Page 1 msd module selectors two step pn 8739 three step pn 8737 parts included.
Msd 3 step instructions.
These selectors use the msd plug in rpm modules.
Page 2 installation instructions rev limiter step module selector pn 8739 black autotronic controls corporation 1490 henry brennan dr el paso tx 79936 module 2 module 1.
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The 7al 3 packs high voltage with four step retards three rev limits and an rpm switch.
By connecting one wire to the line lock circuit one module will be activated during the burnout.
As an example we ll use a drag car with a three step module selec tor plugged into the rpm socket of a 7al 2 ignition.
Here is the install of the msd 3 step.
When the line lock button is released.
Find msd three step module selectors 8737.
Testing the launch control on msd 3 step r4ka 240sx.
T a c h c c ign pts m m ground rpm to ground to 12v module 2 active with no voltage.
For racers that want adjustments at their fingertips the 7al 3 is the right choice.
Do not use solid core spark plug wires with any msd component.
They feature three built in rev limiters one for burnout one for starting line launch and one for high end.
Installation instructions 3 msd www msdperformance com 915 857 5200 fa 915 857 3344 spark plugs and wires spark plug wires are very important to the operation of your ignition system.
The rev control gives you the ability to set one rev limit for the burnout another for the staging rpm limit.
Msd also makes one of these for the digital 6al box.
All of the features are adjusted using plug in modules including the 3 step rev control and multi step retard.
The msd 6al 2 ignition can be used with most stock coils and aftermarket coils designed to replace the stock coils.
For extended high rpm operation the blaster hvc pn 8252 or hvc ii pn 8253 are recommended.
2 installation instructions autotronic controls corporation 1490 henry brennan dr el paso texas 79936 915 857 5200 fax 915 857 3344 figure 3 basic three step installation.
Msd 3 step module selectors are designed for great versatility.
The different rpm modules are activated when 12 volts are applied to a corresponding wire.
This helps keep tire temperatures consistent.
1 parts bag wiring terminals 1 module selector 4 mounting screws note.
The line of msd blaster coils pn 8202 pn 8207 and pn 8222 are great for street and mild racing.
