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Topic Review (Newest First)
08-26-2014 11:25 PM
tjstillwell Interesting. Now I'm uncertain about what to do. I have to change the 117AMP stock alternator because it's gone bad. I thought I might go ahead and upgrade to 160AMP in the process.

I have a 2001 TJ, 2.5L 4. I'm the only owner; I bought it striped naked with the intention of it being my tinker toy (hobby). It's in great shape. I've done all maintenance and fix-its. That said, the most difficult thing I've done is change a radiator and I'm not at all well versed in the auto-mechanic lingo and have little knowledge about how engines work. 10 years after buying it, I'm really just learning. But now I have the time and money.

I've read tons of threads on alternator upgrades to the point that I'm confused. lol

So...I think these are my questions:
1. Should I even upgrade? (I don't know what toys I might eventually add, but I thought since I had to change it anyway why not upgrade?)

2. If I do upgrade, do I have to upgrade the wire gauge?

3. Will a 2001 Dodge Durango 160AMP work?
07-10-2014 12:40 AM
Jerry Bransford That 500w amp draws only 80 amps peak, you don't need dual batteries and all those other parts to run it as a normal ham radio amp.

The winches many of us pull way more amps than that. A typical winch can easily pull well over than 400 amps on a heavy pull and over 100 amps on just a standard pull... and we get along fine with single heavy duty batteries and the factory 117 amp alternator.

Not to mention it'll only pull that 80 amps when it's transmitting at max peak power. Not something you'd likely much much in a Jeep.

And I'm no stranger to running high power HF rigs up to 1kw.

N6TAY
07-10-2014 12:21 AM
wl7coe Got my answer thanks!

Have a great day!
07-09-2014 02:54 PM
freeskier Why? Why do you not like it being regulated by the PCM? When's the last time you saw a PCM fail, let alone the voltage regulator?

Also I looked up the specs on that amp and at 500 watts a Mean Green alternator seems like a waste of money... Shouldn't have an issue running that on the stock alternator, no different than people running audio amps and it's rare you need an upgraded alternator. If you really think you need more power there are cheaper alternatives like a Durango alternator.
07-09-2014 02:50 PM
wl7coe
Quote:
Originally Posted by Water Dog View Post
If you provide no charging voltage to the ecm, it will probably throw charging codes (1682) and give you a check engine light.
Thank you for a response :-).

The kitts actually comes with a GIZMO to trick the ECM into thinking there is an alternator attached.

Did you look at the kit to see if they are any other concerns? Would appreciate any insight.
07-09-2014 11:32 AM
Water Dog If you provide no charging voltage to the ecm, it will probably throw charging codes (1682) and give you a check engine light.
07-09-2014 11:15 AM
wl7coe
External Voltage Regulator Kit

I am going to be running high power HF radio power amp (ALS-500) . I will be installing dual batteries and a high output alternator such as the Mean Green Alternator to assist providing enough amps to run the HF amp.

My last vehicle, besides the main battery I ran two marine batteries to operate the amp.

Is there anything I should be aware of before installing an external voltage regulator kit? Do folks recommend going this route? I ordered the kit as I am not to comfortable knowing the regulator is housed in the ECM.

Ordered:
External Voltage Regulator Kit for Chrysler Dodge Jeep, Gets the Voltage Regulator out of the Computer
ERCKFRM - Heavy Duty Chrysler, Dodge, Jeep External Voltage Regulator Kit with Field Replacement Module

If anything I will put the kit on the shelf and save for emergency repairs.

Thanks!

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