2jz Alternator upgrade - Club Lexus Forums


2jz Alternator upgrade

Reply
 
 
 
Thread Tools Search this Thread
Old 01-24-14, 08:15 AM   #1
SCereal
Lead Lap
Thread Starter
iTrader: (4)
 
SCereal's Avatar
 
Join Date: Jun 2009
Location: FL
Posts: 419
Default 2jz Alternator upgrade

So I was reading a thread over on SF about alternator upgrades. Has anyone here tried it with an SC? Apparently you can use either a 2005ish Tundra, GX470 or Sequoia alternator which are 130 (tundra) or 150amp (GX/seq). You just have to shave about 5mm off the upper mounting ear and rewire the connector pin. The supra guys figured it all out and seems like a great way to get some extra amperage at idle to run big fuel pumps and fans and such.

I don't see any reason why it wouldn't work for us but curious if anyone has actually done it.
SCereal is offline   Reply With Quote
Old 01-24-14, 09:48 AM   #2
99SC42
gte & na-t
iTrader: (43)
 
99SC42's Avatar
 
Join Date: Jan 2007
Location: Maryland /Germantown
Posts: 5,113
Default

SC guys are too cheap!
99SC42 is offline   Reply With Quote
Old 01-24-14, 11:18 AM   #3
SCereal
Lead Lap
Thread Starter
iTrader: (4)
 
SCereal's Avatar
 
Join Date: Jun 2009
Location: FL
Posts: 419
Default

Guess I'll have to be the first then. I've got a big sound system and once I get my turbo build done, i'll have some big fuel pumps, standalone and I'd prefer to have my electrical system stable and not short on capacity.

I'll update here and my build thread when I do it.
SCereal is offline   Reply With Quote
Old 01-24-14, 11:31 AM   #4
99SC42
gte & na-t
iTrader: (43)
 
99SC42's Avatar
 
Join Date: Jan 2007
Location: Maryland /Germantown
Posts: 5,113
Default

Lol it's was a joke!!

it works great i know a couple people running them.
99SC42 is offline   Reply With Quote
Old 01-24-14, 11:57 AM   #5
mecheng10
Lead Lap
 
Join Date: Aug 2013
Location: ohio
Posts: 476
Default

where is this supraforums link you were talking about.
somehow I cant find it
mecheng10 is offline   Reply With Quote
Old 01-24-14, 12:24 PM   #6
Ali SC3
Lexus Fanatic
iTrader: (10)
 
Ali SC3's Avatar
 
Join Date: Oct 2007
Location: CO
Posts: 9,209
Default

sounds like a good mod, connector has gotta be pretty easy to rewire.
shaving 5mm only takes a few seconds with a trusty grinder.
I say go for it and post the results, the SC is pretty tough on batteries so it should help.
Ali SC3 is offline   Reply With Quote
Old 01-24-14, 01:34 PM   #7
SCereal
Lead Lap
Thread Starter
iTrader: (4)
 
SCereal's Avatar
 
Join Date: Jun 2009
Location: FL
Posts: 419
Default

I think off site links are verboten so just search for 130 amp oem alternator on SF.

You're definitely right, I have the biggest yellow top you can get in mine and between the fact I don't drive it very often, my alarm and big stereo, I'm particularly hard on batteries. I relocated to the trunk and ran 2/0 marine cable up to the mains and for a ground.

The connector part number is 90980-11964 and its under $10. apparently the pins can just be popped out and over into this one. For the supra TT at least, the pins have to be changed over thusly:

Supra 3 pin to 4 pin, respectively goes like this: (yellow/green stripe) 1-->4, 2-->2, (beige)3-->1, plug up the third pin with an OEM plug or RTV silicone.

If I can find a decent alt at a good price, i'll give it a go. Seems easy enough and a mod I don't have to wait on any other projects to do.
SCereal is offline   Reply With Quote
Old 01-24-14, 07:43 PM   #8
99SC42
gte & na-t
iTrader: (43)
 
99SC42's Avatar
 
Join Date: Jan 2007
Location: Maryland /Germantown
Posts: 5,113
Default

Optima Is the worst battery you can put on your car.. aem car specially hates optima , starting issues etc..

