 3.0 to 914 6 wiring questions, just a few wires |
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| rgalla9146 |
 Jul 8 2021, 07:48 AM
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#1
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Advanced Member  Group: Members Posts: 4,671 Joined: 23-November 05 From: Paramus NJ Member No.: 5,176 Region Association: None 
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I have a 911 SC engine harness that I want to modify to install its engine in my GT project.
The car has complete working 914 6 engine and chassis harnesses. I have already eliminated all the SC fuel injection circuits and want to create a simple plug-in engine harness for the 6 pin CD ignition and internal regulated alternator. There are two wires on the CD unit I need advice on. The 12v power is best sourced at what pin out of the relay board ? The black/purple (tach pulse) goes to what pin into the relay board ? The blue wire out of the alternator (charge light) goes to what connection on the relay board ? I'd rather keep the 6 relay board. The coil, starter and oil press/temp are pretty well settled. TIA Anyone ? Attached thumbnail(s) 
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| roblav1 |
Jul 8 2021, 12:39 PM
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Senior Member Group: Members Posts: 528 Joined: 18-September 12 From: KY Member No.: 14,943 Region Association: MidAtlantic Region |
There's all kinds of threads here on wiring. I know one is specifically for an SC engine. Some diagrams came from Auto Atlanta. I have hard copies in the shop. 1st question is your alternator internally or externally regulated?
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| rgalla9146 |
Jul 8 2021, 04:04 PM
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#3
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Advanced Member Group: Members Posts: 4,671 Joined: 23-November 05 From: Paramus NJ Member No.: 5,176 Region Association: None
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QUOTE(roblav1 @ Jul 8 2021, 02:39 PM)  There's all kinds of threads here on wiring. I know one is specifically for an SC engine. Some diagrams came from Auto Atlanta. I have hard copies in the shop. 1st question is your alternator internally or externally regulated? It's internally regulated. I'm pretty certain I have the alternator wiring covered. The big red(charging) wire goes to one end of the battery cable or the other. The fat ground goes to the engine case. The small blue wire for the charge lamp does not go through the 14 pin connector. I will extend a lead from the engine harness to the D+ female (no voltage regulator) in the relay board. The circuit then exits the relay board forward through pin 2 (blue wire) to the dashboard lamp. With that connection I believe the alternator wiring issue is solved. Input is appreciated |
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Posts in this topic
rgalla9146 3.0 to 914 6 wiring questions Jul 8 2021, 07:48 AM
Mark Henry I can't help you, I deleted my relay board.
D... Jul 8 2021, 08:07 AM peteyd We can build you a custom harness in shop.
Give ... Jul 8 2021, 11:19 AM
IronHillRestorations
There's all kinds of threads here on wiring.... Jul 8 2021, 09:37 PM Mark Henry Just re-read the post, you may need two harnesses ... Jul 8 2021, 02:36 PM peteyd You mean this boot Perry? @IronHillRestorations
... Jul 9 2021, 06:10 AM IronHillRestorations
You mean this boot Perry? [b]@[url=http://www.91... Jul 9 2021, 06:20 AM peteyd @IronHillRestorations
One of our suppliers in Eu... Jul 9 2021, 06:28 AM rgalla9146 Next up is the tach wiring.
The 911 SC 6 pin... Jul 10 2021, 08:08 AM roblav1 http://forums.pelicanparts.com/porsche-911...lity-... Jul 10 2021, 08:10 AM rgalla9146
http://forums.pelicanparts.com/porsche-911...lity... Jul 10 2021, 11:44 AM |
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