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MSD Distributorless Ignition

MSD Ignition
MSD Distributorless Ignition

Product images may differ from actual product appearance.

The 4-Channel MSD Distributorless Ignition delivers a stout, CD spark that is capable of burning the majority of air/fuel mixtures. The MSD Distributorless Ignition Plus HO Ignitions produce an incredible 170 millijoules of spark energy with 470 primary volts. This increased output will light up fuel mixtures even under extreme cylinder pressures. The Distributorless Ignition-HO boxes are not CARB approved and are designed for drag racing applications only.

Soft Touch REV Control
The 4-Channel Distributorless Ignition features an adjustable built-in Soft Touch Rev Control to protect the engine from overrev damage caused by missed shifts or broken driveline components. This feature produces a smooth rev-limiting action by randomly dropping one cylinder at a time and then refiring that cylinder on the next firing cycle. This feature is easily adjusted with simple program switches mounted on the side of the unit.
Two Step Module Selector
The Two Step function of the MSD Digital Distributorless Ignition allows you to activate a low RPM limit while staging and waiting for the light to turn green. This popular feature gives you a distinct advantage over your competition by permitting you to control your engine's RPM precisely before every launch. With a fixed RPM limit at the starting line, each launch will be consistent and quick! The RPM limit is easy to adjust in 250 RPM increments with switches built into the side of the housing.
Programmable Timing Control
Precise timing control is essential to producing maximum engine power. With the addition of nitrous, turbos or supercharger systems, timing becomes even more critical. To get the most out of your engine, the ignition must be able to compensate for these extreme changes in cylinder pressure throughout the engine's entire RPM range. During low speed operation, the MSD Distributorless Ignition uses the factory ignition to control basic timing functions. Once maximum timing is achieved, 4-Channel Distributorless Ignition can be programmed to retard the timing at a specific rate and RPM point to prevent engine damage due to detonation caused by excessive timing.

A built-in LED monitor is a useful tool to determine the status of the charging and ignition systems. When the battery voltage drops below 8 volts, the LED will begin flashing at a rate of two times per second, letting you know that the charging system is not operating properly or that the battery has failed. Also, if any of the ignition's channels lose their trigger input, the LED will flash at a rate of one flash per second.
Ignition Interrupt
To prevent accidental or unauthorized starting of the vehicle, the 4-Channel Distributorless Ignition systems feature a driver activated ignition interrupt feature that can be used as an anti-theft device. When activated, this feature will prevent the engine from starting by disabling the ignition's voltage output to the coil.
EMI Noise Protection
As with all MSD Ignition products, additional protection from Electro Magnetic Interference (EMI) has been added to the design of the Distributorless Ignition System. Special circuitry filters out unwanted noise that commonly causes other aftermarket ignition systems to false trigger, operate intermittently and even fail.

Note: Not legal for sale or use on pollution controlled vehicles.

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    MSD DIS-4 Plus HO Distributorless Ignition
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    MSD Midget DIS-2 Programmable Race Ignition
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