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Author Topic: alternator  (Read 4020 times)

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455bird

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alternator
« on: November 11, 2009, 05:44:59 PM »
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Offline fabr

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Re: alternator
« Reply #1 on: November 11, 2009, 07:12:19 PM »
You might want to consider the rpm that shaft runs at. Most alternators don't put out full amps till the rpm reaches somewhere around 5000 alternator rpm or so. Be sure to run the alternator driven with a considerably larger diameter pulley on the shaft to keep alternator rpms up. Most alternators run at 2:1 ratio or more and that is with engine rpms being used ,not a gearing reduced shaft rpm. Just something to think about.
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455bird

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Re: alternator
« Reply #2 on: November 11, 2009, 08:04:06 PM »
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Offline Engineer

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Re: alternator
« Reply #3 on: November 12, 2009, 09:16:14 AM »
The two batteries aren't a bad idea, that way you will never be dead on the dunes cause the lights ran it down, but one or two lights on the busa battery might not hurt if the only way to charge is when your driving.
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455bird

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Re: alternator
« Reply #4 on: November 19, 2009, 03:52:29 PM »
Well this is where i'm at and so far and its working
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455bird

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Re: alternator
« Reply #5 on: November 19, 2009, 03:55:24 PM »
Next question, can I hook both batteries together? One is on the alternator and one is working off the stator, can I kill the stator?
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Offline fabr

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Re: alternator
« Reply #6 on: November 19, 2009, 03:55:45 PM »
it's a cool concept. I have considered it before but was always concerned about the output as I have said earlier. Have you measured the amp output at various speeds yet?
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
 " You have all the right in the world to believe any damn thing you'd like, but you don't have the right to demand that I agree with your fantasy"

Offline fabr

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Re: alternator
« Reply #7 on: November 19, 2009, 03:58:27 PM »
Quote from: 455bird on November 19, 2009, 03:55:24 PM
Next question, can I hook both batteries together? One is on the alternator and one is working off the stator, can I kill the stator?
Why not run both batteries and both alternators as separate systems? Keep the big unit for the high load lights and fans and the smaller for the engine puter and such? That way you should always be able to start the thing.
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
 " You have all the right in the world to believe any damn thing you'd like, but you don't have the right to demand that I agree with your fantasy"

Offline fabr

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Re: alternator
« Reply #8 on: November 19, 2009, 04:00:32 PM »
Quote from: 455bird on November 19, 2009, 03:55:24 PM
Next question, can I hook both batteries together? One is on the alternator and one is working off the stator, can I kill the stator?
To  answer the question though , yes ,you can, just be sure to tap your positive into the new system.
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
 " You have all the right in the world to believe any damn thing you'd like, but you don't have the right to demand that I agree with your fantasy"

Offline fabr

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Re: alternator
« Reply #9 on: November 19, 2009, 04:01:02 PM »
Uh negative also.
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
 " You have all the right in the world to believe any damn thing you'd like, but you don't have the right to demand that I agree with your fantasy"

455bird

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Re: alternator
« Reply #10 on: November 19, 2009, 06:27:25 PM »
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Offline Nutz4sand

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Re: alternator
« Reply #11 on: November 19, 2009, 06:53:30 PM »
Other than the obvious spare belt if you have it wired correctly you could run easy if you lost this alternator and run low lights and one fan just to limp/get back to the campsite??

I thought/guessed/assume(d) (yah I know how its spelled!) you only needed this alternator for the BIG lights and perhaps the BOTH fans under hot throttle?

But taking it easy with smaller lights will the motors system run one fan and smaller lights?   
« Last Edit: November 19, 2009, 06:56:51 PM by Nutz4sand »
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Offline fabr

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Re: alternator
« Reply #12 on: November 19, 2009, 07:12:32 PM »
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
 " You have all the right in the world to believe any damn thing you'd like, but you don't have the right to demand that I agree with your fantasy"

455bird

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Re: alternator
« Reply #13 on: November 19, 2009, 07:18:50 PM »
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Offline fabr

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Re: alternator
« Reply #14 on: November 19, 2009, 08:27:56 PM »
If you had all the lights and fans running while you were testing it out and getting a 14.6 volt reading you could very well have been reading the battery voltage . An alternator regulator will only supply what it is called upon to provide. Technically  an alternator will provide only the amps needed to keep the battery at full charge.  Now let's assume that you only ran the test for a few minutes you could still get a 14.6 volt reading even if the alternator AND battery were providing that 14.6 volts but not enough amps from the alternator to keep the battery fully charged. A slow run down condition. That's why I keep asking if you have measured the AMP output from the alternator under a full electrical load and compared that to the electrical draw on the system with all lights ,etc. running. If that's the alternator I think it is it's about a 30 amp rated unit?
Logged
"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
 " You have all the right in the world to believe any damn thing you'd like, but you don't have the right to demand that I agree with your fantasy"
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