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post #1 of 19 (permalink) Old 10-21-2003, 09:36 AM Thread Starter
 
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High Output Alternator

After discussing the stereo system that I will be putting in my car with my local car audio dealer today, we came to the conclusion that my Stinger SP1700 battery (as a second battery for the system only) and Audiobahn 5 Farad capacitor would still not be enough to keep up with the 5,000 watts of power that the amplifiers would be putting out without some kind of high output power source to keep them charged. I was wondering if anyone knew where I could find a high output alternator to fit a '93 Thunderbird LX for a decent price. I would like to get one from Stinger but they range anywhere from $700-$900, and I've already exceeded my $4,000 limit on this system, so the funds are gettin' kinda tight. Any help would be appreciated. Thanks.
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post #2 of 19 (permalink) Old 10-21-2003, 09:08 PM
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Factory Supercoupe alternators put out more than the factory 3.8 alternators. I believe the sc's were 130 amp, not sure on the 3.8's...possibly 90 amp? And I believe if you get the 94-95 sc alternator all the wiring harnesses will work together so you might consider that approach. I also know RobinCali has some kind of aftermarket alternator and he has a huuuuge system. Might consult him about it.
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post #3 of 19 (permalink) Old 10-21-2003, 10:18 PM
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Try this. You may have to put nitrous on the motor to keep it spinning with the 205, but... you want amperage, there it is.

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post #4 of 19 (permalink) Old 10-21-2003, 11:27 PM
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Woah and it's chrome too. how cool is that? That deserves a break-dancing monkey
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post #5 of 19 (permalink) Old 10-22-2003, 09:26 AM
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89-93 v6: 75 amp
89-93 sc: 110 amp
94-97 v6, sc & v8: 130 amp

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post #6 of 19 (permalink) Old 10-22-2003, 06:15 PM
 
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in case you didn't already know

A=V/P

5000W peak at 14V nominal voltage = 357.14 amps.
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post #7 of 19 (permalink) Old 10-22-2003, 07:11 PM
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So you'd need like 3 alternators haha. That's kinda funny. This one time I saw a civic that custom mounted 9 alternators and they had holes cut in the hood to fit them all on there. Good stuff.
-Thomas

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post #8 of 19 (permalink) Old 10-22-2003, 08:49 PM
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Quote:
Originally posted by Thomas
So you'd need like 3 alternators haha. That's kinda funny. This one time I saw a civic that custom mounted 9 alternators and they had holes cut in the hood to fit them all on there. Good stuff.
-Thomas
Man, talk about parasitic losses. I wonder if that civic had enough power left over to move the car!

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post #9 of 19 (permalink) Old 10-23-2003, 12:15 AM
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Well it was a show car so it probably didn't move anyway. Civic's hardly have enough power to move stock hehe.
-Thomas

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post #10 of 19 (permalink) Old 10-23-2003, 12:42 AM
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LOL, seems like they could have just made one big generator out of it and turned the idle up to about 2500 or something... ricers ricers ricers

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post #11 of 19 (permalink) Old 10-23-2003, 09:53 AM
 
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well, they could just use a PTO.. oh, wait... transaxles...

Either way, it's 5000W max, and that's what the 5F cap is there for (5F?! holy crap!).

I wouldn't think with its own battery and the cap to smooth things out that you'd need more than 150A or so.
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post #12 of 19 (permalink) Old 10-24-2003, 11:10 PM
 
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not sure, but isn't the alternator for the v6s a 2G not 3G? or does that even matter? Also would the v8 alternator work for the v6's? Maybe I'll just try to find a junked SC(really doubt). but I'm pretty sure I can find a v8's...Maybe I'll just go to Autozone and pick one up for a '94-'97 SC..you sure that's 130 amps right? That should be good enough for my 1500 watt system...Hope so....

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post #13 of 19 (permalink) Old 10-24-2003, 11:51 PM
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With caps you should be able to run 1500 continuous on 130 amps. Dude... that's a lot of power, unless you are talking peaks. If that's the continuous rating, buy some capacitors or an extra battery or a whole bunch of voltage regulators.

A bunch of years ago I ran a system of 500 continuous with 24 plus speakers and four amps in my Bronco. I could shut off the engine at idle with the system at full power. That was before I went to two isolated batteries. Plus, I went from the stock 50 amp to 95 amp alternator. You are talking WAY above that. Remember.... shortages in wires and electrical components can cause fires.

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post #14 of 19 (permalink) Old 10-26-2003, 06:06 PM
 
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I was mainly wondering about the other stuff like if the 2G or 3g makes a difference and if the v8 alternator will work on a v6(bolt up or what not)...if the price isn't that different, I'll just get the 205 amp alternator for $300...worth the money and just to be safe...

I'm going by what site DanQ gave...Looking at the alternators there, would all the alternators work on the v6s? By the formula that Vegeta99 gave, I need at least a 145 amp alternator...Which would be the best alternator of choice? Thanx for the help

Wes
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post #15 of 19 (permalink) Old 10-26-2003, 06:44 PM
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Yup, all 94-95 SC's had 130 amp alternators. There weren't any SC's made from 96-97. Just go in and say "95 supercoupe alternator"
-Thomas

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post #16 of 19 (permalink) Old 10-26-2003, 10:43 PM
 
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Are you sure Thomas? All I see here is that they are only 110 amps...they have reman's which are 130 amps, but I dunno whether to trust them or not...Would the amp from a '99 or 2000 Mustang v6 work?...They put out 130 amps...Some are reman's there too...Guess I'm just weary of the charging system...

Would130 amps be enough though cause as stated before, for 2000W system(2000W @14v nominal= 142.86 amps)...Is it possible to get a stock alternator with about 145 amps, or would I have to get a high output alternator...if so, would the 3G's work on the T-Bird v6s?

Wes

man...All the confusion of this...makin my head spin...
Thanx a bunch for the help though
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post #17 of 19 (permalink) Old 10-27-2003, 12:05 AM
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Everything I've ever heard on these boards is that 94-95 sc's have 130 amp alternators. I'd trust the group of guys on here before I trust what a piece of paper says.
-Thomas

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post #18 of 19 (permalink) Old 10-27-2003, 07:32 PM
 
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The SC alt should bolt on as far as I remember. But there is something else I'm not sure about and it's possibly a different pulley. I mean, you can just swap it with your old alt but I thought I would warn you that there's a chance it might not match.

Hope this helps.
Lou
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post #19 of 19 (permalink) Old 10-27-2003, 08:17 PM
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yeah the sc pulley is 8 rib and ours is 6 rib, they had more ribs for better gripping because of the supercharger. But it'll still fit on there, it just won't use all of the pulley. No big whoop.
-Thomas

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