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Alternator Wiring and Protection Revisited https://www.slantsix.org/forum/viewtopic.php?f=28&t=64401 |
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Author: | 64 Convert [ Sun Jan 12, 2020 3:26 pm ] |
Post subject: | Alternator Wiring and Protection Revisited |
After reading the recent thread about improving the 60-amp charging system I’ve lost confidence in what I planned to do with my old Forward Look Mopar that is being modernized, customized and totally rewired. It’s not my slant-powered Valiant, and I apologize, but this is the only forum that I trust for accurate advice on all things Mopar. My project will have a trunk mounted battery, relay-controlled headlights per Dan’s instructions, additional individually-fused circuits to accommodate power windows, modern sound and lighting systems, etc, and upgraded wiring throughout. The starting point for the wire bundles is based on a ’73 Dodge truck since it has a steering column and ignition switch from that model. It will also have one modern fuse/relay bus under the hood, and another inside the shifter console. I hesitate to go into more detail at this point since I think it will confuse more than help, so I’ll limit my question to the charging system. I currently have a #2 cable running from the trunk-battery positive terminal through a conduit to a bulkhead feed-thru, and another that continues from the feed-thru to the starter relay. It has a 50-amp breaker at the battery end only. The battery ground was planned to be a short #4 wire to the frame and another from the frame to the engine block. I have yet to complete the alternator hook-up but had planned to us a #10 wire direct from the alternator to the under-hood bus and another through the firewall to the center console bus. I did not plan to install fuses on those circuits. I concluded from the other thread discussion that I need to seriously rethink the alternator-to-battery and the power bus circuits, so I could really use some advice on wire sizes and circuit protection. viewtopic.php?f=28&t=58047 |
Author: | Greg Ondayko [ Sun Jan 12, 2020 3:44 pm ] |
Post subject: | Re: Alternator Wiring and Protection Revisited |
Seems like Dadtruck and Slantsixdan should be able to help. Others are well versed in ohms law too I am sure. Greg |
Author: | SlantSixDan [ Sun Jan 12, 2020 5:07 pm ] |
Post subject: | Re: Alternator Wiring and Protection Revisited |
Do it up thiswise. A good ammeter-to-voltmeter conversion can be done very cleanly without looking hacked. I strongly UNrecommend the hack-job "fix" proposed by the clowns at MAD Electrical; you can do much better. How much it costs depends on whether you do the work yourself or have it done for you. Redline Gauge (website perpetually in development; call them on the phone) and Williamsons can both do a stealth conversion of stock ammeter to voltmeter for "it must've come that way from the factory!" appearance as seen in the '62 Plymouth here (look closely at the instrument panel; the Alternator gauge now has a scale from 8 to 18 volts rather than the original D at the left and C at the right -- and the oil pressure gauge is another never-offered-by-Chrysler item done by one of the gauge specialty houses). For less money (but more work) I've also seen people successfully buy a Sunpro voltmeter, tear it apart, and mount the old ammeter face over it with excellent, clean results. See here. I don't see a problem with your battery cable configuration idea. Ping me privately for detailed info on the lighting upgrades. |
Author: | Greg Ondayko [ Sun Jan 12, 2020 6:58 pm ] |
Post subject: | Re: Alternator Wiring and Protection Revisited |
Agh.. That last link to classic mopar forum is error 404.. Greg |
Author: | Dart270 [ Mon Jan 13, 2020 2:30 pm ] |
Post subject: | Re: Alternator Wiring and Protection Revisited |
Cool project!! Lou |
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