Re: 1970 Alternator Recommendation
[Re: MoreParts]
#2855901
12/06/20 04:27 AM
12/06/20 04:27 AM
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Joined: Dec 2007
Posts: 18,160 Mass
DAYCLONA
I Live Here
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I Live Here
Joined: Dec 2007
Posts: 18,160
Mass
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I found the PowerMaster 7018. It's a 95amp. Any concerns for stock wiring?
https://www.speedwaymotors.com/Powermaster-7018-Retro-Alternator-95-Amps-V-belt-12V-Chrysler,335545.html I have several 1970-71 toys running the PowerMaster 7018 on the stock wiring/stock amp meter ZERO issues, Zero failures, the oldest 7018 unit I have in use is approximately 16 yrs old... Mike
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Re: 1970 Alternator Recommendation
[Re: wally426ci]
#2871389
01/08/21 10:24 PM
01/08/21 10:24 PM
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Joined: Jan 2003
Posts: 1,199
MoreParts
OP
super stock
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OP
super stock
Joined: Jan 2003
Posts: 1,199
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How did it go? Looks like they no longer make the 75 Amp versions which I run. Just curious in case I need to order.... It went well. Installed and looks like an original. I spoke with one of their tech people and I was told the casting is all new too. The back bearing looks like an original style too. I painted the front pulley black, installed my red tag label, and black plastic hot wire protector and it's back to looking very close to factory. None of the scary wire melting problems I was concerned about. I don't see any significant difference over the prior alt I had that was rated at 65amps though so I predict you won't see much either if you already have a 75. I guess the car just pulls what it needs.
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Re: 1970 Alternator Recommendation
[Re: A39Coronet]
#2871516
01/09/21 10:36 AM
01/09/21 10:36 AM
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Joined: Jan 2003
Posts: 10,758 North Dakota
6PakBee
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,758
North Dakota
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My concern with the OE design is, if something were to occur with the battery and all 95 amps head through the bulkhead connector to the ammeter, I can't imagine things would end well. Unless I'm mistaken on how the OE meter would respond. If you look at the stock ammeter in a '68-'70 Charger, high scale is 40 amperes. So if you ran 95 amps through it, the needle would be pegged to the right. Fortunately ammeters are pretty rugged and I doubt if the gauge would be damaged but the stock wiring harness at 95 amps? That probably won't turn out well.
"We live in a time when intelligent people are being silenced so that stupid people won't be offended".
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Re: 1970 Alternator Recommendation
[Re: A39Coronet]
#2871564
01/09/21 11:58 AM
01/09/21 11:58 AM
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Joined: Aug 2009
Posts: 1,084 Long Island, NY
70plymA34
super stock
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super stock
Joined: Aug 2009
Posts: 1,084
Long Island, NY
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My concern with the OE design is, if something were to occur with the battery and all 95 amps head through the bulkhead connector to the ammeter, I can't imagine things would end well. Unless I'm mistaken on how the OE meter would respond. Wouldn't the fusible link prevent that? or is that in line with the battery?
Super Commando
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Re: 1970 Alternator Recommendation
[Re: 70plymA34]
#2871672
01/09/21 03:00 PM
01/09/21 03:00 PM
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Joined: Jan 2003
Posts: 1,199
MoreParts
OP
super stock
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OP
super stock
Joined: Jan 2003
Posts: 1,199
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My concern with the OE design is, if something were to occur with the battery and all 95 amps head through the bulkhead connector to the ammeter, I can't imagine things would end well. Unless I'm mistaken on how the OE meter would respond. Wouldn't the fusible link prevent that? or is that in line with the battery? One of the things the tech told me was the alternator doesn't put out the full amperage at low idle. That occurs at max rpm. I'm not sure how that would play out with a bad component type situation, but I can say from my own use of the alt I don't see a difference with things like the brightness of my rally gauges at idle.
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Re: 1970 Alternator Recommendation
[Re: BDW]
#2871744
01/09/21 04:26 PM
01/09/21 04:26 PM
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Joined: Jan 2003
Posts: 1,199
MoreParts
OP
super stock
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OP
super stock
Joined: Jan 2003
Posts: 1,199
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Re: 1970 Alternator Recommendation
[Re: 70runner]
#2872329
01/10/21 11:31 PM
01/10/21 11:31 PM
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Joined: Jan 2003
Posts: 1,199
MoreParts
OP
super stock
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OP
super stock
Joined: Jan 2003
Posts: 1,199
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The wire/insulation near the alternator battery terminal looks like it might benefit from a replacement/retape, up to the connector. Never know when you might be wrenching in the area. Good point. I may give some of that liquid insulation I've seen you can paint on from Home Depot a shot.
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