Results 1 to 9 of 9

Thread: 6530 msd boost curve help

  1. #1
    Join Date
    Jul 2014
    Posts
    1

    Default 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. #2
    Join Date
    Mar 2010
    Posts
    1

    Default

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

  3. #3
    msdtech1955 Guest

  4. #4
    msdtech1955 Guest

    Default

    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 .

    BOOST RETARD EXA1.JPG

    MAP EXAMPLE 6530.JPG

    RPM CURVE 6530.JPG

    6530advance 38for the web.JPG

  5. #5

    Default

    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.

  6. #6
    Join Date
    Jan 2010
    Location
    Brisbane, Australia
    Posts
    1,580

    Default

    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

  7. #7
    msdtech1955 Guest

    Default

    [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.

  8. #8
    Join Date
    Jul 2015
    Posts
    16

    Default

    [QUOTE=msdtech1955;95489]
    Quote 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

  9. #9
    Join Date
    Jul 2015
    Posts
    16

    Default

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

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
About us
Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors have powered every NASCAR® Sprint® Cup team and nearly every NHRA® Pro–Stock champion for four decades. Now, Holley EFI is dominating the performance world as well as our products for GM's LS engine. Holley's products also include performance fuel pumps, intake manifolds & engine dress–up products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies - Hooker Headers, Flowtech Headers, NOS Nitrous, Weiand, Earl's Performance Plumbing, or Diablosport - Holley products can give you the edge you need over the competition.
Join us