amperage

[Alacran]

Does anyone know what amperage the stock alternator for a 2001 ga sedan put out? I have been looking everywhere for specs on this car cant find them, Please helpp!!!!!!!!

[Alero1]

105. Not sure where you can find it on the net, but I know it's 105.

[99GrandAMSE]

According to GM, the 2001 Grand AM has the below specifications ...

2.4L

Generator Model ~ Valeo SG10
Rated Output ~ 105 A
Load Test Output ~ 73 A

3.4L

Generator Model ~ CS130D
Rated Output ~ 102 A
Load Test Output ~ 71 A

... hope that helped :)

[Alacran]

Thanks guys for info,

The reason i ask is because im trying to figure out whats the max load of wattage i can put on it, with out bogging down. I want to put an amplifire just to power a sub for a little sound staging, so i dont want to compete or anything like that just maximize my options with out swaping alternators. I heard u have multiply the rms power of the system then divide by 13.8 to get the amperage that will be excerted.

If anyone has input on this matter or know any other way of calculating, or can just tell me about how big of an amp i can run off of my stock alternator i would so appreciate it.

Please add some input.

[R983]

Thanks for the info 99grandamse, you helped me out too, ive been looking everywhere for the true output of the Grand am's Alternators. Ive always seen it the other way around, the GT's having a 105 amp and the SE's having a 102 am, not that it makes much difference. Ive gotten in so many arguments with people about these ratings. Almost got in a fight with someone who refused to believe that GM ever made an alternator that put out over 80 amps..please. Anway the new audio/video setup in my car will be drawing around 90 amps so, im probably going to install a battery isolator, and second battery in addition to a few caps. Hopefully i wont need an upgraded alt. but i really doubt i will. thanks again.

Oh yea by the way, MECP calls for Total RMS of amplifier(s) wattage X 2 Divided by 12.6 Volts at the most. You can do 10.5 if you what a worse case senaro. If its going to be a 2 ohm load then multiply Total RMS wattage by 2 and then by 2 again and divide that number by 12.6 volts.

EX.
4 ohm 250 watts Rms total x 2 = 500/12.6 = 39.6 amps.
2ohm 250 watts Rms x 2 = 500 x 2 =1000/12.6 = 79.3 amps


If you want to find exactly what your Amp is putting out in watts, Use a DMM, to measure your total (peak) AC voltage. say it is 20Volts AC square that number (20) X (20) = 400 and then divide by the resistance or Ohms of the speaker/sub i.e.
(4 ohms ) and you will come up with the peak wattage for that channel which would be 114.2 Watts




Hoped this helped, i was kinda bored,


Rich

[R983]

Also, when your current draw is taking up to 80% of your charging systems output I.E. 84 Amps out of 105 Amp alternator. it is definitely time to upgrade. The first upgrade would be to add a second battery. This will boost your systems current to 110% of its original output. I.E. 126Amps with a 105 Amp alternator. Now you would be drawing 84 amps from a 126 amp charging system. if your current draw still exceeds 110% of the stock alternator/charging system ( over 126 amps) then the only other option is really a high current alternator. If a systems current draw excedes 120% of the stock alternators output , with no upgrades, damage to both the battery and alternator can and most likely will occur. usuially the diods in the alternator burn up.

hope this wasnt too much info, or too long

Rich