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6530 msd boost curve help

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  • 6530 msd boost curve help

    Need help with learning how to make a run curve and a boost curve for 6530 a graph example would be appreciated thanks for sharing

  • #2
    A week and no reply? Not looking good...try yellowbullet.com

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    • #4
      just remember ...when the ignition switch is on... and you see the red line appear on the bottom graph...

      to the left is vacuum ..to the right is boost .

      Click image for larger version

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      • #5
        im not sure if I understand this final picture, you're telling me if I set total timing to 13 degrees that I can ADVANCE it to 38? I thought those figures on the left represent retard.

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        • #6
          It should read idle timing of 13, total will be 38 with no retard.

          Total needs to set with a timing light, and then both ends of the curve verified.

          Idle of 13 is 38 with a retard of 25.
          Regards, Gary

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          • #7
            [QUOTE=wide5racing;95484]im not sure if I understand this final picture, you're telling me if I set total timing to 13 degrees that I can ADVANCE it to 38? I thought those figures on the left represent retard.[/QUOT

            basically, the 6530 works off of a delay ....

            example: you would set your total timing of 38.0 degrees ...
            that would be your 0 mark ....anything down or south from that line is retard .

            as you work your way up from the bottom of the graph would be advancing the timing back to the total timing set .
            ( your zero mark of 38 degrees ).. this simply advancing the timing electronically based off rpm . Where as the conventional mechanical method of using springs and weights.

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            • #8
              [QUOTE=msdtech1955;95489]
              Originally posted by wide5racing View Post
              im not sure if I understand this final picture, you're telling me if I set total timing to 13 degrees that I can ADVANCE it to 38? I thought those figures on the left represent retard.[/QUOT

              basically, the 6530 works off of a delay ....

              example: you would set your total timing of 38.0 degrees ...
              that would be your 0 mark ....anything down or south from that line is retard .

              as you work your way up from the bottom of the graph would be advancing the timing back to the total timing set .
              ( your zero mark of 38 degrees ).. this simply advancing the timing electronically based off rpm . Where as the conventional mechanical method of using springs and weights.
              That is the way I thought it worked.

              If that is the case it looks to me that the numbers (number in purple) in the last pictures are backwards

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              • #9
                if you take the numbers in purple and take them away from the total timing (locked at timing), you will get the "advanced" amount.

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