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Alternator Amperage

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Old 11-25-2007 | 03:13 PM
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Matt_01SE_20th's Avatar
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Alternator Amperage

Quick question here, i know some people have upgraded the alternator to a higher amperage, does this require any other changes? I have searched about this but havent found anyone saying anything other than switching due to subs. I have an underdrive pulley and at idle i have always noticed a little dimming on the headlights since i installed it. Just curious if going to a 120-140A alternator requires anything else. thanks.
Old 11-25-2007 | 04:43 PM
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I bought a 160A alternator and it bolted right up and it was fine nothing needed to be changed. these high amperage alternators are all rebuilds

BTW our stock amps is 120
Old 11-25-2007 | 05:41 PM
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^ Actually, they're only 100A for 00/01's...
Old 11-25-2007 | 06:00 PM
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Originally Posted by SilverGLE
^ Actually, they're only 100A for 00/01's...
DOH your right, I'm thinking of my T-bird
Old 11-26-2007 | 04:03 PM
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FSM says 110A for 2000-2003. Not sure it really makes a difference.

I knew it would FIT just needed to see if the higher output internals caused any issues on the rest of the electrical system.

Thanks.
Old 11-26-2007 | 04:10 PM
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Originally Posted by Matt_01SE_20th
FSM says 110A for 2000-2003. Not sure it really makes a difference.

I knew it would FIT just needed to see if the higher output internals caused any issues on the rest of the electrical system.

Thanks.
Side affects on my old car, was when I pushed the accelorator my lights got brighter lol. on the maxima my lights don't do it cause I have them wired to the battery
Old 11-29-2007 | 08:12 AM
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Originally Posted by Matt_01SE_20th
FSM says 110A for 2000-2003. Not sure it really makes a difference.

I knew it would FIT just needed to see if the higher output internals caused any issues on the rest of the electrical system.

Thanks.
Correct is right, it's stamped on the alternator itself. Even when i had the VQ20 the alternator was also rated as 110A. So it seems all the VQ's alternators are the same.
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