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Old Dec 12, 2007 | 03:57 PM
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200amp alt external regulator

I'm going to put a 200 or 300 amp alt in place of the stock 60 amp alt.
My question is will the stock voltage regulator be able to handle the larger alt? If not then how do i make it able to handle it?
Thanks in advance for any and all your help.
 
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Old Dec 13, 2007 | 12:10 AM
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Usually the large alternators like that come with their own built in regulators. Also your wiring will have to be upgraded too.
 
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Old Dec 13, 2007 | 04:06 PM
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just the alt harness or all the wiring?
 
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Old Dec 13, 2007 | 05:29 PM
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Why not just go with 100 amp or 130 amp ?

300 amp alt would be as big as an ice cream bucket
 
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Old Dec 13, 2007 | 07:59 PM
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just the alt harness or all the wiring?
The short answer is all of it. But let me explain. A lot of these large alternators will be one-wire. So all you will have to do is run one large upgraded wire to the battery +.

But, what are you going to be doing with all this power? If you plan on adding a bunch of stuff in the original fuse box, than that is a no no, the stock wiring can't handle it. But if you plan on adding lights, a winch, a plow, invertor, compressor, etc., then you will need to come off the battery + with a new heavy wire to feed another fuse box, which will have large fuses to feed all this extra stuff you add.

So really it depends on what you are planning to do. With all that power, something is going to have to be upgraded somewhere to use it, unless you really don't need a 200 amp alternator.
 
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Old Dec 14, 2007 | 12:01 PM
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The set up for my 83 4x4 F-150. Set of fog lights on the front bumper and a winch later. In the cab three amps, one cb , sirius radio, gps (for my mother when she use the truck) and a small computer for long trips. the bed will have a custom made headache rack to support the stack and mount the air horns to plus a new cargo light. Under the bed four batteries, compresser, air tank and new wiring for trailer. the rear bumper will have a set of fog lights for hooking up a trailer at night.
 
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Old Dec 14, 2007 | 12:24 PM
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I think 200 amps is WAY overkill for that setup
 
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Old Dec 16, 2007 | 06:40 PM
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I would go ahead an plan another aux fuse box under the hood or near the extra batteries you are going to mount. Are these extra batteries going to be deep cycle,and are you going to run a battery isolator?
 
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Old Dec 16, 2007 | 08:04 PM
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Fuse block i'm going to use http://store.summitracing.com/partde...5&autoview=sku
Yes on the deep cycle. Any suggestions for a good deep cycle battery?
Any draw back to just connecting them to the battery in the engine compartment besides
one day all five are dead.
 
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Old Dec 17, 2007 | 11:10 PM
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An 100 or 130 amp Alternator is plenty.
 
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Old Dec 17, 2007 | 11:54 PM
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Any draw back to just connecting them to the battery in the engine compartment besides
one day all five are dead.
There is really no use to get a deep cycle battery, if you are not going to drain it way down. That's why you are paying the extra money for the deep cycle, so you can get all you can out of the batteries, and then charge them back up. If you do this to your engine starting battery you have now, you will ruin it. It cannot take being drained way down and then recharged very much. And also the fact you mentioned that draining them way down is going leave you stranded because it will not start the engine.

The best way to do it is use an isolator for the deep cycle batteries. That way they will be charged by the alternator, but they will only be drained by the aux equipment you hook to them, the engine starting battery will not be drained. And the engine starting battery will still be charged by the battery too. So you can actually run some of your equipment with the engine off, and then when you are finished, start the truck and drive on, because the engine starting battery will isolated from the deep cycle battery loads.
 
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Old Dec 19, 2007 | 12:15 AM
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Look at the links below
Dave
3G will be just fine

http://fordfuelinjection.com/index.php?p=75

http://fordfuelinjection.com/?p=63

http://rjminjectiontech.com/?p=6
http://rjminjectiontech.com/?p=7
 
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Old Dec 25, 2007 | 12:55 PM
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Post

Read my post first to help with the problem:

Quick tests for charging systems-basic

If this is what you are doing then add it up as follows.

Originally Posted by 1983 3004x4
The set up for my 83 4x4 F-150. Set of fog lights on the front bumper and a winch later. In the cab three amps, one cb , sirius radio, gps (for my mother when she use the truck) and a small computer for long trips. the bed will have a custom made headache rack to support the stack and mount the air horns to plus a new cargo light. Under the bed four batteries, compresser, air tank and new wiring for trailer. the rear bumper will have a set of fog lights for hooking up a trailer at night.
Fog lights 50 watts each x two lights = 7 amps

3 amps, 100 watts average, that much alone you will
need a hearing aid in 1 month = 21 amps

CB = 1 amp

Sirius radio = 1 amp

GPS = .25 amps

Computer = 4 amps

Air horns, if they run on an air compressor off the
engine it does not count. If they have an electric compressor then it runs very little so average is 8 lets say = 8 amps

Cargo light, 5 amps if it runs for more than 30 minutes = 5 amps

Fog lights = 7 amps

This comes to around 50 amps and that is with everything on at once.

Why all the batteries? Why 200 amps?
 
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Old Dec 25, 2007 | 02:23 PM
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If you haven't looked at these links then you should. The phone number for the company is there call them and ask for Ryan McCormick and if you don't want to listen to anyone who is advising you about this I'm sorry but why ask.
1st you don't need a 200 amp alt. What kind anyway.
2nd you don't need that many batteries. I work on RV's for a living and
believe me you don't need that many. I guess next your going to mount
solar panels on the roof.
You will need...an isolator. If you don't you will run down all the batteries. Electricity does not discriminate unless you cutoff the flow. Battery minders are also nice to have.
You will also need a mega fuse on that charge line. One spike and everything is toast.
Like you were told, you should run a completely seperate aux setup.
Computers just like stereo equipment also needs a clean input supply.
By the way is there room to sit in this truck or move comfortably?
Dave


 
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