MSD Ignition 7531 Digital-7 Plus Programmable Ignition Control Includes:

• Wiring Harnesses
• Mounting Hardware
• RS232 Computer Harness
• Pro-Data+ Software on a Mini-CD

MSD Ignition 7531 Digital-7 Plus Programmable Ignition Control Features:

• ICM Timing Control: Adjust ignition timing up to 5 degrees of retard into each cylinder in 0.1-degree increments
• Run Curve: Plot a timing curve of 0.1 degrees per 100 RPMs throughout the entire rpm range
• Launch Curve: Program a timing curve exclusively for the launch
• Launch Retard: Retard the timing up to 15 degrees for 0-2.5 seconds after launch
• Step Retards: Three steps of retard that can be activated with nitrous solenoids or switches
• Gear Retards: Program a timing retard up to 5 degrees for every gear change
• Start Retard: Ease engine cranking with an adjustable retard during start-up
• Three-Step Rev Control: Program rev limits in 100 rpm increments for burnout, launch and overrev protection
• Shift Light: Program a different rpm setting for each gear change for up to six gears
• RPM Activated Window Switch: Activate a circuit at an adjustable rpm such as a nitrous solenoid, then set another rpm level to deactivate the same circuit
• Map a complete timing curve for every gear
• Stage retards can be set to ramp the timing
• Updated X-Y plots with interpolation for smooth changes
• View all ignition events in a new Launch History window including the retard sum, manifold pressure, RPM, shift points, and more
• Select the RPM limiter value in RPM/Seconds
• Vacuum advance and boost retard is selectable through a MAP sensor
• There is a cam sync output for fuel controllers or data acquisition
• Program your engine's firing order for ease of setting the cylinder-to-cylinder timing
• Automatic magnetic pickup compensation for crank triggers or distributor pickups
• Output to activate a device through RPM, time or pressure inputs
• An upgraded microcontroller runs at 40mHz enabling timing accuracy within 0.1 degrees and +/- RPM at up to 10000 RPM

MSD Ignition 7531 Digital-7 Plus Programmable Ignition Control Specifications:

• Spark Energy: 190 mJ per spark
• Primary Voltage: 535 volts
• Secondary Voltage: 40000 volts (tested with Pro Power HVC Coil)
• Spark Series Duration: 20 degrees crankshaft rotation
• RPM Range: 12500 RPM with 14.4 volts
• Voltage Required: 12 to 18 volts (negative ground)
• Current Draw: 1.1 amp per 1000 RPM
• Size: 9.5 in. L x 4.5 in. W x 2.2 in. H
• Weight: 3 lbs.

MSD Ignition 7531 Digital-7 Plus Programmable Ignition Control Note:

• Illegal for use in NHRA classes except Pro Mod

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

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