Page 2 of 2 FirstFirst 12
Results 11 to 14 of 14

Thread: MSD Grid and Biondo Shift Solenoid

  1. #11
    Join Date
    Jan 2010
    Location
    Brisbane, Australia
    Posts
    1,094

    Default

    Your drawing is wrong. The solenoid needs to be connected to 87, NOT 87A. 87A is a normally closed contact, so relay off, solenoid on, 30 is connected to 87A at rest. Redraw your drawing. Gary
    Regards, Gary

  2. #12

    Default

    My drawing is not wrong, this drawing is to TAKE AWAY 12 VOLTS not give the unit 12 volts. If it was on 87 once the ground wire from the grid activates it, it would trigger the relay from open to closed. There for giving it 12 volts to shift you need to understand how the shifter works in order to wire the relay the correct way.

  3. #13

    Default

    Here is a diagram to GIVE 12 VOLTS to a shifter to shift:
    Click image for larger version. 

Name:	Give12vtoshift.jpg 
Views:	4 
Size:	23.3 KB 
ID:	7717
    Here is a diagram to TAKE AWAY 12 VOLTS to shift:
    Click image for larger version. 

Name:	Take12Vaway.jpg 
Views:	5 
Size:	24.2 KB 
ID:	7718
    Thank you for your input, but the diagrams are correct.

  4. #14
    Join Date
    Jan 2010
    Location
    Brisbane, Australia
    Posts
    1,094

    Default

    It would have been nice to know that the solenoid is operated; and to shift, you are releasing the solenoid.
    What a backwards setup.
    To give 12 volts would be better, since NOTHING is operated while the vehicle is off.
    I know how relays operate; I'm a mechanic, and telecommunications tech.
    Thanks for your explanation, since MANY others would not have followed your drawing. Gary
    Regards, Gary

Page 2 of 2 FirstFirst 12

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