MSD
12LT Pro-Mag Generator - Short 79082
The Pro Mag 12 series is designed for everything from circle track cars to alcohol dragsters. With 12 amps of primary current and powerful sparks that last for up to 26° of crankshaft rotation, the...
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Create A New AccountThe Pro Mag 12 series is designed for everything from circle track cars to alcohol dragsters. With 12 amps of primary current and powerful sparks that last for up to 26° of crankshaft rotation, the Pro Mag 12 is more than capable of lighting your race fuel completely for total combustion and the most power.
Of course, all this spark energy is useless without accurate ignition timing. To make sure the Pro Mags fire reaches the spark plugs at the exact moment, our engineers did away with mechanical points in favor of our race proven magnetic pickup to trigger the Pro Mag. This pickup is much more accurate than points and never requires adjustment or replacement. A precision manufactured reluctor attached to the Mags shaft is responsible for triggering the mag pickup at the precise moment.
This trigger signal goes into the Electronic Points Box that also houses the coil and rev limiting functions of the Mag. Here the generators spark energy is controlled through unique electrical circuits and delivered to the epoxy filled coil where the voltage is stepped up through specially designed windings.
Pro-Mag 12LT Amp Coil
Designed with Sprint cars in mind, the Pro Mag 12LT is almost 30% lighter than the original Pro Mag, but still produces the same incredible power. The compact housing also sits an inch lower for improved clearance of the fuel injection plus features a band clamp mount for easier timing adjustments. Available for Chevrolet, Ford and Chrysler engines!
While we were at it, we designed a new cap and rotor exclusively for the 12LT series. The cap features brass terminals and is injection molded from Dupont Rynite material for its high dielectric properties and strength. The rotor is also a special design that clamps to the shaft with a retaining bolt assembly.
Each Pro Mag 12LT is supplied with a bronze gear, band clamp, cap and rotor.