Alternator output?
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Alternator output?
Hey, I have a '97 4Runner, and I want to upgrade my sound system. I need to know the output of my stock alternator so I will know if the amp I am looking at will draw too much power. Thanks!
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Wow, that is a lot lower than i thought! A 2000 4Runner owner over at caraudioforum.com was claiming to have an output of 90 amps, and another guy 80! I guess either they are wrong or Toyota put higher output alternators in 4Runners sometime after the '97 model year.
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If I'm not mistaken, the alternator could be a few different variations based on the options available with the truck. A 60 amp would be just fine if say you had a 4 cyl 5spd with no a/c, however I can easily see them being a 80 amp'er if its a 3.4L a/c and all power opts.. I can tell you that I am running about 1000 watts right now with no additions to the factory charging system, and only plan to add a Optima battery when the stocker finally lets go. If you plan on a basic stereo, or even a dual amp system, you factory alternator will probably do just fine as long as you use the correct power wire and if you go somewhat big a capacitor or two wouldn't hurt.
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In my 92, I am running a 2 amps- 1 four channel (40x4) and a mono (200x1) with absolutely no dimming at stop lights. I believe that my alternator is smaller than the 3rd gens., so you should be fine unless you go farther above wattage wise than I have.
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Originally posted by PhxTRDRunner
If I'm not mistaken, the alternator could be a few different variations based on the options available with the truck. A 60 amp would be just fine if say you had a 4 cyl 5spd with no a/c, however I can easily see them being a 80 amp'er if its a 3.4L a/c and all power opts.. I can tell you that I am running about 1000 watts right now with no additions to the factory charging system, and only plan to add a Optima battery when the stocker finally lets go. If you plan on a basic stereo, or even a dual amp system, you factory alternator will probably do just fine as long as you use the correct power wire and if you go somewhat big a capacitor or two wouldn't hurt.
If I'm not mistaken, the alternator could be a few different variations based on the options available with the truck. A 60 amp would be just fine if say you had a 4 cyl 5spd with no a/c, however I can easily see them being a 80 amp'er if its a 3.4L a/c and all power opts.. I can tell you that I am running about 1000 watts right now with no additions to the factory charging system, and only plan to add a Optima battery when the stocker finally lets go. If you plan on a basic stereo, or even a dual amp system, you factory alternator will probably do just fine as long as you use the correct power wire and if you go somewhat big a capacitor or two wouldn't hurt.
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