View Full Version : LS PCM power connection
csouth
10-20-2016, 06:40 AM
When I was doing all the setup for my swap I ran the power for the PCM to the alternator since I have a trunk mounted battery. For the final install should I move this to the battery or can it remain where it is? I can't use the starter because I use a remote solenoid so there is no constant "hot" on the starter.
andrewb70
10-20-2016, 07:38 AM
When I was doing all the setup for my swap I ran the power for the PCM to the alternator since I have a trunk mounted battery. For the final install should I move this to the battery or can it remain where it is? I can't use the starter because I use a remote solenoid so there is no constant "hot" on the starter.
For this, and other reasons, I like having a robust power distribution system under the hood. I like using these Delphi Maxi Fuse modules.
https://www.pro-touring.com/~andrewb/cougar/722.jpg
Andrew
csouth
10-20-2016, 11:49 AM
Yeah, I'd would still have to get power from the batter to there correct?
Connecting to the alternator post is the same thing as using a distribution connector. I like the power connection from mid 80s and 90s. It is a straight 5 lug power distribution found on the firewall of gm trucks. I mounted one on the front radiator support to power relays, headlights and fans.
Rick
andrewb70
10-21-2016, 06:43 AM
Connecting to the alternator post is the same thing as using a distribution connector. I like the power connection from mid 80s and 90s. It is a straight 5 lug power distribution found on the firewall of gm trucks. I mounted one on the front radiator support to power relays, headlights and fans.
Rick
As Rick said, I see no issue with running a lead from the alternator to the main power distribution point. Presumably you also have a largish gauge wire from the alternator to the hot side of the solenoid?
Andrew
csouth
10-21-2016, 06:59 PM
Connecting to the alternator post is the same thing as using a distribution connector. I like the power connection from mid 80s and 90s. It is a straight 5 lug power distribution found on the firewall of gm trucks. I mounted one on the front radiator support to power relays, headlights and fans.
Rick
As Rick said, I see no issue with running a lead from the alternator to the main power distribution point. Presumably you also have a largish gauge wire from the alternator to the hot side of the solenoid?
Andrew
Yeah, it's 8 gauge
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