BatmanXJ

I have read a ton of stuff on both. I can see the benifit of both. Trying to decide which I want to do.

OBO- My Pro's:
Would be great for airing tires.
Using air tools.
Cleaning out the engine bay
Airing up mattress on camping trips.

Cons: Cost.
I am removing my A/C compressor for a reason. I would have to buy practically everything and would most likely cost around $600 to do it the right way.

Dual Alt: My Pros: (I have better knowledge of electronics)
(I would set up independently on a second battery)
Power for all the lights I could want. Noon at midnight.
Would help with winching
Dual 2 speed fans if desired.
Could set up for OBW (on board welder)
Could power a electric Air Compressor
Cost would be minimal to start with. I have everything I need to install. (not including all the extras, to have it there and be able to run the engine with no wires attached to the second alt)
Would have a spare if the main died.
Cost for this would be Wires, Second battery, and what ever else I wanted to turn it into.

Cons:
Lots of Jucie if improperly wired could cause a fire lol. I would wire it correctly though.
I would regret not doing OBA later lol.


What other Pros and cons are there for doing one or the other.

Answers that would be pointless= Buy a high output Alternator and run OBA.
I know that I could do that. That is not the point of this thread.

Specifically looking for pros and cons to each?

Also what you would do if you could and why?

wiggles

Oba wouldn't cost $600 even with braided ss line back to the tank, if you run led you get a lot of light with little power so that would be whatever

BatmanXJ

For OBA to be able to do more than what an second alt could do it would need to be able to run air tools.
For that it would cost close to $600 for the york and everything.

With second alt
I could have an electric compressor to air up tires would cost me around the same as just doing a compressor and tank that would take a while to fill up. At the same time all the other benefits of having more juice.


Led Lights are also a lot more expensive.

I guess to be honest I am almost sold on doing the second alt. I have heard/read where having only OBA would benefit (without costing a pretty penny) more than second alt.

wiggles

Can run air tools off of the stock pump

BatmanXJ

That I will have to buy. Like I said im removing compressor because there is an issue. So if I have to buy something im going to buy quality. I know what can be done to make either option work. Im not looking for install cost issues.

Im looking for other ideas I haven't coverd. On cons to having either ir pros to either.

Nathan9Mile

My work sells uses stock compressors for like 37bucks with a 6 month warranty or a pick and pull for 8 bucks. No need to go brand new if you can find a quality used one.

Demonoid369

Ive never understood why everyone thinks they need a dual alternator just upgrade the main power wires, and get a high output alternator like a 136 or 150, that alone will give you all the power you would need for light, winch, tools, tank, etc.... my set up if I had the time and money would be: 136/150 amp alternator, upgraded wired(5-90) a high idle switch to bring the power up, and a power converter. then if you want air, hook up a compressor and a tank and viola! you'd be fine

Demonoid369

why a york? there are plenty of high cfm compressors that are stand alone that you can wire and rig to run off the batter or second if you had one that can fill a tank quick. and keep it full as you use power tools

uber

factory a/c compressor puts out 8cfm (which will fill a 2.5 gallon tank from 0-150psi in less than a minute).. high $$$$ electrics are usually no higher than 4cfm. you can try running air tools off that, but you're going to spend half your time waiting for the psi to build back up in your tank. no thanks

my money?

1. stock compressor with tank in the rear and quick disconnect front and rear .. ~$150
2. second battery and an isolator, along with upgraded cables .. ~$150-200
3. upgraded alternator .. $?

second battery (preferably deep cycle) would allow me to have lights, stereo, etc on for longer without the engine having to be up and running. would also provide more available amperage for my winch if needed.

worst case scenario we both hydrolock in a puddle.. my duel batteries will give me a better chance of winching myself out so i can try and get it running again. your setup (which you will have likely spent more on) depends on your vehicle running for it's power. chances of you being able to get yourself out are slimmer

HudsonN

$600 to run a york? Is that in pesos or what?

$200 max for compressor.
$50 for bracket to mount it.
$100 max for piping/check valve/pressure switch.

Total:$350.

Could honestly probably do it for cheaper.

cruiser54

I'm with you. Dual batteries, wired together, with a high output alternator works great.

BatmanXJ

No body can read the original post I guess.

tobyw

Seems like people are reading it just fine to me...

Regardless, it's pretty clear you have already made up your mind, so what's the real point of your thread? Are you just looking for affirmation that dual alternators are a better idea than OBA? Since most of us have more use for compressed air than higher-than-factory amperage output, it's going to be tough to get a lot of those responses. Maybe try a stereo or auxiliary light oriented forum to get the replies you are pining for?

Pigeon

I have an idea. How about installing a dual alternator setup? That should work great for you.

BatmanXJ