MSD 62152 DIS-4 Plus 4-Channel Distributorless Ignition Control

The MSD 62152 DIS-4 Plus is a high-performance capacitive discharge ignition control engineered for late-model distributorless ignition systems (DIS) with coil pack or waste spark configurations. Capable of firing up to four coil packs or four individual coils, it delivers full-power CD sparks across the entire RPM range — from idle to race RPM — on 4, 6, or 8-cylinder engines.

Built with advanced digital technology, the DIS-4 Plus utilizes power MOSFET switching and IGBT coil drivers managed by a 15 MHz micro-controller for precise spark timing, accurate rev limiting, and responsive throttle control. Below 3,000 RPM, the unit fires a series of multiple sparks lasting up to 20 degrees of crankshaft rotation to sharpen idle quality, cold-start performance, and low-speed throttle response.

Key Features:

• 4-channel design fires up to four coil packs or four individual coils
• Full-power capacitive discharge spark output from idle through maximum RPM
• Multiple spark series below 3,000 RPM — up to 20° crankshaft rotation per event
• Two-step rev control with adjustable over-rev limiter and holeshot rev limit
• Step retard function — wires directly to a nitrous system or activation switch
• LED monitor for ignition trigger and low battery voltage indication
• All adjustable features set via easy-to-use rotary switches
• CARB Executive Order compliant — EO # D-115-25

Operating Specifications:

• Spark Energy: 105–115 millijoules per spark
• Primary Voltage (into coil): 460–480 volts
• Secondary Voltage: 40,000 volts
• Current Draw: 6.6 amps at 10,000 RPM
• RPM Capability: 14,000 RPM at 14.4 volts
• Operating Voltage: 10–18 volts, negative ground
• Spark Series Duration: 20° crankshaft rotation

The MSD 62152 DIS-4 Plus is CARB-legal for use on emissions-controlled vehicles in all 50 states when installed per the manufacturer's application guide (EO # D-115-25). Note: solid-core spark plug wires are not compatible with this ignition. Vehicles originally equipped with a CD ignition system are also not compatible.