Running dual alts vs 1 high output

[JakeW]

2016 ram with the 5.7 hemi. I considered making my own bracket as well, I can weld/cut. Wire them parallel, 326a and find another 160a. Should be fairly stout

x2, I would definitely make sure that any alts you run are going to last and perform.

There was a company locally to me that re-wrapped my 130 amp explorer alt into a 180 amp, and it worked very well. If you can do multiple alts, and find a local alt company that is legit, that would be the way I would do it. I mean, the absolute best way would to be fit the biggest and best and most alts that you can from a high end alt company, but if you have the option to do multiple alts, you can just get factory ones re-wrapped into the biggest, safest amperage that they can hold.

You maybe can even run a modified stock alt and get a larger alt casing for you added on alt, where you could maybe have a bracket for a very common GM alt or something. Then you could get a nice GM cased alt or go rob some out of a junkyard and get them re-wrapped. I know there's brackets that can be made to fit a larger case alt where a smaller alternator would be from factory.


OP, what is your vehicle we're talking about here?

 

[Buck 5,000+ posts]

2016 ram with the 5.7 hemi. I considered making my own bracket as well, I can weld/cut. Wire them parallel, 326a and find another 160a. Should be fairly stout

That's good idea to maybe just keep a stock alt or stock re-wrapped one and a really nice one. The stock case on that alt should be big.

 

[JakeW]

Is there any trouble running 2 different size alt in parallel?

That's good idea to maybe just keep a stock alt or stock re-wrapped one and a really nice one. The stock case on that alt should be big.

 

[Buck 5,000+ posts]

Is there any trouble running 2 different size alt in parallel?

A lot of people do that, and it works well.

I'm not sure why you say parallel like that. You'd never want to run alts in series.

 

[JakeW]

Just a play on words sir. “In line” per say.

 

[hispls 5,000+ posts]

Nothing wrong with mom and pop stores like that just have to the rep to back them up.

Except do they have access to the flat wire and high current rectifier parts that the name brands use? The flat wire is a big part of the efficiency gains and more robust components are needed all around.

 

[Firewalker]

Mine does they have been in business for over 75 years. I have no issues with using them for any rebuilds. Been using them since 1993 and my dad before that since the '60s. Plus the one I use is a family friend so I know no matter what I get the service I am supposed to get. The ones around here are just as good. One of the places in Green Bay is known for the local audio guys to go to for a rebuild or buying a new HO alternator.

 

[JakeW]

What’s their info sir?

Mine does they have been in business for over 75 years. I have no issues with using them for any rebuilds. Been using them since 1993 and my dad before that since the '60s. Plus the one I use is a family friend so I know no matter what I get the service I am supposed to get. The ones around here are just as good. One of the places in Green Bay is known for the local audio guys to go to for a rebuild or buying a new HO alternator.

 

[Firewalker]

Out of Illinois in Shorewood, IL. And sadly I don't see a website or anything for them anymore . Gonna have to contact a friend down there and ask if they are still in business. I know that the owner had passed but that his son or nephew was taking over to keep it in the same family. Kinda concerned now after trying to locate them as I haven't heard anything at all.

 

[Slo_Ride 5,000+ posts]

I prefer to run two or more alts. With the vehicles I own it's easy. I even make my own brackets. The newer a car is the harder it gets, there's just no room for two alts.

 

[Bobbytwonames 5,000+ posts]

I prefer to run two or more alts. With the vehicles I own it's easy. I even make my own brackets. The newer a car is the harder it gets, there's just no room for two alts.

What kind of system you running? You never say. For real!

 

[Bobbytwonames 5,000+ posts]

Pros & cons? 2 stock alternators converted gives me 652a peak but unknown idle amps. Cost to convert is $170 plus used alternator cost, plus bracket cost. Mechman or similar 370a peak, 200 something idle amps and they cost $600? Similar idle amps 2 vs 1 but peak is much more with 2. Thoughts? I would also just wire in parellel

One H/O alternator and one bank of lithium in the back. It only weighs 11 pounds and equals about 3 AGM batteries.

 

[Slo_Ride 5,000+ posts]

What kind of system you running? You never say. For real!

Depends on what day it is and what car I'm driving.

 

[Bobbytwonames 5,000+ posts]

Depends on what day it is and what car I'm driving.

Shitt, I'm only running 4 - 8's and I have and AGM, a 320 Mechman and one bank of Lishen lithium. Remember, all that for 4 - 8's.

 

[Slo_Ride 5,000+ posts]

Shitt, I'm only running 4 - 8's and I have and AGM, a 320 Mechman and one bank of Lishen lithium. Remember, all that for 4 - 8's.

Lulz, I ran my four Sundown 8"s on a stock alt. You must be doing something wrong bro. Ok I'll be fair I was only running 1200 watts. I've run a Saz -1500 at 1 ohm on a stock alt. You people read to much internet and don't do enough real life testing. With a stock battery