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Dual Alternator or Custom bracket ANYONE?

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I'll ask first: Does anyone make an adapter bracket for a dual alternator setup, have a dual alternator package or information as to this possibility?

The request: Please someone make one.

The only option?: I believe I've heard rumor that the new medium duty Dodge trucks (i. e. cab and frame) with the 6. 7L Cummins will finally address the option of having dual alternators as Ford has offered for many years and Chevy started offering 4 or so years ago I believe. Then there is the question if this will fit onto current 5. 9L engines and/or gen 1's or gen 2's.
Additional info: I have done exhaustive searches through forums and online companies, including custom application companies such as Kilby Enterprises (on-board air compressor systems), Premier Power (on-board welders) and the like for anything that might work or even be slightly modifiable to work... all with no luck. </< p> This is not the place to debate over a larger alternator option vs. the dual one I'm looking for. I'm well aware of many larger or custom high output alternator options, thank you though.

The only other option would be custom fabrication but I believe there is enough of a need to make it a "standard" piece of hardware. I've read so many places where guys have large power needs in camper applications or incredible off road vehicles w/ lights and winches, plow trucks etc. Their only option and often performed solution was to go to a single, high output alternator. Except there are problems with that solution such as longevity (most only last 2 yrs or so) and availability (custom) if it should fail. Dual alternators eliminates both of those problems and gives a total output greater than most of the single high output alternators for far less money (neighborhood of $150 vs. $650). There are many other positives to dual alternators also such as multiple wiring/charging setup options too.

Any information would be greatly appreciated!</< p>
 
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I have a problem with my dodges electrical cicuits, but I believe my problem has to do with my crappy computer regulator. If I rev up the engine my trucks lights brighten for a split second then get dim as crap. Then normally with more rpms lights should get brighter but mine stay dim as a candle. It really sucks and what sucks more is my local dodge dealer sucks big time. Thats why I just started today with a new shop. its a medium and heavy duty truck shop the problem is they can't do much cuz the rep tells me to see the dodge dealer and I told him straight up the dodge dealer has a dumbass in every department sale, service, and parts he didn't seem to like the comment but I told him the dodge dealer was worthless the first time he asked me why I had a 1 ton dodge at his shop for repairs. But anyways maybe you should try finding a way to adjust the regulator on your alternator so you can get more. It might be something as simple as a reprogram to teh computer.
 
DerekW,
Thanks for your idea but I have no such problems... with my current alternator or my dealer (thankfully). I just need the ability to run two alternators. For my personal setup I want the combined output capacity as well as instant "backup" if one should fail, sort of like along the same lines as the reasons we have the dual battery setup in our trucks.

Dave
 
im positive i/many of us could fab one up to use a one wire gm or something but thats not what u want? if a kit doesnt exist u have to start somewhere u seem motivated get some preorders together and get them made. thats how "kits" get done, let us know how u make out or if u need help were here . i have a 99 so i cant say a duel in mine would work in urs? its all in the details. :)
 
i think his point was to have a simple "spare" as well as high output. but 350 amp? DANG!! w/liquid cooling must be big, neat though.
 
Yes, DCreed has it right, I am looking for two (2) alternators to run for many benefits but top of the list are an easy spare, already in place and charging, very cheap to replace (around $100ea) and easy to find "off the shelf" in any common parts store as well as high current (280Amps if 140ea standard GM units are used, 320A if high current 160A Dodge units are used but more expensive - still less than a single "ultra high output" unit like 350A and up). Headshot, I tried to access the link for your alternator but the page would not load for me tonight, maybe later. I'd like to see the price for such a unit. Bet it's high, a lot higher than the $200 I propose for my setup (plus bracket).

DCreed, liquid cooling actually makes the unit smaller since the cooling medium is so much more efficient than air. Units like this have been used on Cadillac NorthStar engines for the last 5 years or so. Much more complicated to hook up (cooling lines and flow rates, etc. ) and more than I want to get involved with for my idea, plus expense. And more information to your response back on 4/27... If I were to fab up something (or have a friend do it) I do have access to all three generations, a 2001 & a 99 (2nd gen's) an 89 (1st gen) and of course my 06 (3rd gen) for fitment amongst those models (no access to 07. 5's and up though). Actually I do have plans to have a friend who is a professional do just that but he is tied up til Fall at least so it will be a while yet. Thanks for your ideas though and I welcome all input!
 
Didn't Earthroamer use a dual set-up to charge his camper batteries?



Yes, I just checked at Earthroamer.com. He has used this approach since the 2nd Gen Dodge version.
 
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Let me ask something. Is the reason for the dual or larger alternator for low RPM or high?



The factory alternators are not known for idle output. Also, how much total power do you need?



