Re: High amp 1 wire alternator
[Re: AndyF]
#2978897
10/27/21 01:01 PM
10/27/21 01:01 PM
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Joined: Mar 2010
Posts: 1,061 Atlanta, GA
mgoblue9798
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OP
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Atlanta, GA
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OEMs don't use one wire alternators so you'll need to go aftermarket. Thank you Andy, and forgive my ignorance. I guess what I really need is one that has an internal regulator to keep the wiring simple.
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Re: High amp 1 wire alternator
[Re: mgoblue9798]
#2978949
10/27/21 02:54 PM
10/27/21 02:54 PM
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Joined: Jan 2003
Posts: 31,022 Oregon
AndyF
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OEMs don't use one wire alternators so you'll need to go aftermarket. Thank you Andy, and forgive my ignorance. I guess what I really need is one that has an internal regulator to keep the wiring simple. Well are you prepared to build your own brackets? There aren't any bolt on high amp internally regulated kits for big block engines. If you have a small block you might be able to adapt a late model high amp alternator but they don't use serpentine belts. I don't think what you are asking for exists although it could be fabricated by a good shop. I build low mount kits that hang a 90 amp Toyota alternator on a big block. This is the same kit that I use on my '65 Coronet and it works great but it isn't exactly what you are looking for. http://arengineering.com/products/90-amp-low-mount-alternator/
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Re: High amp 1 wire alternator
[Re: Mr.Yuck]
#2979329
10/28/21 05:58 PM
10/28/21 05:58 PM
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Joined: Dec 2004
Posts: 10,552 Rittman Ohio
fourgearsavoy
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I really don't think you need more than a 70 amp Denso alternator. They charge 14.5 volts at idle and are internally regulated so there is one less component to fail. Wiring is easy with the plug from AR Engineering . Now I see Speedway sells a mini Denso unit that has 90 amps and is a one wire deal but I'm not so sure that is the ideal set-up just because I like to have the sense wire on the heavy load. Gus
64 Plymouth Savoy 493 Indy EZ's by Nick at Compu-Flow 5-Speed Richmond faceplate Liberty box Dana 60
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Re: High amp 1 wire alternator
[Re: fourgearsavoy]
#2979336
10/28/21 06:17 PM
10/28/21 06:17 PM
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Joined: May 2019
Posts: 6,240 nowhere
Sniper
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I really don't think you need more than a 70 amp Denso alternator. They charge 14.5 volts at idle and are internally regulated so there is one less component to fail. Wiring is easy with the plug from AR Engineering . Now I see Speedway sells a mini Denso unit that has 90 amps and is a one wire deal but I'm not so sure that is the ideal set-up just because I like to have the sense wire on the heavy load. Gus There are the same amount of components to fail. It's just the regulator is now internal rather than eternal.
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Re: High amp 1 wire alternator
[Re: Sniper]
#2979345
10/28/21 06:55 PM
10/28/21 06:55 PM
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Joined: Dec 2004
Posts: 10,552 Rittman Ohio
fourgearsavoy
I Live Here
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I Live Here
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I really don't think you need more than a 70 amp Denso alternator. They charge 14.5 volts at idle and are internally regulated so there is one less component to fail. Wiring is easy with the plug from AR Engineering . Now I see Speedway sells a mini Denso unit that has 90 amps and is a one wire deal but I'm not so sure that is the ideal set-up just because I like to have the sense wire on the heavy load. Gus There are the same amount of components to fail. It's just the regulator is now internal rather than eternal. 32 years as a Toyota tech and I have seen very few fail so I see it as a non issue. I've seen brushes, stators, rectifiers, and commutators wear down to the shaft but the regulators maybe replaced 5 in my entire career Gus
64 Plymouth Savoy 493 Indy EZ's by Nick at Compu-Flow 5-Speed Richmond faceplate Liberty box Dana 60
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Re: High amp 1 wire alternator
[Re: fourgearsavoy]
#2979352
10/28/21 07:07 PM
10/28/21 07:07 PM
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Joined: May 2019
Posts: 6,240 nowhere
Sniper
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I really don't think you need more than a 70 amp Denso alternator. They charge 14.5 volts at idle and are internally regulated so there is one less component to fail. Wiring is easy with the plug from AR Engineering . Now I see Speedway sells a mini Denso unit that has 90 amps and is a one wire deal but I'm not so sure that is the ideal set-up just because I like to have the sense wire on the heavy load. Gus There are the same amount of components to fail. It's just the regulator is now internal rather than eternal. 32 years as a Toyota tech and I have seen very few fail so I see it as a non issue. I've seen brushes, stators, rectifiers, and commutators wear down to the shaft but the regulators maybe replaced 5 in my entire career Gus I've replaced one regulator since 1988 in my Mopars and it was an old mechanical style one in my 64 300. So it's a non-issue for me. In fact the only time I ever had a problem with a Mopar style alternator was when I bought a chrome one at a swap meet in San Diego. Turns out one of the windings was poorly soldered, fixed it, still have it, 30+ years later. Another non-issue. The only reasonable reason to use a one wire is to slightly clean up the wiring harness. I prefer parts I can get at a parts store, which a one wire isn't. Note this is NOT the same as running the Denso with an internal regulator as those are NOT one wires.
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Re: High amp 1 wire alternator
[Re: Sniper]
#2979390
10/28/21 08:36 PM
10/28/21 08:36 PM
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Joined: Jan 2003
Posts: 31,022 Oregon
AndyF
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The 60 or 90 amp Denso alternators that I use on my conversions can be installed with 2 wires but 3 is what is recommended. Charge wire, turn on wire and sense wire. If the car has been rewired and has a good harness then the turn on and the sense can both be connected to the same 12 volt source. I usually run wires to each so I do a 3 wire install.
I haven't looked in my Denso catalog but I would assume that there is an off the shelf Denso alternator which is internally regulated, high output and has a pulley for a serpentine belt. It sounds like that is what the OP wants. Once the OP finds an alternator he likes then he'll need to fabricate a bracket system to hold it in the correct location.
Here is the 90 amp Denso that I used on my '65 Coronet. This alternator came off of a Toyota Land Cruiser.
Last edited by AndyF; 10/28/21 08:40 PM.
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Re: High amp 1 wire alternator
[Re: fourgearsavoy]
#2980220
10/31/21 12:49 PM
10/31/21 12:49 PM
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Joined: Mar 2010
Posts: 1,061 Atlanta, GA
mgoblue9798
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I will be using it to charge a bank of 4 1000 amp batteries in my motorhome. I will be boondocking and hope to be able to charge them from 50% to 90% or so while travelling from one place to the next. Also the motorhome does not have dash a/c only rooftop, so power while on the road will have to come from either the battery bank or I will have to run a generator while going down the highway. Not really too keen on the second option. I did find this website with some good info for anyone that may be interested in doing something similar. Lots of good info. https://alternatorparts.com/
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