SparkMAX – Note to MSD 2-Step Users (coil on plug 2 step)

Forum Index Forums PowerMAX SparkMAX – Note to MSD 2-Step Users (coil on plug 2 step)

This topic contains 0 replies, has 1 voice, and was last updated by  JMS Chip 4 years, 2 months ago.

  • Author
    Posts
  • #135

    JMS Chip
    Keymaster

    The MSD 2-Step is very sensitive to any voltage over 15v DC.

    To use the MSD 2-Step with the JMS SparkMAX you will need to wire a automotive relay into the system. This relay will disable the SparkMAX when the MSD 2-Step is active.

    Utilize a typical automotive relay wire as listed below.
    85 -> GROUND
    86 -> +12v wire that activates the MSD 2-Step (usually connected to a switch)
    30 -> Cut the Silver GROUND Activation wire on the JMS SparkMAX…..connect one side to 30 and the other side to 87A
    87A -> Cut the Silver GROUND Activation wire on the JMS SparkMAX…..connect one side to 30 and the other side to 87A
    87 -> NOT CONNECTED (not used)

    How it works:
    Normally power is not applied to the MSD 2-Step so the JMS SparkMAX functions like normal (pin 30 is connected to pin 87A)
    When staged power is applied to the MSD 2-Step, it is also applied to the SparkMAX Disable Relay……the relay energizes (pin 30 is disconnected from pin 87A) and JMS SparkMAX is disabled.
    At launch power is removed from the MSD 2-Step and the SparkMAX Disable Relay…….SparkMAX works like normal.

    link to automotive relay
    http://shop.advanceautoparts.com/p/factory-air-standard-relay-35928/18890997-P?navigationPath=L1*14920%7CL2*15005%7CL3*15655

    • This topic was modified 4 years, 2 months ago by  JMS Chip.

You must be logged in to reply to this topic.