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Success: Installed an IS300 Torsen LSD in my IS250

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Old 08-24-11, 05:10 AM
  #31  
B16da9
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Originally Posted by Jeff Lange
Yes, but remember that the MK3 Supra diffs are clutch type and 20 years (at least) old, they're probably quite worn by now, so you'd likely want to overhaul it before installing it.

Jeff
There's quiet a few JDM parts importers in the South Florida area so if I go with the MKIII diff it will be one of those but I'll still overhaul it.
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Old 08-24-11, 07:37 AM
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Jeff Lange
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Also if you go with a Supra diff, you'll of course just use the differential itself, you'll need to use your IS housing.

Jeff
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Old 08-24-11, 08:33 AM
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B16da9
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Thank you for the heads up, I found a JDM IS300 LSD diff. I'll probably buy it if the price is right.
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Old 08-24-11, 09:32 AM
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brociouz
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Awesome project Jeff.
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Old 08-24-11, 09:41 AM
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KillaIS250
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Very nice project! I'm sure there will be a lot of people trying this now
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Old 08-24-11, 09:45 AM
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Very nice to hear! So do you have any plans to test this on autocross on race track?
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Old 08-24-11, 10:56 AM
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Jeff Lange
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I will likely try autocross next year when I get some new tires and suspension. Until then I'll just been enjoying it through various corners in the city and mountains.

I've driven the car quite a bit more since I first installed it, and it is a noticeable improvement through "spirited" cornering.

Jeff
Last edited by Jeff Lange; 08-29-11 at 02:42 PM.
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Old 01-08-12, 10:31 AM
  #38  
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What was the purpose of doing this?
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Old 01-08-12, 10:56 AM
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Improved grip and handling performance.

Jeff
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Old 01-22-13, 07:42 AM
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nice. so my car qualifies ;D
time to cough up some cash!
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Old 01-31-13, 11:05 PM
  #41  
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Just wanted to add one more door jamb code here:

B02C also means there is an LSD and I will ASSUME B02B as well if that exists, since both B and C = LSD. The LSD I got was from an auto 2001 IS 300 and the 02 means the E-Shift gearbox I believe. It is also 3.91:1.
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Old 02-28-13, 09:58 PM
  #42  
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Are there any benefit in doing this mod to an automatic IS250?
Last edited by sgmbab; 02-28-13 at 10:53 PM.
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Old 02-28-13, 10:06 PM
  #43  
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are there anything for the AWD 2IS?
Just wondering... lol
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Old 03-01-13, 09:22 AM
  #44  
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Originally Posted by IS250TW
are there anything for the AWD 2IS?
Just wondering... lol
Umm did you not read the first post?

"06-08 IS250 AWD models have a 190mm rear differential (A Torsen from an IS200/RS200 Altezza might work well in this application)
06-11 IS250 RWD & 09-11 IS250 AWD models have a 205mm rear differential (The IS300 Torsen is a bolt-in upgrade for this application)"

...lol
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Old 03-01-13, 09:26 AM
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Originally Posted by IS250TW
are there anything for the AWD 2IS?
Just wondering... lol
You have awd this would be pointless.
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