MSD 62153 DIS-4 Plus High Output 4-Channel Distributorless Ignition Control

The MSD 62153 DIS-4 Plus High Output is a race-grade, 4-channel capacitive discharge ignition (CDI) controller engineered for distributorless ignition systems (DIS) on 4, 6, and 8-cylinder engines. Built specifically for full-race applications running high boost pressures from turbos, superchargers, or nitrous oxide, this high-output unit delivers the extra spark energy needed to ignite fuel mixtures under extreme cylinder pressures that standard ignition systems struggle to overcome.

At its core, the DIS-4 Plus HO produces 170 millijoules of spark energy with a massive 470 primary volts, firing up to 43,000 volts at the secondary (stock coil). The ignition is built on advanced digital architecture, utilizing power MOSFET technology and IGBT coil drivers managed by a 15 MHz micro-controller for lightning-fast spark delivery, rev limiting, and timing compensation. Each spark series lasts for 20 degrees of crankshaft rotation, improving throttle response and mid-range power output.

Key Features:

• 170 mJ Spark Energy – 470 primary volts, 43,000 secondary volts for maximum combustion under extreme cylinder pressures
• 4-Channel Output – Compatible with 2, 3, or 4 dual-output coil packs on 4, 6, or 8-cylinder engines
• Two Adjustable Rev Limiters – Set one limit for launch/holeshot control and a second for top-end RPM protection, both adjustable via built-in rotary dials
• Adjustable Retard Stage – Programmable high-speed timing retard to prevent detonation under nitrous or extreme boost conditions
• Diagnostic LED – Alerts the operator to low supply voltage or faulty trigger input signals
• Ignition Interrupt Circuit – Disables coil output to prevent unauthorized engine starts
• Digital Multi-Spark – Multiple sparks per firing event for more complete combustion
• Wide Operating Voltage – Functions on 10–18 volts, negative ground systems

Operating Specifications:

• Spark Energy: 170 millijoules per spark
• Primary Voltage: 470 volts
• Secondary Voltage: 43,000 volts (stock coil)
• Operating Voltage: 10–18 volts, negative ground
• Current Draw: 10 amps at 10,000 RPM
• RPM Range: 14,000 RPM at 14.4 volts
• Spark Series Duration: 20 degrees of crankshaft rotation

Race Use Only: The MSD 62153 is not CARB approved and is intended exclusively for closed-course competition and non-emissions-controlled vehicles. It is not legal for use on pollution-controlled or street-registered vehicles.