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DirtyRedTJ
Member
Joined: 18 Feb 2004
Location: Gainesville, Georgia
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 Posted: Thu Mar 04, 2004 12:08 pm Post subject: What's the factory Amp rating for a Factory Alternator? |
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I have done a little searching and I come up with 90 amps for the stock alty on 98 TJ's. Can anyone confirm this number? I'm not looking for a lecture on SAE amp ratings, just wondering what the SAE rating is.
(I am aware of the rating system, and the fact that a 90 amp alty does not produce nearly what it's rated for.)
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Dirty Red is a 1998 4 cyl, 5 spd w/ 33" Truxus MT's and 5" of lift. |
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Code3TJ
Hacker
Joined: 01 Jan 2004
Location: Uzbekistan
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| Posted: Thu Mar 04, 2004 12:18 pm Post subject: |
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Somewhere I read that standard on a 97 was around 80 and 115 on sports and saharas. I'm trying to find it and I'm not sure if that changed with the 98's.
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Nothing to see here. |
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Black2001TJ
Leopard Skin
Joined: 03 Jan 2004
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| Posted: Thu Mar 04, 2004 12:30 pm Post subject: |
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I know it was an option on 2001s to go with the higher, not sure what the higher was though, but I got it 
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Just damn happy to have my Jeep back, it's been a long time! |
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KnightFire
Member
Joined: 07 Jan 2004
Location: Hanover, MD
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| Posted: Thu Mar 04, 2004 1:15 pm Post subject: |
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I know my 02 "X" Came with a 117amp alternator.
HTH
KnightFire
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2002 TJ Wrangler X
Patriot Blue 4.0L
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Black2001TJ
Leopard Skin
Joined: 03 Jan 2004
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| Posted: Thu Mar 04, 2004 1:27 pm Post subject: |
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| KnightFire wrote: | I know my 02 "X" Came with a 117amp alternator.
HTH
KnightFire |
That sounds familiar for mine, 117.. But it was an option on 01s and I think on 02s, X, Sport, Sahara, it was standard...
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Just damn happy to have my Jeep back, it's been a long time! |
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ehirner
Moderator
Joined: 01 Jan 2004
Location: Eastern PA
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K9Jeep
Member
Joined: 23 Jan 2004
Location: WTF, VA
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| Posted: Tue Mar 09, 2004 8:14 am Post subject: Re: What's the factory Amp rating for a Factory Alternator? |
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| DirtyRedTJ wrote: | | (I am aware of the rating system, and the fact that a 90 amp alty does not produce nearly what it's rated for.) |
Actually, the outputs are truthful. The problem is that it's required to be spinning at nearly 8,000rpms to obtain it. At Idle, expect about 10-15a. You can chart it out from there..
On Ebay, there is a seller doing 160a versions for Jeeps at $99 each. I think minimum output begins at 80 amps.
The OEM specs sound right.. 85 & 117
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