1Jz Rear End

[dude4253]

I was cursing eBay and stumbled up this

http://cgi.ebay.com/ebaymotors/JDM-TOYOTA-TORSEN-JZA-SUPRA-1JZ-LSD-LIMITED-SLIP_W0QQcmdZViewItemQQcategoryZ33731QQihZ015QQitemZ250227476456QQrdZ1QQsspagenameZWDVW

I eventually plan on putting a 1jz in my car and was wondering if there is any difference between the 1jz rear end and 7m rear end like the ability to sustain more horsepower or better lsd...pretty much is it better and should i buy it :1zhelp:

 

[dude4253]

Well i think this might be in the wrong section..... if it is can someone point me to the right one

 

[tsuper92]

the diff can't take the punishment that the stock us 7m car's diff,but it is silky smooth in the twisty's.i couldn't believe how smooth it was when i swapped it in.the car just seemed like it floated through the corner.you would have to experiance it for yourself to understand.other then that your wasteing your money for hard launce's

 

[pogoism9]

USDM MKIII Supras never had 4.10's if I recall. just 3.73/3.91 for the Turbos and 4.30 for everything else.

 

[pimptrizkit]

iirc; canadian cars did come with 4:10's but they were clutch pack lsd's.

 

[Evilempire1.3JZ-GTE]

Yep MA70 & MA71 3.73, 3.91, 4.30

JZA70 had 4.10

if you plan to drive soft on your car and not upgrade your hp but plan to canyon carve or do a couple willow springs twisty road runs then go with the 4.10

if you plan to upgrade hp do hard launches then use the MA70 diffs

if you go 1jzgte and decide to put nice cams in it the 4.30 is fun as hell it will get you from 0-60 in like nothing its fun for stop and go and city driving

if you will upgrade to a single then a 3.91 is the best. its the closest to a 4.10 but you will see better free way millage

4.10 is the best overall ratio with the supra

things to know is the fastest you can go on the 4.30 is 160mph with stock 1jz setup at 6000-7000 rpms
with the 3.91 i plan to get 180 and have enough hp and torque on upgrades to get the same 0-60 as the 4.30

 

[Clint]

the 1jz 4.10's are Pieces of poop!

 

[dude4253]

I don't plan on doing much canyon carving in Florida so 3.91 sounds like the way for me to go! thanks guys

 

[annoyingrob]

the 1jz 4.10's are Pieces of poop!

Mine's still in one piece...

Yes, they are weaker than the MA70 diffs, that is true, but they're not THAT bad.

 

[OneJSupra]

if you go 1jzgte and decide to put nice cams in it the 4.30 is fun as hell it will get you from 0-60 in like nothing its fun for stop and go and city driving

if you will upgrade to a single then a 3.91 is the best. its the closest to a 4.10 but you will see better free way millage

things to know is the fastest you can go on the 4.30 is 160mph with stock 1jz setup at 6000-7000 rpms
with the 3.91 i plan to get 180 and have enough hp and torque on upgrades to get the same 0-60 as the 4.30

I've been spinning my rear tires on second gear since I swapped my rear end with 4.30 lsd. I swear this is God's gift to 1JZ as "annoyingrob" puts it in his other thread. The 4.30 combine with the 1JZ is just simply amazing. You can go to 0-60 in like split second and the shit feels like a rocket taking off. :evil2:

 

[Dylan JZ]

I've been spinning my rear tires on second gear since I swapped my rear end with 4.30 lsd. I swear this is God's gift to 1JZ as "annoyingrob" puts it in his other thread. The 4.30 combine with the 1JZ is just simply amazing. You can go to 0-60 in like split second and the shit feels like a rocket taking off. :evil2:

I need to trade someone my 3.91 for a 4.3 lsd.

 

[bluemkiii]

so an NA comes with a 4.30 and pre 89 turbo comes with 3.91 and 89+ comes with a 3.73 right?

 

[Dylan JZ]

so an NA comes with a 4.30 and pre 89 turbo comes with 3.91 and 89+ comes with a 3.73 right?

yep.

 

[macjac69]

Any one got a 3.9XXX in good cond??

 

[TripleC]

I just put in a welded 4:30 and it feels slower to me. i had a 3.71 LSD that just was not kutting it on the course. I am now having second thoughts, i liked feeling the power band go al the way to 7200 and still Pull now it peaks around 6600 and power levels out. I have 440 injectors in my gerage that i am going to put in this week. do you guys think this wil help my top end power?
Or do i need to switch Cams get back what i lost?
Ohh take into account i can swap back the LSD whenever so if i really want it and o am going for a trip i canjust put it back in anyway.(i dont want to have to take it out again)
Sorry for the thread steal...