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electrical upgrading for 2k watts


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mazzasec 
Copper - Posts: 93
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Joined: November 08, 2007
Posted: November 29, 2007 at 10:24 PM / IP Logged  
so i could just get a 70 amp alternator and just add it into my car with the 130 amp one?
haemphyst 
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Platinum spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spacespace
Joined: January 19, 2003
Location: Michigan, Bouvet Island
Posted: November 29, 2007 at 10:34 PM / IP Logged  
Not likely. Dual alternators usually involve relatively elaborate fabrication, and FAR more time, all adding up to more COST than buying a properly sized alternator in the first place. Not only that, but the alternator, being a current source just like your battery, needs to have identical outputs, otherwise your total output, (if you were to add a 70A) will be a grand total of 140A - 70A each... Power supplies (alternators, batteries, AC-DC power convertors, WHATEVER it is...) won't know that one is rated higher current than the other one... Once the 70A is reached, the lower current one will crap out, frying itself, trying to keep up with the 130A one.
It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
jmelton86 
Gold - Posts: 1,228
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Joined: February 07, 2007
Location: South Carolina, United States
Posted: November 29, 2007 at 10:59 PM / IP Logged  
It'll work if he's only charging the sound system with the aux alternator, won't it?
2013 Kia Rio -90a alternator
DDX470HD GTO14001 GTO1014D (x3)
Big3 in 1/0G
1/0G to GTO14001
aznboi3644 
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Joined: May 01, 2006
Location: United States
Posted: November 29, 2007 at 11:43 PM / IP Logged  
70 amp alt is nowhere near enough to sustain a +200 amp draw system
jmelton86 
Gold - Posts: 1,228
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Joined: February 07, 2007
Location: South Carolina, United States
Posted: November 29, 2007 at 11:48 PM / IP Logged  

True. True. Don't know what I was thinking, if I was at all!!

2013 Kia Rio -90a alternator
DDX470HD GTO14001 GTO1014D (x3)
Big3 in 1/0G
1/0G to GTO14001
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