They feature three built in rev limiters one for burnout one for starting line launch and one for high end.
Msd 3 step module wiring diagram.
This one is for the analog 6al box that s older.
The different rpm modules are activated when 12 volts are applied to a corresponding wire.
Here is the install of the msd 3 step.
4 installation instructions s uêwwwmsdperformance comê uê x ê nxx ç óî ê uê 8 ê x ê nxç îî wiring general wiring information wire length.
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.
This module will also be active if 12 volts are supplied to the red and blue wires.
When activated the timing is retarded 25.
Msd also makes one of these for the digital 6al box.
Module 1 active with 12 volts on red wire.
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Figure 3 basic three step installation.
To 12v clutch switch msd micro switch pn.
Find msd three step module selectors 8737.
All of the wires of the msd ignition may be shortened as long as quality connectors are used or soldered in place.
Find msd three step module selectors 8737 and get free shipping on orders over 99 at summit racing.
Installation instructions optional wiring this wiring section details the optional features of the msd 7al 3 and how to wire each system.
Page 1 msd module selectors two step pn 8739 three step pn 8737 parts included.
Msd two step wiring diagram wiring diagram is a simplified usual pictorial representation of an electrical circuit it shows the components of the circuit as simplified shapes and the talent and signal friends amongst the devices.
To lengthen the wires use one size bigger gauge wire 12 gauge for.
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.
Follow me on s.
By connecting one wire to the line lock circuit one module will be activated during the burnout.
It shows the components of the circuit as simplified shapes and also the power as well as signal connections in between the tools.
Collection of msd digital 6al wiring diagram.
This helps keep tire temperatures consistent.
A wiring diagram is a simplified standard pictorial representation of an electrical circuit.
Module 3 active with 12 volts on blue wire.
These selectors use the msd plug in rpm modules.
T a c h c c ign pts m m ground rpm to ground to 12v module 2 active with no voltage.
1 parts bag wiring terminals 1 module selector 4 mounting screws note.
Msd 3 step module selectors are designed for great versatility.