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Thread: MSD 7AL-3 And Eldebrock 71900 Wiring ?

  1. #1

    Default MSD 7AL-3 And Eldebrock 71900 Wiring ?

    I have the MSD 7AL-3 / Will be running 2 foggers and a transbrake..Just got a Eldebrock Progressive ' and needed to know the best wiring/diagram would be for this ? I have 1 WOT on the carb and 1 push button on the steering wheel..WOT is first stage and push button will be the 2nd...thanks

  2. #2
    msdtech1955 Guest

    Default

    which part number from edelbrock.

  3. #3

    Default edelbrock

    Quote Originally Posted by msdtech1955 View Post
    which part number from edelbrock.




    71900 is the part #

  4. #4

    Default

    Quote Originally Posted by msdtech1955 View Post
    which part number from edelbrock.


    71900 is the part #

  5. #5
    msdtech1955 Guest

    Default

    here is the base drawing ( not done yet).....
    need more info:

    1) is it the black or red 7al-3?

    2) second stage retard ? activated by another timer ?

    Attachment 3151

  6. #6

    Default

    Quote Originally Posted by msdtech1955 View Post
    here is the base drawing ( not done yet).....
    need more info:

    1) is it the black or red 7al-3?

    2) second stage retard ? activated by another timer ?

    Attachment 3151
    I had planned on using the eldebrock progressive for the larger kit off the wot...And the 2nd smaller kit off a push button on the steering wheel, unless you know of a better way i should do this ??

    Black 7al-3

  7. #7
    msdtech1955 Guest

    Default

    2 kits...big kit on progressive controller, smaller kit on push button.

    forum1.jpg

  8. #8

    Default

    Quote Originally Posted by msdtech1955 View Post
    2 kits...big kit on progressive controller, smaller kit on push button.

    Attachment 3156

    I understand the whole wiring except i wanted to ask, the pink wire at the top coming off the +12 timer output off the progressive, is that going to the step one retard on the 7AL3 ??

    Thanks for your time and help.....

  9. #9
    msdtech1955 Guest

    Default

    yes, you will have to set the timer to activate the step retard .

  10. #10

    Default

    Quote Originally Posted by msdtech1955 View Post
    2 kits...big kit on progressive controller, smaller kit on push button.

    Attachment 3156
    Perfect Diagram...Except im running a fogger...Can you do me another diagram showing the nos & fuel on one side of the intake and the nos & fuel on the other side of the intake....Everything else will be the same...I will be using a button on the steering wheel for the smaller stage ....

    Everything is like I told you, im running 2 foggers and I want to make sure where all the gnd's are going...thanks

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