Re: Most powerful alternator on stock wiring
[Re: xyxxjx]
#2127755
08/08/16 11:49 AM
08/08/16 11:49 AM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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I wasn't able to find this 78 amp alternator. Anyone have a link to one? the OE 78 amper is one of three alts listed for an '85 Diplomat
live every 24 hour block of time like it's your last day on earth
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Re: Most powerful alternator on stock wiring
[Re: Supercuda]
#2127942
08/08/16 03:21 PM
08/08/16 03:21 PM
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Joined: Jan 2005
Posts: 3,699 Newport, Mi
Evil Spirit
master
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master
Joined: Jan 2005
Posts: 3,699
Newport, Mi
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If you do the amp bypass, run a large wire directly from alternator to battery relay, you won't have to worry about the stock wiring carrying the load. Battery relay? You realize that all electrical loads are, by design, supported by the alternator when the engine is running. All your "trick" does is feed the battery direct, everything else still pulls off the stock wiring and now you've severely increased the load on the wiring from the battery to the fuse box. Prior to your "trick" that load came from the alternator output to the fuse box. This is a poorly thought out "cure" for a problem that shouldn't exist. I guess the success of the "trick" varies by how you wire in a relay. Pretty simple to wire a relay in so the relay charges the battery and the fusebox only carries the rest of the load. Personally, I don't use a relay - pretty easy to get the same results without using a $30-40 relay. You simply split the alt output to feed both the battery and fuse block, not the battery through the bulkhead and back out. And I agree - the problem shouldn't exist - pretty stupid for Mopar to charge the battery through 2 bulkhead connectors and interior wiring.
Free advice and worth every penny... Factory trained Slinky rewinder.........
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Re: Most powerful alternator on stock wiring
[Re: crackedback]
#2128065
08/08/16 06:41 PM
08/08/16 06:41 PM
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Joined: Feb 2013
Posts: 206 Los Angeles CA
xyxxjx
OP
enthusiast
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OP
enthusiast
Joined: Feb 2013
Posts: 206
Los Angeles CA
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Seem to be a lot of conflicting opinions on this. Maybe I should just leave the old one in, at least till I get around to bypassing the ameter.
1973 Dodge Charger SE 400 automatic transmission. Curb weight: 3800 lbs. All stock so far.
Goal: Reliable everday driveable warmed up 400 as close to 400hp as possible, then a 470 stroker if need be.
Don't protect a feminist when the collapse comes!
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Re: Most powerful alternator on stock wiring
[Re: Supercuda]
#2128124
08/08/16 07:59 PM
08/08/16 07:59 PM
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Joined: Jan 2003
Posts: 27,421 Balt. Md
383man
Too Many Posts
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Too Many Posts
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Posts: 27,421
Balt. Md
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If you do the amp bypass, run a large wire directly from alternator to battery relay, you won't have to worry about the stock wiring carrying the load. Battery relay? You realize that all electrical loads are, by design, supported by the alternator when the engine is running. All your "trick" does is feed the battery direct, everything else still pulls off the stock wiring and now you've severely increased the load on the wiring from the battery to the fuse box. Prior to your "trick" that load came from the alternator output to the fuse box. This is a poorly thought out "cure" for a problem that shouldn't exist. If he leaves the factory wiring hooked up and just runs another wire from the alt output to the battery the alt will still feed everything in the car like stock which is through the bulkhead to the ign switch side of the ammeter which feeds everything in the car. But now the battery is not getting charged back through the bulkhead and through ammeter and then the bulkhead again out to the starter relay and fuselink and back to the battery. He would also render the amp gauge from working right. Course if he eliminated the stock alt output and only ran a wire to the battery then the output current would go to the battery and then go from the battery back through the stock wiring to the starter relay and then through the fuselink and bulkhead through the ammeter in the wrong direction and feed everything in the car. Myself I would clean the bulkhead connectors or eliminate the alt and hot feed bulkhead connectors and leave the stock wiring in place and maybe upgrade any wiring that might need it and also run another alt output right to the battery. And then put a voltmeter in the car to moniter the charging system. That way the battery will charge through the one new wire you put in and the alt will also supply the car through the stock alt output wiring which would be through the bulkhead to the hot feed on the ign switch side of the ammeter which feeds everything in the car. Ron
Last edited by 383man; 08/08/16 08:01 PM.
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Re: Most powerful alternator on stock wiring
[Re: 383man]
#2129080
08/09/16 11:36 PM
08/09/16 11:36 PM
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Joined: Feb 2013
Posts: 206 Los Angeles CA
xyxxjx
OP
enthusiast
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OP
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Los Angeles CA
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Would you guys say this is the most correct way of doing it? (Diagram on top of page) http://www.madelectrical.com/electricaltech/amp-gauges2.shtml
1973 Dodge Charger SE 400 automatic transmission. Curb weight: 3800 lbs. All stock so far.
Goal: Reliable everday driveable warmed up 400 as close to 400hp as possible, then a 470 stroker if need be.
Don't protect a feminist when the collapse comes!
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Re: Most powerful alternator on stock wiring
[Re: xyxxjx]
#2129094
08/09/16 11:52 PM
08/09/16 11:52 PM
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Joined: Feb 2015
Posts: 2,079 CA
crackedback
top fuel
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top fuel
Joined: Feb 2015
Posts: 2,079
CA
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Re: Most powerful alternator on stock wiring
[Re: xyxxjx]
#2129170
08/10/16 01:04 AM
08/10/16 01:04 AM
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Joined: Jan 2003
Posts: 27,421 Balt. Md
383man
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 27,421
Balt. Md
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Is it the best ?? There are better ways to do it but it will work ok. Looks like they are drilling the bulkhead and running soldered splices which I have done on bulkheads to eliminate them. Dont forget to seal the hole up around the wires if you do it that way. And of course your ammeter wont work so you can do like most and put a voltmeter on an ign 1 controlled wire. I bypassed my amp gauge and spliced the bulkheads on my 63 and then added a voltmeter. But I was not having any trouble. I figured it was a good idea since the car is over 50 years old. Ron
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Re: Most powerful alternator on stock wiring
[Re: 383man]
#2131249
08/12/16 04:38 PM
08/12/16 04:38 PM
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Joined: Feb 2013
Posts: 206 Los Angeles CA
xyxxjx
OP
enthusiast
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OP
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Joined: Feb 2013
Posts: 206
Los Angeles CA
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Yeah I think I'll put a voltmeter in there, it's pretty handy.
1973 Dodge Charger SE 400 automatic transmission. Curb weight: 3800 lbs. All stock so far.
Goal: Reliable everday driveable warmed up 400 as close to 400hp as possible, then a 470 stroker if need be.
Don't protect a feminist when the collapse comes!
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