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Stock SB Alternator Output?

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Old 01-22-2003, 11:38 AM
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74Coupe
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Default Stock SB Alternator Output?

Does anyone know the "AMP" output of a stock SB Alternator?

Thanks
Old 01-22-2003, 12:00 PM
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Fevre
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Default Re: Stock SB Alternator Output? (74Coupe)

For a 74, 60 amp if I am not mistaken. Earlier c-3 had 47 amp, again IIANM.
Old 01-22-2003, 12:09 PM
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Robert N
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Default Re: Stock SB Alternator Output? (Fevre)

61 amp on the 70 LT-1.

If you are planning on mods to the electrical system in terms of stereos, foglights, etc, you may need a higher amp alternator.
Old 01-22-2003, 12:17 PM
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Default Re: Stock SB Alternator Output? (74Coupe)

Thanks,

Forgot to mention, that the car does have A/C, if that makes any difference.
Old 01-22-2003, 12:26 PM
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Default Re: Stock SB Alternator Output? (74Coupe)

Here's a page from ZIP to confuse you:

http://store.yahoo.com/zipproducts/e...ternators.html

I would think the '61 or 63' (whatever that is) amp alt would work.
Old 01-22-2003, 12:27 PM
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CDaniel525
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Default Re: Stock SB Alternator Output? (74Coupe)

how man amps is needed to power a car with....
MSD box, elec fuel pump, dual elec fans, jacobs nitrous mastermind,
and then all of this with the headlights on??
Old 01-22-2003, 12:30 PM
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Fevre
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Default Re: Stock SB Alternator Output? (74VETTE)

how man amps is needed to power a car with....
MSD box, elec fuel pump, dual elec fans, jacobs nitrous mastermind,
and then all of this with the headlights on??
I bought a 100 amp just to be on the safe side even though I have no A/C or killer stereo.
Old 01-22-2003, 03:38 PM
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Default Re: Stock SB Alternator Output? (Fevre)

thats what i just got....hope its enough....hate to spend the big bucks on a 140 amp
Old 01-22-2003, 09:41 PM
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stpman
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Default Re: Stock SB Alternator Output? (74VETTE)

unless your running a "killer stereo" and A/C the 100amp should do you fine. from my experience the 42 amp was installed when there weren't a lot of heavy draws on the system (no A/C, or P/W etc.) as the option loads were added the altenator size increased. My daughters car has a 42 amp from GM (no A/C or PW) and my brother had a '75 Olds custom cruiser wagon that was loaded and only had a 63 Amp installed. I'm not sure what's on my '74 as Bubba got there first, :banghead: completely wrong Alt..... I think it's from a mid year, no regulator.

Steve :steering:


[Modified by stpman, 2:42 AM 1/23/2003]

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