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Dual Alternator Kits

Thinking of manufacturing bracket kits to run a second alternator

Re: Dual Alternator Kits

Postby wads24 » Jun 29 2011, 5:09am

Luke300zx wrote:Ok everyone. Basically I'm thinking about tackling a project of making dual alternator bracket kits that would allow you to run at least 2 alternators (I'm going to try and make one that will fit 3 if needed).

It would be made out of almost half an inch steel plate and have high quality hardware used with it. It will be manufactured in the USA (thank god something still is). These kits usually go for around $350. I'm just shooting a ballpark price out there but depending on how many people are interested and how expensive the manufacture is going to be it will roughly run between $150-$200.

I'd like to get some feedback on who would want one so I can get a rough idea of how many I should have produced with the first batch here in the next few months.

If you don't know what a dual alternator kit is. Here is a link to the cheapest one Austin could find.

Image

Thanks again for any feedback you can give!


I have a really big amplifier that has a 200 amp draw, and that is why I would need to alternators on my vehicle. I would be interested if you could reproduce the quality of the above images.
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Re: Dual Alternator Kits

Postby ASTE25 » Mar 23 2012, 12:57am

taphillips2 wrote:i could actually use two alternators, i run alot of strobe lights for my fire dept and it would be very useful

Switch to the new LED's and you won't have near the draw. They last longer and are a lot brighter.
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Re: Dual Alternator Kits

Postby TexasEdition » Jun 05 2012, 5:50am

I know this is an old post, but where did you end up with this? I am getting a Mechman 270a alternator and would still like to run my stock alternator. I will be drawing 405 amps with my trucks stock electrical and my car audio equipment.

Factory NBS Silverado and Sierra like my 2008 Sierra with dual electronic fans and fog lights draw 148 amps. Then add my 3700wrms stereo and you end up with 405a. So a 270a alternator + the factory 145a alternator is 415 amps. Perfect for my stereo and still gives me room for more draw amperage such as my 400w power inverter.

If you guys are wondering the pros for this, just check out this calculator. Its a great calculator and gives you an idea on what kind of current you will be using.

http://www.qualitypowerauto.com/pages/A ... ulator.php
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Re: Dual Alternator Kits

Postby tonyvan22 » Sep 11 2012, 1:30am

Also wondering where this ended up? I have a 1992 Chevy K1500 5.7L V8. Need this bracket badly. Wondering if you could make one
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Re: Dual Alternator Kits

Postby cumminsmannow » Dec 07 2013, 12:09am

has anybody bought this kit or built one? I am thinking about building one myself but they all say that they come with an exciter wiring harness relay. What exactly is in this harness? they dont show any pics of it so I cant even see if there is anything in it besides a jumper wire.
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Re: Dual Alternator Kits

Postby tonyvan22 » Dec 07 2013, 4:07am

I just run two batteries between a 200 amp battery isolater. I also had my alternator rebuilt to 200 amps. Never have a problem. Run many auxiliary lights. As well ad a Snow plow. And three 12 in subs on a 1500 watt Amp.
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Re: Dual Alternator Kits

Postby jupitorhalo » Dec 07 2013, 12:31pm

I suppose two of everything is always better....but....I would put the money into a second battery. Batteries are storage devices, where you get energy from. Alternators are just generators.

It's like getting 5 extra solar panels instead of getting more batteries.

Batteries work when the engine is off. Alternators don't.
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Re: Dual Alternator Kits

Postby cumminsmannow » Dec 07 2013, 1:35pm

I already have 2 batteries but the 105 alternator just isnt cutting it while im plowing parking lots.
Im worried about spending $359.00 on a green alt when i could cut out a plate and fab up the bracket for a second one for free and just pick up a $100.00 alternator.


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Re: Dual Alternator Kits

Postby tonyvan22 » Dec 07 2013, 3:27pm

I see your dilemma. You could always get a smaller pulley for your current alternator.
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Re: Dual Alternator Kits

Postby cumminsmannow » Dec 07 2013, 5:19pm

i have thought about that but dont think it will help a ton. maybe if i put the 160 or whatever alt in and put a smaller pulley on that but i just figure adding a second one would be just as easy
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