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What advantages to alternator vs generator?

Posted: Mon Feb 12, 2007 9:09 am
by Warner
I'm having an engine built and sent my generator to the builder. He's recommending that I use an alternator instead of the generator. What advantages are there to an alternator? What else in my electrical system will need to be changed out once I get the completed engine?

Thanks in advance,

Warner

Posted: Mon Feb 12, 2007 9:14 am
by Glenn
Generators put out 30amps while the alternator puts out 55amps.

If you generator is 12 volts then it's a simple swap and you need to remove the original regulator since the new AL82 alternators have an internal regulator.

Posted: Mon Feb 12, 2007 9:15 am
by volkaholic1
the other big advantage is that generators have brushes that wear & must be replaced. Alternators don't have this problem.

Posted: Mon Feb 12, 2007 9:16 am
by Warner
Glenn wrote:Generators put out 30amps while the alternator puts out 55amps.

If you generator is 12 volts then it's a simple swap and you need to remove the original regulator since the new AL82 alternators have an internal regulator.
Glenn, thanks for the ultra-quick and very informative post. You are an assett here!

Warner


PS - I'll let you know how my 2180 (thick walled 92's like yours) does on DRD's dyno when he gets it together!

Posted: Mon Feb 12, 2007 9:17 am
by Warner
Glenn wrote:Generators put out 30amps while the alternator puts out 55amps.

If you generator is 12 volts then it's a simple swap and you need to remove the original regulator since the new AL82 alternators have an internal regulator.
Glenn, thanks for the ultra-quick and very informative post. You are an assett here!

Warner


PS - I'll let you know how my 2180 (thick walled 92's like yours) does on DRD's dyno when he gets it together!

Posted: Mon Feb 12, 2007 9:29 am
by Ol'fogasaurus
I think you have the change the fuel pump too with the offset one.

Posted: Mon Feb 12, 2007 9:46 am
by MNAirHead
If you go alternator.. you want a 2 terminal (internally regulated) alternator.. not the Motorola.

Posted: Mon Feb 12, 2007 9:52 am
by Glenn
Ol'fogasaurus wrote:I think you have the change the fuel pump too with the offset one.
Correct.

Posted: Mon Feb 12, 2007 10:35 am
by MNAirHead
If you choose to use an alternator... mind if the title is changed to "alternator conversion?"

Could expand to the parts etc.

==101 Basics - Generator to Alternator Conversion==

Posted: Mon Feb 12, 2007 10:39 am
by MNAirHead
This post is based on a very smart question

http://www.shoptalkforums.com/viewtopic.php?t=107828

So we all can become involved..

1-What parts are required?
2-What are the common mistakes?
3-Which alternator do you suggest?
4-Any tricks?
5-Did I miss something?

Re: ==101 Basics - Generator to Alternator Conversion==

Posted: Mon Feb 12, 2007 10:40 am
by MNAirHead
moved

Posted: Mon Feb 12, 2007 7:30 pm
by Boneloader
MNAirHead wrote:If you choose to use an alternator... mind if the title is changed to "alternator conversion?"

Could expand to the parts etc.
I think the "what advantages to an alternator... " is a valid question--

I understand the fact that a generator is only 30 amps, but what exactly does that mean for my daily driver? Will my battery slowly die if I exceed its capacity?

Is anyone using a generator with good results? If so, how many accessories are you running off it?

Gotta go... I'd better start shopping for an alternator. :roll:

~Troy