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MSD Ignition 6631 - MSD Digital 6AL/6A and 6-Series Ignition Control Boxes

MSD Ignition 6631 - MSD Digital 6AL/6A and 6-Series Ignition Control Boxes

MSD Ignition#121-6631

6 HVC-L Ignition Control
  • Built-In Fast Rev Limiter
  • NASCAR-Approved Deutsch Connectors

    MSD Ignition 6631 - MSD Digital 6AL/6A and 6-Series Ignition Control Boxes Details

    6-Series HVC-L Circle Track & Professional Racing Ignition Controls

    Professional race teams have been relying on the power and endurance of our 6 HVC Ignition Control and will be excited to see the addition of a rev limiter! The 6 HVC-L Ignition has a built-in rev limiter that will save the engine from overrev damaged caused by spins, missed shifts or driver misfortune. This means there is no need to mount an external rev control (i.e., less wiring and reduced weight)! The advanced component design and circuitry of the 6 HVC Ignitions produce incredible voltage with high current output. Internally there is an efficient heat sync, solid component mounting and it's all encased in a clear epoxy. The rpm limit is adjustable with plug-in modules and the wiring is routed into NASCAR approved Deutsch style MSD connectors.

    Operating Specifications

  • Spark Energy: 150 mJ per spark
  • Primary Voltage: 550 volts
  • Secondary Voltage: 40,000 volts (tested with 6HVC Coil)
  • Spark Series Duration: 20° crankshaft rotation
  • RPM Range: 15,000 RPM with 14.4 volts
  • Voltage Required: 12-18 VDC Negative Ground
  • Current Draw: .7 amps per 1,000 RPM
  • Size: 8" L x 4" W x 2.25" H
  • Weight: 5.1 lbs

    Note: Not legal for sale or use on pollution-controlled vehicles.

  • MSD Ignition 6631 - MSD Digital 6AL/6A and 6-Series Ignition Control Boxes

    MSD 6-Series Ignitions set the standard for quick starts, increased power, smooth idle, crisp throttle response and reduced spark plug fouling. MSD ignitions are available in a several styles and install easily in a variety of applications.

    Digital 6A: Base model with multiple sparking, capacitive discharge (CD) ignition control.
  • Hotter Spark for Improved Driveability
  • Without Rev Limiter - Can Not Be Added

    Digital 6AL: Digital 6AL or 6BTM Ignitions are made for spirited driving, grabbing gears or some form of racing.
  • Includes Adjustable Soft Touch Rev Control
  • Can Add a 2-Step Module Selector for Launch rpm Limit

    Digital 6AL-2: Ideal for the street and strip applications.
  • Includes Built-in 2-Step Rev Control

    Digital 6 Plus: Ideal for 4, 6 and 8-cylinder engine applications.
  • Includes Built-in Drag Race Features, 2-Step Rev Control, Single Stage Retard and Start Retard

    Programmable 6AL-2: Provides PC programming for the street.

    Extreme Duty 6ALN: For severe duty applications such as off-road truck racing or saturday night dirt tracks,
  • Sealed locking connectors and epoxy for vibration resistance create an ignition ready to take on the rigors of hard-core racing.

    Marine: All of the power and multiple sparks of an MSD, plus a rev limiter for Marine applications.
  • Includes sealed Weathertight connectors

    Professional Racing: Designed for professional long duration, high-rpm racing.
  • Features NASCAR mandated harnesses, a clear baseplate and vibration dampening silicone
  • Uses a special Coil (121-8250) & produces higher spark energy and voltage

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

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