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alternator upgrade enough?


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mrjoeyjiffy86 
Member - Posts: 10
Member spacespace
Joined: January 28, 2008
Location: Florida, United States
Posted: March 02, 2008 at 2:37 PM / IP Logged  
I'm about to get my alternator upgraded to 200 amps. My system consists of :
hifonics txi 4006: (ill be running 100wx2 @ 4 ohms)
and
hifonics bxi 2006d:(ill be running around 1500w @1.5 ohms)
of course there are subs and doodie, but this is pertaining to my electrical. Will the big 3 alternator upgrade be enough? Im still using a stock battery and I dont care about running the stereo with the truck turned off.
2001 Chevrolet Tahoe
Waiting to be installed:
Infinity reference 6022i 6.5 2-way
Hifonics titan txi 4006
Hifonics brutus bxi2006
Pioneer DEH-P780mp
Waiting for my paychecks :(
(2) Jbl W12gti
sedate 
Silver - Posts: 1,173
Silver spacespace
Joined: July 03, 2004
Location: Colorado, United States
Posted: March 02, 2008 at 3:40 PM / IP Logged  

This is questionable - if you intend to have your alternator rewound this can cause all sosts of problems - it sort of changes the 'powerband' of the alternator and generally they end up producing <12v@idle - this would be particularly disastrous for a stock SLI battery that has seen any use.

Honestly - 1700 hifonics watts really isn't that untenable with a stock charging system - I'd start with a Deep Cycle battery, this is important for many more reasons than running the system with the truck off - Optima or Kinetik are the ideal places to start here- I'd be suprised if you exceed 100-amp pulls on a regular basis.  I imagine that this can be done easier, with fewer side effects, with a proper battery.

Anyway - if you are hell bent on a new alt, look into having one built-to-order instead of simply rewound - lemmie see if I can find a link - but this is expensive - very heavy on the $$$.  You'll spend more on the alt than the amps.  

Regardless of your decision here, the Big 3 with 4 gauge (larger is going to be of limited utility for the short runs under the hood) should certainly be done.

"I'm finished!" - Daniel Plainview

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