What'd be a sufficient power supply?

[illadelph 10+ year member]

So my friend has a 96 Geo Metro LSI. He just bought some Ascendant Chaos 12's and is gonna run a PCA3500 to them. He wanted to know if a single yellowtop would be enough to power the amp, since he has a stock alternator. Why he's not asking himself, i dunno. But I figured I'd make it easy for him.

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[subzero 5,000+ posts]

he needs to do the BIG 3 wire upgrade, he needs 2 bats and that might be ok. we dont know the amerage output on the alternator, do we?

 

[Epic0318 10+ year member]

well considering its a 96 geo im guessing the amperage output of the geo would be around 75 is that. atleast no more than 90

 

[subzero 5,000+ posts]

well considering its a 96 geo im guessing the amperage output of the geo would be around 75 is that. atleast no more than 90

That wouldnt be enough to sustain all that draw and recharge the batts. Sounds like he will need a new alt too.

 

[illadelph 10+ year member]

yeahhhh. i was gonna say that his stock alt is prolly 90 amps. But he wants to do what he can to avoid an alt upgrade, which i tried to tell him he would PROBABLY (99% sure)have to do lol.

 

[illadelph 10+ year member]

he needs to do the BIG 3 wire upgrade, he needs 2 bats and that might be ok. we dont know the amerage output on the alternator, do we?

so youre thinking two yeloowtops and an alt upgrade? Any other feedback? You tend to give me good advice subzero //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif, and itprolly wont hurt to get a couple other responses/ideas.

 

[pimpnyou204 10+ year member]

I'd get a alt it's by far better IMO.. Plus think about 2 good agm will be 400 why not get an alt for the same price?

 

[>>SQL<< 10+ year member]

actually I think it is a 60 amp alt.

It is pretty easy to change the alt to a Chevy 1 wire setup which would allow for a much higher output.

 

---------- Post added at 07:05 AM ---------- Previous post was at 07:05 AM ----------

 

actually I think it is a 60 amp alt.

It is pretty easy to change the alt to a Chevy 1 wire setup which would allow for a much higher output.

 

[illadelph 10+ year member]

So what's the best alternator to get without have a mechman custom?

 

[Kangaroux 5,000+ posts]

Excessive amperage usually has some good prices. Personally I would stay away from yellow tops they are prone to failing if the voltage on them drops too low, and for what you pay for you can get like twice as much out of a Deka 9a31 (which bad4health on here sells).

 

[TheUnderFighter 10+ year member]

Yea, I was gonna say, I've heard a lot of reports of the yellowtop actually not being a very ideal car audio battery. But at the price of 2 good batteries that you're gonna need, he could just do an HO alt. He's likely gonna need an HO alt anyways. If he's trying to run something that big, and doesn't want to do a HO alt, he's probably in the wrong hobby.

 

[mylows10 5,000+ posts]

i have a 220 amp alt for sale cheap, he may be able to have someone build a bracket and just add this one with the stock one too

 

[audiobaun 5,000+ posts]

on ebay-there are some places to get a high amp output altr, that fits right back in the stock location/Alter starts where i got mine, a 225 amp in stock location.Just had 1 wire to modify,but works fine.Yellow top batteries are deep cell and take longer to charge back up.I use 1 red top for my truck,and 1 red top for the stereo system/amps.Honestly for that small car,Id get rid of the power hungry amp and you could prob get enough funds to get 2 old school amps and use less amperage and keep it all the same.All we had back in the day/stock,and 12 volt supply amps/11.6 for those of us that couldnt afford the $$$alternators/ect.You might be able to get a 4/3/2 amplifier,that will be all you may need for that car,a JBL GTQ 400 will do excellent for whatever you need to.8 ga power supply and it can shell out some POWER than todays amps that are power hungry!!! my suggestion to you,

 

[>>SQL<< 10+ year member]

you can go to any junkyard and get a 140 amp GM alt for super cheap.

You can modify the factory bracket to work with the GM alternator.

if you do not have a welder and grinder then the bracket is for sale on ebay for around $20

I have the same motor in my Suzuki Tracker - getting a GM to work is super easy.

 

[>>SQL<< 10+ year member]

here is a link to everything you should need to know.

You would need an alt with the newer 6 rib belt style, the one shown uses the older style v belt.

This is what I would do rather than trying to buy an expensive Suzuki High Out Alt

GM alternator install - Zukikrawlers