Alternator upgrade

don_deezy
Posts: 33
Joined: Sat Oct 10, 2009 2:39 pm

Re: Alternator upgrade

Postby don_deezy » Thu Feb 18, 2010 10:57 pm

ok man your right, im wrong, experience has taught me nothing. Theory is everything, practical application is nothing. Im not going to argue about it.

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2004 Chevy Aveo
2 TF1 18's, 1 Stetsom 2K5D.2, 1 NSB90, Lots of 1/0 wire
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AveoRob
Posts: 84
Joined: Tue Sep 22, 2009 9:04 am

Re: Alternator upgrade

Postby AveoRob » Wed Mar 03, 2010 3:27 pm

edited
Last edited by AveoRob on Wed Jul 14, 2010 2:38 pm, edited 1 time in total.

don_deezy
Posts: 33
Joined: Sat Oct 10, 2009 2:39 pm

Re: Alternator upgrade

Postby don_deezy » Wed Mar 03, 2010 5:04 pm

i was running 4975 watts clamped power a year ago from an atomic AT5000.1D with NO fusing on the 5 runs of 0/1 power wire. Subs wired to .25 ohm nominal, .8 ohm after rise.
Image
2004 Chevy Aveo
2 TF1 18's, 1 Stetsom 2K5D.2, 1 NSB90, Lots of 1/0 wire
Image
Image

don_deezy
Posts: 33
Joined: Sat Oct 10, 2009 2:39 pm

Re: Alternator upgrade

Postby don_deezy » Sat Mar 06, 2010 12:11 pm

if you would like to go look at my build thread, youll see that i clamped my power. My starting impedance is 1 ohm. Yet when you calculate the impedance clamped you will find its ~3 ohm. Can you explain this? Its called impedance rise. You will also note that its ~5200 watts.
Image
2004 Chevy Aveo
2 TF1 18's, 1 Stetsom 2K5D.2, 1 NSB90, Lots of 1/0 wire
Image
Image

Matt
Posts: 29
Joined: Wed Nov 04, 2009 12:26 am
Location: Baltimore, MD

Re: Alternator upgrade

Postby Matt » Sat Mar 06, 2010 8:21 pm

I've been following this thread for awhile now, and I think there's one main disagreement here.
You can run a huge amount of wattage off of just a battery and caps, but only for very short periods (ie spl competitions) but if you intend on running it for a half hour or so while you are driving you are going to need a larger alternator to keep your power up.

AveoSwagg09
Posts: 91
Joined: Thu Oct 01, 2009 9:49 pm
Location: Jacksonville, Fl.

Re: Alternator upgrade

Postby AveoSwagg09 » Sat Mar 06, 2010 9:05 pm

Or ultimately more batteries.

Matt
Posts: 29
Joined: Wed Nov 04, 2009 12:26 am
Location: Baltimore, MD

Re: Alternator upgrade

Postby Matt » Sat Mar 06, 2010 10:04 pm

fairly true, although it is still dependent on how long you are running it for.

don_deezy
Posts: 33
Joined: Sat Oct 10, 2009 2:39 pm

Re: Alternator upgrade

Postby don_deezy » Sun Mar 07, 2010 10:11 am

how many of you have actually done an install of this size before?
Image
2004 Chevy Aveo
2 TF1 18's, 1 Stetsom 2K5D.2, 1 NSB90, Lots of 1/0 wire
Image
Image

Matt
Posts: 29
Joined: Wed Nov 04, 2009 12:26 am
Location: Baltimore, MD

Re: Alternator upgrade

Postby Matt » Sun Mar 07, 2010 10:25 am

I haven't run that large, I am fairly impressed. The last big stereo I worked with was fused at a total of 150 amps and ran off 2 batteries and 2 caps. It was running 4 10's in a bandpass box in the bed of an s-10 ported through into the cab. After burning out the oem alternator it was replaced with a 200amp one.

Sublimed Aveo
Posts: 72
Joined: Fri Jan 15, 2010 1:08 pm
Location: Hamilton, Ontario

Re: Alternator upgrade

Postby Sublimed Aveo » Sat Mar 13, 2010 9:36 am

The system being built isnt for competition burps, I just want something LOUD for my commute to work everyday. So, looks like the downsizing of what I had planned originally isnt a bad idea, since a 300 or greater amp alternator is out of the question under these hoods

The GREEN Machine


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