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MSD DIS-4 Plus High Output


Product Description

MSD DIS-4 Plus High Output


  • Two adjustable Rev Limits
  • Diagnostic LED
  • Adjustable retard stage
  • Ignition Interrupt Circuit

The DIS Ignitions all deliver a stout, CD spark that is capable of burning the majority of air/fuel mixtures. There are of course exceptions, such as full bred race engines running high boost pressures from turbos, blowers or nitrous. To answer these needs, we offer a Higher Output version of the DIS Ignition Controls.The DIS Plus HO Ignitions produce an incredible 170 millijoules of spark energy with 470 primary volts. This increased output will light up fuel mix­tures even under extreme cylinder pressures.The DIS-HO boxes are not CARB approved and are designed for drag racing applications only.

Operating Specifications

  • Spark Energy: 170 mJ/spark
  • Primary Voltage: 470 Volts
  • Secondary Voltage: 43,000 Volts
  • Spark Series Duration: 20 degree Crankshaft Rotation
  • RPM Range: 14,000 RPM with 14.4 Volts
  • Voltage Required: 10-18 Volts, Negative Ground
  • Current Draw: 10 Amps at 10,000 RPM
  • Weight and Size: 3 lbs.,9.5"L x 4.5"W x 2.2"H


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