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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain.


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Old 12-03-2011, 06:29 AM   #1
Andy
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Confirmed Torsen Differential

I'm happy about this!

"Good news! Toyota 86 will feature Torsen LSD and gearbox is from Toyota Altezza / Lexus IS (automatic from IS-F), so we already have tons of spare parts. Almost all suspension is the same as Impreza"
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Old 12-03-2011, 08:07 AM   #2
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Me gusta torsen...
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Old 12-03-2011, 09:37 AM   #3
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the automatic in the IS-F has eight gears

http://en.wikipedia.org/wiki/Lexus_IS_(XE20)#IS_F_SPDS

I´m pretty sure they mean IS 250 or IS 350
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Old 12-03-2011, 05:57 PM   #4
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I want to know if they are using the Subaru r160/r180 diffs. If so, then we will have plenty of aftermarket support out of the box.
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Old 12-03-2011, 06:07 PM   #5
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Quote:
Originally Posted by torquemada View Post
the automatic in the IS-F has eight gears

http://en.wikipedia.org/wiki/Lexus_IS_(XE20)#IS_F_SPDS

I´m pretty sure they mean IS 250 or IS 350
If the auto is from ISx50, this car fail so bad. It's slow(lag), and unresponsive. From what I have heard, the 6spd auto is based on 8spd from IS-F. The one similar if not the same as 2013 GS.
Manual one is based off IS300's tranny, but I think the one in FR-S/BRZ is upgraded version.
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Old 12-03-2011, 06:12 PM   #6
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Cool.

If it's an existing diff that gives more opportunity for aftermarket options like OS Giken, Quaife, or whatever you prefer.
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Old 12-03-2011, 06:33 PM   #7
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Quote:
Originally Posted by Silverpike View Post
I want to know if they are using the Subaru r160/r180 diffs. If so, then we will have plenty of aftermarket support out of the box.
I seem to recall it being mentioned to be Toyota piece, but I could be wrong. It wouldn't be an R160 or R180 though, those are much too weak for a RWD car. They are Nissan diffs, and the last time either of them was used in a rwd production car was the 510 and the original 240z respectively. If they were going to use a Nissan diff, the obvious choice would be the R200 (silvia/240sx, n/a 300z) as it is quite strong, and is an easy transplant into the Impreza rear subframe.
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Old 12-03-2011, 06:44 PM   #8
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This is great news.
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Old 12-03-2011, 06:55 PM   #9
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Quote:
Originally Posted by old greg View Post
I seem to recall it being mentioned to be Toyota piece, but I could be wrong. It wouldn't be an R160 or R180 though, those are much too weak for a RWD car. They are Nissan diffs, and the last time either of them was used in a rwd production car was the 510 and the original 240z respectively. If they were going to use a Nissan diff, the obvious choice would be the R200 (silvia/240sx, n/a 300z) as it is quite strong, and is an easy transplant into the Impreza rear subframe.
If by "easy transplant" you mean hours of cutting, welding, and relocation, then yes.

I don't really care if it's a Subaru piece, I'm just looking for reliability and aftermarket compatibility.
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Old 12-03-2011, 07:11 PM   #10
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If by "easy transplant" you mean hours of cutting, welding, and relocation, then yes.
My mistake. I knew the mounting points were the same, but didn't realize there were clearance issues.
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Old 12-03-2011, 07:54 PM   #11
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Quote:
Originally Posted by Silverpike View Post
I want to know if they are using the Subaru r160/r180 diffs.
Its neither:



I'm not sure exactly what it is, but folks on that MotoIQ page said its from an IS350 or something. Is that an R200?
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Old 12-03-2011, 09:03 PM   #12
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I've been doing a bit of reading.

The pumpkin is from the IS, but the differential itself is very likely to be the same one that comes in the IS-F. The IS-250/350 have open diffs as far as I can tell, while the ISF comes with a torsen. Aftermarket-wise, there are currently replacements available from OS Giken and Tom's. And if the ring/pinion gears are as strong as those in the IS's, there shouldn't be any need to worry about it's strength.
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Old 12-03-2011, 10:53 PM   #13
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I'm very happy about the Torsen.
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Old 12-04-2011, 06:34 AM   #14
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My first post here I actually just joined to ask what kind of diff this car will have - really good news about the Torsen! I assume this will be the same for both variants (BRZ and GT-86)?

I currently drive a BMW 1-series coupe (120d), and fitting a Quaife diff in it last year completely transformed the car! Made this vid right after the run-in period was over, hopefully the GT-86 will be at least as happy to powerslide
[U2b]fLFupcWTdAs[/U2b]
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