Kyle,
I THINK that the voltage will stay reltively the same with the tests that
you performed. You need an ammeter to see what is really going on....Here
is my theory....Voltage will stay close no matter what the load that you are
applying. With all of your accesories on they are pulling a lot of
current(amps), this is putting quite a strain on your stock alternator to
keep up with. In the long run possibly killing your battery prematurely, or
burning out your alternator. I would go with the 120 if I were you it can
only help.
.02
Shawn
--- Kyle Kozubal <grndak4x4@home.com> wrote:
> What is the best way to measure how well the alternator is doing with
> various load and amp draw?
> Aaron, I think you were going to do this with the 75amp alt and also with
> the 120 amp alt. How doyou plan on doing the measuring? I did some quick
> measuring, just not sure how efffective it is in determing how well the
> alt
> is keeping up with the load. I did my test just by taking readings off of
> the battery, if there is a more accurate or better way to get readings let
> me know please. Anyways, here is what I found.
>
> Test Mule: 1993 Dodge Dakota 4x4 V6
> Mileage: 127,400 miles
> Alternator(stock); Nippondenso 75 amp
> Battery:; Champion 4x4 1050 CA-3 years old
>
> First I used a normal Radio Shack 'hand meter':
> Truck Off: 12.5 Volts
> Idle: 13.5 Volts
> Idle with Stock Headlights, CB and Radio On: 13.5 Volts
> Idle with the Above on and also with the 55watt Hella Floods On: 13.5
> Idle with the Above on and also with Hella 55Watt Fogs On: 13.22
>
> Secondly I used a "Amp Champ" Digital 6/12 Volt Battery Tester:
> Truck Off: 12.45 volts
> Idle: 13.45 volts
> Idle with ALL Accessories On: 12.65
>
> What does this mean? What should the numbers be? I still think a 120amp
> alternator is in my near future. Any input???
> Kyle
> 93 Dakota 4x4 V6
>
>
>
=====
00 CC 4X4 Sport, 4.7l,flowmaster cat-back, k&n homebrew open air filter,180 t-stat,autolite 3923's,more to come....
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