We really do need pics.... HF exclusive light bars.... nice....

Good Job Moosenubs.....

 

pics will come when i do the next one.hopefully i will have a new camera.i still need to know when this forum raffle is.i would love to doante 1 of my pieces,heck,maybe even some shock extenders,light bar,intake.all good parts for you guys

 

I just Bought the pre runner so as soon as i get the light bar ill post pics up with them all installed, my question is what kind of lights to go with and are 6 additional lights besides my regular headlights and fog light over kill on my battery?

 

i think you might see a little draw,but i have had 6 lights on a truck b4 and didnt have a problem

 

Does anyone know what the alternator for the H3 is rated at?

Also, does this equation fly for calculating amp draw for lights?

Light wattage / Voltage = Amps

So...in my case, if I wanted 4 KC's on the roof and 2 on the bumper:

130w / 12v = 10.8 amps

6 (lights) X 10.8 amps = 64.8 amp load on the system with all lights working.

For me, on my last project truck, that was the ideal setup. However, I ended
up putting a hi-output alternator and dual 900cca batteries on the truck with
an isolator......That was a huge draw on the stock 90 amp alternator....hence the mods.

Just some food for thought.....

Comments, corrections, suggestions.....?????

 

Gunner...

I think the H3 Alt is 130 amps....

Your formula is correct. Ohm's Law: The rate of the flow of the current is equal to electromotive force devided by resistance.

 

that sounds right

 

130 ought to cover it...........

I gave it a half *** search then got distracted ........

 

Here is the other thing I had in the back of my head regarding amperage draws
and how they related to the '07 H3 specifically. Turns out it is no biggie, just
one of those things that nag at you. Especially on a vehicle that is so sensitive
to voltage fluctuations.........

From Four Wheeler Mag on the new '07 H3 power and economy improvements:

Hummer's Daryl Ehrlich, Development Engineer, Energy and Drive Quality, summed up the goals of the project by saying: "Our goal was to improve acceleration performance and driveability with the new 3.7L engine, yet minimize impact to fuel economy by implementing new technologies like Regulated Voltage Control and a high-efficiency alternator."[/align][/align]Blah, blah, blah....and......[/align][/align]
Finally, as stated earlier, fuel economy was also a major concern. With that said, the team integrated Regulated Voltage Control into the mix. Quite simply, this system shuts down the alternator when voltage isn't needed, thus elimin-ating drag on the engine. The result is a larger engine that makes more power than its predecessor but suffers no decrease in overall fuel economy.[/align][/align]

 

rock on.i didnt know that