I've always used regular 89 $ batteries because optimas never seems to work.
99SC42 is offline   Reply With Quote
Old 01-24-14, 08:01 PM   #9
jwin
Lexus Test Driver
iTrader: (16)
 
jwin's Avatar
 
Join Date: Dec 2005
Location: tx
Posts: 1,427
Default

i have an upgrade alternator which was a rewind on my Na-t. doesn't know how well it works yet but will report as soon as i redo my harness for proefi and get my car running. I brought it incase i ever wanna run extra fuel pumps i don't want my electrical system to strain.
jwin is offline   Reply With Quote
Old 01-24-14, 08:10 PM   #10
SCereal
Lead Lap
Thread Starter
iTrader: (4)
 
SCereal's Avatar
 
Join Date: Jun 2009
Location: FL
Posts: 419
Default

Once this battery goes I'll be switching back to die hard platinums. Odyssey makes those. Every third optima is good seems like. Trick is finding a good one. The yellow tops are better than the reds in my experience. I've got a pair of reds in my escalade (came with it) and they've been good to me but they will go too when time comes.
SCereal is offline   Reply With Quote
Old 01-25-14, 02:16 AM   #11
lexforlife
Lexus Fanatic
iTrader: (7)
 
Join Date: Dec 2002
Location: So Florida baby
Posts: 6,763
Default

Quote:
Originally Posted by Quicksc4 View Post
Optima Is the worst battery you can put on your car.. aem car specially hates optima , starting issues etc..

I've always used regular 89 $ batteries because optimas never seems to work.
omar , please explain as when i did trufantics car he has a optima redtop with aem v2 and never had a issue
lexforlife is offline   Reply With Quote
Old 01-25-14, 05:31 AM   #12
99SC42
gte & na-t
iTrader: (43)
 
99SC42's Avatar
 
Join Date: Jan 2007
Location: Maryland /Germantown
Posts: 5,113
Default

I got one in my garage it's junk, from my friend car, keeps dying.

I replaced justin's (inkredible) over 4 times under warranty every week. When he finally listened to me and dropped an $89 regular battery in the car he hasn't been stranded.

And it's all over Sf , do a little search ..

I wouldn't run one if you pay me.
99SC42 is offline   Reply With Quote
Old 01-25-14, 01:27 PM   #13
eknine9
Lexus Test Driver
iTrader: (8)
 
eknine9's Avatar
 
Join Date: Mar 2012
Location: TX
Posts: 1,074
Default

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.
eknine9 is offline   Reply With Quote
Old 01-25-14, 07:30 PM   #14
SCereal
Lead Lap
Thread Starter
iTrader: (4)
 
SCereal's Avatar
 
Join Date: Jun 2009
Location: FL
Posts: 419
Default

Alt and connector ordered so I'm gonna give it a shot. Went with the sequoia 150 amp unit. Probably get here next week maybe can do swap while I'm doing my brakes.
SCereal is offline   Reply With Quote
Old 01-25-14, 07:56 PM   #15
scENFORCER
Lexus Champion
 
Join Date: Oct 2006
Location: Vancouver, BC
Posts: 3,113
Default

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.
This was going to be my suggestion for everybody. Just buy a refurbished and upgraded one off eBay and it'll bolt right in. No trimming needed.
scENFORCER is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Brake upgrade options? danmm7 GX - 1st Gen (2004-2009) 2 06-11-13 09:32 AM
Toyota debuts 07 Tundra CrewMax (Updated - Edmunds Full Test) GFerg Car Chat 28 01-08-07 01:41 PM
Piston Slap PitBull LX - 1st and 2nd Gen (1997-2007) 3 12-15-04 11:20 PM
4.7L to have more power in 05 AgentWD-40 LX - 1st and 2nd Gen (1997-2007) 5 05-14-04 03:43 AM


Tags
2007, 2jz, alternator, battery, escalade, lexus, pin, round, sc300, supra, swap, upgrade

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -7. The time now is 08:25 PM.


Copyright © 2000-2016 Internet Brands, Inc. All Rights Reserved