 Wiring msd6al to 74s 6 engine? |
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| mate914 |
 Jun 14 2023, 09:54 AM
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Matt  Group: Members Posts: 749 Joined: 27-February 09 From: Eagles mere, PA Member No.: 10,102 Region Association: North East States 
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Can some one point me to the wiring setup for a 74 911s dizzy with points and MSD 6al ignition? Thankyou,
Matt (IMG:style_emoticons/default/flag.gif) |
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| Robarabian |
Jun 14 2023, 07:29 PM
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#2
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914 A Roo Group: Members Posts: 592 Joined: 11-February 19 From: Simi Valley, Kalifornia Member No.: 22,865 Region Association: Southern California
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I run a 6AL in my 2.7. PM me your email and I can take some photos and send them to you.
Rob |
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| Bullethead |
Jun 15 2023, 06:47 AM
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#3
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Oil Cooled heart Group: Members Posts: 897 Joined: 24-June 10 From: South Florida Member No.: 11,875 Region Association: South East States
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Here's a PDF https://documents.holley.com/6425.pdf |
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| mlindner |
Jun 16 2023, 05:56 AM
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Senior Member Group: Members Posts: 1,520 Joined: 11-November 11 From: Merrimac, WI Member No.: 13,770 Region Association: Upper MidWest
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On my 74 914 with a 2.2L six with MSD and points, I purchased a wiring harness from Perry Kiehl. Not only did he build a great harness but provided an excellent diagram of how to wire it to the car. If you would like a copy PM me you email address and I'll send it to you. Mark PS forgot to mention, mine is for a relay board delete.
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| sportlicherFahrer |
Jun 16 2023, 07:16 AM
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#5
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Nothing to see here. Group: Members Posts: 1,079 Joined: 18-April 05 From: Tacoma, WA Member No.: 3,945 Region Association: Pacific Northwest
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However you wire it, be sure to follow the routing instructions at the top of page 5 in the installation procedure. The trigger wires from the distributor to the box are very susceptible to EMI and can cause misfire problems if they are routed with other wires.
"Routing Wires: The MSD wires should be routed away from direct heat sources such as exhaust manifolds and headers and any sharp edges. The trigger wires should be routed separate from the other wires and spark plug wires. It is best if they are routed along a ground plane such as the block or firewall which creates an electrical shield. The magnetic pickup wires should always be routed separately and should be twisted together to help reduce extraneous interference." |
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