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Discussion Starter #61
Winter and early nights are upon us (in the northern half of the globe). This is when most people notice the under powered alternator. Thought I would bump this to help some people out.
 

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190 amp alternator

I recently have been having problems(again) with my alt. I did a little research my self and found.....NO LAUGHING. Ther is a John Deer Tractor Alt. 190amp that is a direct plug in to our MKII's with minor modifications to mount. Will be around 500 bones when done having a shop do modifications and install. Thats with the price of the alt. I am running a system that keeps killing my alt.'s so I am going to try this conv. I will let you know how it turns out.

Good Luck all.
Dan O.
85 MKII
Kicker Supra
Stock 5mge
 

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Dan whats up man. probably dont remember me but met ya a whiel ago in chahalis(cant spell.) i remember the kicker car. anyways yea. My Stereo is killing batterys and alts also. please lemme know how it turns out and possibly pics. im runnin camry alt now but still probably not enough. kept the tunes fairly low but another road trip is comin up so we see how it does. monoblock and dual 1 ohm subs = Ampres. When eyes are blurry ya dont notice the volts drop till its too late
 

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Discussion Starter #66
looks to be a Nippon Denso alternator. Can you verify that it is indeed a Nippon Denso? And perhaps get any numbers off of it that you can. If it is a re-wound alternator perhaps people can get theirs done locally.
 

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It looks like the round plug. Does it come with a pully? which one?
 

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alternator

i can find out this weekend when i go to my car its park upstate i'm in the city,but it is a nippo denso but you can email the guy i bought it from on ebay he is great to deal with and can answer your questions,i did notice the pully it has an extra tooth
 

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I had time to surf around today and came across an ebay seller - starters-alternators :) .
Pretty good prices I thought.

Here's a 130 amp alternator, looks like a 6 tooth pulley:
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&ih=003&sspagename=STRK:MEWA:IT&viewitem=&item=130181785714&rd=1#ebayphotohosting

Here's a 143 amp alternator, looks like a 4 tooth pulley (for 7mgte?):
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&ih=003&sspagename=STRK:MEWA:IT&viewitem=&item=130181785734&rd=1

Maybe save Dan O. some $$ as these would provide 70 amps for the sound system.

Ken
 

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If you guys are puting alternators of more than 100A should look at rewiring the system. The stock fusible link is only 100A on the main feed line.
Good point. Anyone care to address this issue?
 

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Your best bet is to wire in another alt in place of the a/c running to another battery
and just for/to your stereo system.
Chevy alts are easy to hook up and run on that side
 

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if getting your stock alt upgraded costs roughly $70-150, why are people buying and modifying other alts for fitment..is there a disadvantage to upgrading the stock alt?
 

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Discussion Starter #73
What amperage are you upgrading to.

For the 80 amp Camry alternator there are no changes needed unless you want to use the stock pulley. The Camry pulley can be used with a different belt.

The Camry alternator is usually cheaper and has more amperage than the stock alt.

This thread was started as my experience on installing the alternator. It has turned in to a 'what alternators will fit our cars'. I don't think it should turn into a how and why should I upgrade an alternator.

Not sure where you are reading the modifying part, other than the optional mod for the pulley.
 

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i was thinkin in the 120-140 range..would a 100amp alternator work with a yellow top optima for 2000 watts rms amp/subs...plus radio/speakers, or would it get eaten, i know 80 wont last.
 

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And yes, there is a disadvantage to modifying a stock alternator to higher current. The result is never as good as an alternator that was originally designed for that current, due to the smaller enclosure and compromises required to get a higher peak.
 

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My battery warning and parking brake lights came on on the dash this morning indicating that the alternator is on its way out. I called my contact at my local Toyota dealer and he asked if the build date on the Camry was early or later in 1992. I'm guessing early '92 since '93 was a totally new chassis?! Or is it easier on everyone (me and the parts guy) just asking for a 1991 Camry alternator?!

Thanks,
 

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Discussion Starter #78
This is from the first post

[The Camry alt] is from a 1992 Camry v6 3VZFE (Round Plug). 93+ alts will not work because of plug design (though you can modify the wiring harness).

Tell the dealer you want an alternator form a 1992 Camry V6 3VZFE and you should get the correct alternator. I believe 91 alts are different.
 

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I had a fitment issue with the Ford Escort belt and did some research. The stock MK2 alternator uses a 7-rib 36.2" long belt. The 1992 Toyota Camry V6 uses a 6-rib 37" long belt. The pulleys are virtually the same diameter, so I'm going to try the 37" long Camry belt and see how that works out. Will be nice to be able to say you need an alternator and belt for the same car when buying these parts!!! ;)

Will post my results when I complete the project.
 

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Camry 80amp Alternator and Belt Upgrade

I had a fitment issue with the Ford Escort belt and did some research. The stock MK2 alternator uses a 7-rib 36.2" long belt. The 1992 Toyota Camry V6 uses a 6-rib 37" long belt. The pulleys are virtually the same diameter, so I'm going to try the 37" long Camry belt and see how that works out. Will be nice to be able to say you need an alternator and belt for the same car when buying these parts!!! ;)

Will post my results when I complete the project.
OK, I just completed this upgrade and would like to offer my :twocents: for people who do this in the future and don't want to swap out the alternator pulleys...

When you buy your new 1992 Camry alternator, just get the belt that goes with it! The original '84-'86 Supra uses a 7-rib 36.2" long belt. The '92 Camry V6 uses a 6-rib 37" long belt. The adjustment may be close to being all the way extended, but there was still a little bit of room at the end of mine when I got it tight enough. Everything else was plug-n-play.

Hope this helps!! :)

EDIT: FYI - The 1991 Camry came with a 2.5L V6 and the alternator is only 70 amps. The belt for the '91 Camry is also a different length.
 
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