Torsen LSD w/4.27 ring into SC400 (many photos)

[is300ss]

ive been wanting to do the same ewact with my diff that you have did this right up on.

i have a sc300 and a 1jzgte as well it sucks when your cruisin at 80 on the high way ane ur at like 3800rpm but whatever.

I tune myself so im not worried about.
I can make the at a/f at 15.7 till the second it hits boost so i dont mess my up haha. I love tuning... sooo easy. can't believe everyone gets there professionally tuned, especially these toyota motors, they can handle super lean a/f's

yo so i have a question.

What Torsen diff did you buy that goes in there?
thanks for your write up though man. helps a lot

please asnswer me though, im dying here with 14.5 psi and wit one wheel wonder.

[is300ss]

Originally Posted by sc400injen

DAMN, nice write up man, very detailed and pics all the way through, nice. I like the enthusiasm for the 1UZ, i have to say i f**kin love the growl of my custom bent Borla tubes. The next thing i will be doing is changing to an lsd. i have a 92 sc4 and i'm jus gonna put a 93-98' Supra Auto TT rear end on mine. i have a question and any help would be greatly appreciated

does the differential match up for the first gens or is it the whole rear end (including axles)

probably jus the differential, but jus wanna b sure before i go and buy a supra differential,


once again, thanx for the writeup and nice setup with the soarer emblems and keep that clean SC look and the V8 growl


peace mane,

Knowledge

yeah the whole pumkin bolts up and the axles to. I believe the drive shaft in'st going to bolt up though. in that case you just need to swap that part on the supra diff that bolts to the drive shaft (talk about for lack of technical term) with the one if you sc400 differential. I fogot the part of the tint little shaft im sorry

[is300ss]

Originally Posted by Blizzy

thanks.

with an R154, I will be launching harder than even a stalled up auto. I am bypassing the TC and going right for the five speed. I have one sitting the garage right now actually.

rpm at 30/60/90 is impossible to be anything other than the theoretical numbers. There is not any play in the gear ratios. They are what they are. With my speedo error, the numbers listed previously will be more accurate than anything I will be able to observe.

Thats what I like to hear!! R154!!

yeah I bet its going to be tough with the torque of that V8.

but how about throttle control instead of traction control!

with my r154 and 4.27 gearing...
80mph - 3750rpm (5th gear of course...)

It's pretty high, but its ok. It will keep me from cruise speeding you know what I mean?
plus I just have it leaned out when im not in boost... it works out

[ruishy1]

What is the diff code for the torsen type LSD's ?
is it ao1b, a03b etc.
thanks

[spf_lexus]

Im about to pick up an sc400 here and was curious if the entire pumpkin, d-shaft, LSD and mounts from an mkIV supra can swap directly? I plan to do a 4.7l swap in it and like you guys, dont want a one wheel wonder!

[fastegg]

Originally Posted by ruishy1

What is the diff code for the torsen type LSD's ?
is it ao1b, a03b etc.
thanks

A01A is open ... A01B is LSD..... the A at the end denotes open and B at the end denotes LSD

[fastegg]

WOW!!! That was a great tutorial about changing from an open to a Torsen unit. When i eventually get a torsen unit for my 1998 LS 400 (a torsen or better still a torsen 2 out of a Supra Mk4 auto twin turbo from 1996 up to 2001).... i now know exactly how to do it.... I was going to get a transmission / diff shop to do it but now i have the know how, i'll have a go myself...
Thanks Blizzy, you've just made my day !


1998 LS 400
Bilstien HD shocks
3mm larger diameter K-Mac front sway bar