100 amp alternator...need regulator - Team Camaro Tech
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post #1 of 22 (permalink) Old Oct 30th, 10, 08:55 AM Thread Starter
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100 amp alternator...need regulator

Hi there,

I've blown 3 stock voltage regulators. The guy at the local auto-electric shop says it's because my alternator's amperage is too high at 100 amps.

Is there a voltage regulator out there that can handle my alternator?

Thanks,

Gordon
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post #2 of 22 (permalink) Old Oct 30th, 10, 09:51 AM
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Re: 100 amp alternator...need regulator

Current doesn't flow thru the regulator, it shouldn't matter if its putting out 30a or 3000A. Regulator supplys voltage to the windings of the alternator to create a magnetic field so the alternator can generate power. I would expect most field windings in alternators to have about the same resistance so you shouldn't be pulling more current thru them which would be why your burning up the voltage regulators. See if you have a short in the wiring to the alternator.

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post #3 of 22 (permalink) Old Oct 30th, 10, 10:52 AM
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Re: 100 amp alternator...need regulator

Have you considered an internal regulator alternator ?
I have one and it works great, and keeps the stock look.

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post #4 of 22 (permalink) Old Oct 30th, 10, 11:16 AM Thread Starter
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Re: 100 amp alternator...need regulator

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Originally Posted by jr68 View Post
Have you considered an internal regulator alternator ?
I have one and it works great, and keeps the stock look.
Am considering it....what model SI do you have? and must you use an adapter wiring kit?

Thx,

G
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post #5 of 22 (permalink) Old Oct 30th, 10, 11:22 AM
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Re: 100 amp alternator...need regulator

I'll find the link for you that I used. It's where I got all the info I needed.
No special harness was needed.

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post #6 of 22 (permalink) Old Oct 30th, 10, 04:58 PM
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Re: 100 amp alternator...need regulator

Disconnect the external regulator coneector and either visit Mad Electrical for adapters to both the ext reg connector and two wire connector on alternator, or
on the ext reg connector, jumper the two outside wires together and jumper the two inside wires together. then at the alt plug, adapt it or remove terminals from plug and place blue wire onto #2, white onto #1, same wire relation as if externally regulated.

An SI conector can be bought at the Help Aisle in the parts store and add a couple spades to plug into connector.

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post #7 of 22 (permalink) Old Oct 30th, 10, 05:07 PM
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Re: 100 amp alternator...need regulator

Gordon, check out this link https://www.camaros.net/techref/ftecref14.html

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post #8 of 22 (permalink) Old Oct 31st, 10, 12:44 AM Thread Starter
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Re: 100 amp alternator...need regulator

Much appreciated, Jerry!

Gordon
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post #9 of 22 (permalink) Old Oct 31st, 10, 10:04 AM
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Re: 100 amp alternator...need regulator

Quote:
Originally Posted by Mark C View Post
Current doesn't flow thru the regulator, it shouldn't matter if its putting out 30a or 3000A. Regulator supplys voltage to the windings of the alternator to create a magnetic field so the alternator can generate power. I would expect most field windings in alternators to have about the same resistance so you shouldn't be pulling more current thru them which would be why your burning up the voltage regulators. See if you have a short in the wiring to the alternator.
2x
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post #10 of 22 (permalink) Old Oct 31st, 10, 12:43 PM
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Re: 100 amp alternator...need regulator

If you are concerned and want to ensure things are right than consider this as it is bullit proof! One of the best upgrades with proven results across the board. There are obviously more gremlins you are dealing with and its not the alternater your buying as you have gone through 3. Just a thought worth considering to end many of the electrical woes and improve things once and for all.

i would rather spend two days sorting out the charging system and gettingf it right than spend weeks or months trying to trouble shoot what is only one part of the problem!



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post #11 of 22 (permalink) Old Oct 31st, 10, 01:13 PM
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Re: 100 amp alternator...need regulator

Like Chris says above its a great system. I am running a 12SI (95A) which is also discussed on the site. They are about $90 and can be found about anywhere.
http://www.madelectrical.com/electri...evymain1.shtml

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post #12 of 22 (permalink) Old Nov 1st, 10, 10:13 PM
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Re: 100 amp alternator...need regulator

Quote:
Originally Posted by Mark C View Post
Current doesn't flow thru the regulator, it shouldn't matter if its putting out 30a or 3000A. Regulator supplys voltage to the windings of the alternator to create a magnetic field so the alternator can generate power. I would expect most field windings in alternators to have about the same resistance so you shouldn't be pulling more current thru them which would be why your burning up the voltage regulators. See if you have a short in the wiring to the alternator.
Ditto

I've never heard of a 100A externally regulated alternator. All the externally regulated alternators I've dealt with have been less than 40A.

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post #13 of 22 (permalink) Old Nov 2nd, 10, 10:08 AM
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Re: 100 amp alternator...need regulator

I've got a 63A alternator because of the A/C on my car. there may be bigger ones on larger cars like a Cadillac or Impala, but 63 is as high as a Camaro alternator goes.

Mark Canning
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post #14 of 22 (permalink) Old Nov 2nd, 10, 07:02 PM
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Re: 100 amp alternator...need regulator

That sounds right Mark, but I must say I'm confused by this thread. Hopefully we don't have a 100A internally regulated alternator with the old external regulator still attached.

Dave
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post #15 of 22 (permalink) Old Nov 2nd, 10, 07:27 PM
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Re: 100 amp alternator...need regulator

That would be a problem.

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ps,tilt,headrest,spd warn,pw,am/fm,delux int,
remote mirror,rear defrost,tint glass.etc...
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