 RPM increment control. Easily connects to nearly any 12-volt negative ground distributor system. Compatible with 4, 6 and 8 cylinder engines.

    Highlights
  • 100 RPM increment control using 4 rotary dials
  • All-new housing and digital circuits
  • Accepts Hall Effect triggers
  • Managed by an efficient digital controller

    Operating Specifications
  • Spark 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 to 18 volts (negative ground)
  • Current Draw: 0.7 amp per 1000 RPM
  • Size: 7" L x 4" W x 2" H
  • Weight: 3 lbs

  • MSD Ignition 6421 - MSD Digital 6AL/6A and 6-Series Ignition Control Boxes

    MSD 6AL: The Most Popular Performance Ignition

  • Compatible with 4, 6, and 8-cylinder engines
  • Capacitive discharge circuitry with full-power multiple sparks
  • Trigger from breaker points, amplifiers, or magnetic pickups
  • Works on almost any vehicle with a 12 to 18 volt electrical system

    JEGS Easy Kits are designed by JEGS professionals to help you get all the performance parts you need.

  • MSD Ignition 121-6421

    RPM
    15,000
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