A friend of mine owns PA PERFORMANCE, www.paperformance.com and they are pretty well known in the street car world for new / high output alternators ... but they are working on a dodge diesel alternator for a customer who needs more low speed power.



This is a stock type alternator, but new, not parts store reman, but makes like 125 amps at idle and about 180 at around 1400 engine RPM. Not sure if this is the right direction, but something to consider.



I asked him and they expect to have it in production soon, sometime in August. They are doing it anyway for someone, but we could probably ride the coat tails if it will help. Just at thought. Here is a link if you want to see it, and if you have any questions post or PM me and I'll ask him.



PA-Performance is dedicated to offering high quality products to every consumer utilizing the Internet. - PA Performance - You Only Buy Quality Once ! 1. 877. 471. 8010
 
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I was talking to my friend at PA. They have the units done but they are looking for trucks and pictures to make sure the year and model data is right.



Across all the years of the 5. 9 diesel there are two or three plug styles, at least two mounting configurations and even two different output post sizes. If anyone has the ability to take pictures - they need a couple shots of the mounting bracket, the plugs and an overall shot of the area it mounts.



If you have an alternator off of the truck all the better for pictures. If you take pictures please include exact year and model info so they can database that accurately.



You can post them here or PM me, or better yet, email them directly to -- email address removed -- I am sure any help we give would be given back in a discount to members here.
 
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why not talk to a alt rebuild shop and see if they can up the output on your stock alt ? my last truck had one like that that worked great never had to fuss with it no extra belts or anything I believe it was double that stock put out .
 
The 3rd gens use a generator and not an alternator. The ECM controls all of the power distribution, battery charging, etc. Not sure how this will affect any dual setups. This is from 06 DR Service Manual, maybe it will help:



The charging system consists of:

² Generator

² Electronic Voltage Regulator (EVR) circuitry within the Powertrain Control Module (PCM). Electronic Control Module (ECM) for diesel engines.

² Ignition switch

² Battery (refer to 8, Battery for information)

² Battery temperature sensor

² Check Gauges Lamp (if equipped)

² Voltmeter (refer to 8, Instrument Panel and Gauges for information)

² Wiring harness and connections (refer to 8, Wiring Diagrams for information)



OPERATION

The charging system is turned on and off with the ignition switch. The system is on when the engine is running and the ASD relay is energized. When the ASD relay is on, voltage is supplied to the ASD relay sense circuit at the PCM (ECM Diesel). This voltage is connected through the PCM (ECM Diesel) and supplied to one of the generator field terminals (Gen. Source +) at the back of the generator.



The amount of direct current produced by the generator is controlled by the EVR (field control) circuitry contained within the PCM (ECM Diesel). This circuitry is connected in series with the second rotor field terminal and ground.



A battery temperature sensor, located in the battery tray housing, is used to sense battery temperature. This temperature data, along with data from monitored line voltage, is used by the PCM (ECM Diesel) to vary the battery charging rate. This is done by cycling the ground path to control the strength of the rotor magnetic field. The PCM then compensates and regulates generator current output accordingly.



All vehicles are equipped with On-Board Diagnostics (OBD). All OBD-sensed systems, including EVR (field control) circuitry, are monitored by the PCM (ECM Diesel). Each monitored circuit is assigned a Diagnostic Trouble Code (DTC). The PCM will store a DTC in electronic memory for certain failures it detects.



The Check Gauges Lamp (if equipped) monitors: charging system voltage, engine coolant temperature and engine oil pressure. If an extreme condition is indicated, the lamp will be illuminated. This is done as reminder to check the three gauges. The signal to activate the lamp is sent via the CCD bus circuits. The lamp is located on the instrument panel. Refer to 8, Instrument Panel and Gauges for additional information.
 
Dave, did you ever get this done? I like everything about it except there seems to be conflicting information out there on how to wire up dual alts. I would like to do this with my plow truck (K5) since the single alt struggles to keep up and I have some other alts just laying around. I'd rather use one battery, but I guess a second alt connected to a second isolated battery to run the plow would work as well.
 
Hmmm. I'm thinking the best route to meet the request is to install a common GM or similar alternator that is internally self-regulated. The normal ECM would then continue to control the factory alternator, trimming it down as needed or up to maintain the setpoint voltage. The Aux. alternator would do what it can based on it's setpoint, which probably wouldn't be the same setpoint as the factory unit. At any given time, one alt might be pulling the load more than the other, yet on really heavy draw, both alts. would be well loaded and system voltage would be maintained. That gives you easy access to standard parts; no screwing with the factory wiring at all other than paralleling the alternators; and all you need is a custom bracket and belt assembly. I'm thinking the mechanical part of this is harder than the electrical part. I like the idea of the common parts. Methinks if the A/C wasn't needed, or you could find a serpentine belt that it longer, mechanically this would work out pretty easy.
 
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