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


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Old 04-05-2018, 11:30 AM   #15
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This is not good has anyone with stock gearing/stage 2 motor experienced this or its because of 'power' and speedier ratio?

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If you're not seeing track time I wouldn't worry about it overheating.. He's got a pretty extreme setup..
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Old 04-05-2018, 11:32 AM   #16
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If you're not seeing track time I wouldn't worry about it overheating.. He's got a pretty extreme setup..
Au contraire. The car hardly sees the street.
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Old 04-05-2018, 11:36 AM   #17
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Or sees .. from above the trailer?
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Old 04-05-2018, 11:50 AM   #18
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Au contraire. The car hardly sees the street.
Yikes! Then you may want to monitor that shit! Can I assume you have an OS Giken diff as well? Or do you have a different mechanical LSD?

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Old 04-05-2018, 12:44 PM   #19
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Unfortunately, no, I don't know. My LSD was stuck locked while on track. When it cooled down, it seemed ok again, but it permanently became an open diff after that.
Does OS Giken have a lifetime warranty? Or did they help at all with replacing it?
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Old 04-05-2018, 12:52 PM   #20
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Does OS Giken have a lifetime warranty? Or did they help at all with replacing it?
Will most likely have to pay OSG to rebuild it, but not sure yet. I'm in the middle of swapping in a new unit right now.
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Old 04-05-2018, 01:28 PM   #21
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OSG is really good at telling people to get bent. had a friend kill two of their diffs in a E46 ZHP and they told him sorry, sucks to be you and we know its garbage.
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Old 04-05-2018, 02:16 PM   #22
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OSG is really good at telling people to get bent. had a friend kill two of their diffs in a E46 ZHP and they told him sorry, sucks to be you and we know its garbage.
Good to know! Now I don't feel so bad for not buying one! I was under the impression they were the bees knees!!
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Old 04-05-2018, 04:14 PM   #23
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They might be better on this platform. The only other OSG part i know of being used is a quad disk clutch in a friends 1200whp supra. it seems to do well.
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Old 04-08-2018, 08:01 PM   #24
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I tried this one out. I had to notch some of the fins off to clear the Perrin exhaust.

https://www.ebay.com/itm/SICKSPEED-P...FWgXlJ&vxp=mtr
What are your impressions of the cover so far? happen to have pictures of it installed?
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Old 04-09-2018, 10:16 AM   #25
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Definitely serves it's purpose! For the price it works great.. I didn't want to buy the Greddy or Cusco and then have to cut it up.. plus this part doesn't require R&D like a header..



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Old 04-09-2018, 07:13 PM   #26
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Good to know! Now I don't feel so bad for not buying one! I was under the impression they were the bees knees!!
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OSG is really good at telling people to get bent. had a friend kill two of their diffs in a E46 ZHP and they told him sorry, sucks to be you and we know its garbage.
A properly configured LSD will last quite awhile and will be consistent.
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Old 04-09-2018, 07:53 PM   #27
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A properly configured LSD will last quite awhile and will be consistent.
What diff do you guys run? Any cooling added? Do you think the OS-Giken just couldn't handle the JUN V8 with higher FD?
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Old 04-09-2018, 08:19 PM   #28
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What diff do you guys run? Any cooling added? Do you think the OS-Giken just couldn't handle the JUN V8 with higher FD?
We have used units including Tomei, Kaaz, Cusco, ATS, OS Giken, Guard, and some Drexler types. Cooling is dependent on how the diff is put together and what your application is. Setup configuration is important to consistency and reliability for its intended application.
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