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2jz Alternator upgrade

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Old 01-25-14, 08:32 PM   #16
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The trick is output at idle - 2000 rpm. Most don't measure up. Above 2k sure but that's not where you need it. The quality aftermarket like mechman will but a lot of stock rewinds won't. The sequoia unit supposed to do over 100 amp at 800rpm.
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Old 07-10-14, 07:26 AM   #17
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Did this ever turn out? I need an alternator and would love to upgrade at the same time..
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Old 07-10-14, 05:05 PM   #18
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Quote:
Originally Posted by eknine9 View Post
I just got an aftermarket 160 amp alterntor off of that auction site everyone uses that starts with an e.
I had it benched and it was definitely producing what it was rated for and I ran a big 1/0 gauge wire (overkill I know) from the Alt to the battery to facilitate current flow. And it was less than $150 shipped to my door.

I think Biggu is selling a MechMan HO Alternator in the classifieds here and mechman always had a solid reputation on caraudio.com an realmofexcursion forums. So that's an option as well if you don't want to mod an alternator to fit.

hes right i did the same, but i got a 250 AMP alternator and i works great. just buy it of an online auction and it should suffice!
ranging from 140$ - 325$

best of luck to you!
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Old 07-11-14, 12:55 PM   #19
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I have a LS400 140 amp alternator installed on to my GTE....
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Old 07-11-14, 01:45 PM   #20
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Originally Posted by CatManD3W View Post
I have a LS400 140 amp alternator installed on to my GTE....
Damn, the 1UZ alternators bolt on to the 2J? Had no idea..

I ordered an upgraded 160 amp alternator already but for the price of the LS 400 nator's at my local pnp I could easily send it back and save $150.
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Old 07-16-14, 12:57 PM   #21
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I've got the alt sitting down at the shop, car's been down for NA-T build for the last couple months. At some point I'll be swapping it on.
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