7531 MSD Ignition Box - Universal, Sold individually M467531
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MSD DIGITAL-7 PROGRAMMABLE IGNITION CONTROL -- For 4-cylinder vehicles; 190 mJ per spark, 535 V primary voltage, 40,000 V secondary voltage, 20 degree crankshaft rotation spark series duration, 12,500 rpm with 14.4 V rpm range, 12-18 V negative ground voltage required, 1.1 amp per 1,000 rpm current draw, 3 lbs. W, 9.5 x 4.5 x 2.2 in. size; 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; Acquire 20 seconds of run data including two seconds prior to launch; Select the rpm limiter value in rpm/seconds; Program an rpm limit that is ramped in during the launch; 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 pick- ups; Output to activate a device through rpm, time or pressure inputs; An upgraded micro- controller runs at 40MHz enabling timing accuracy within 0.1 degrees and +/-1 rpm at up to 10,000 rpm.
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