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Old 01-22-2008, 05:46 PM   #1
DroppedClutch
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Default Beatrush rear diff brace installed

If any of you ever install one of these, save yourself some trouble and plan on dropping the subframe right off the bat; about 3/8" will do it. I had extracted the center diff studs to add bushings to the stock brace, and it is just too hard to get all the holes to line up and reinstalled the studs. If you don't pull the studs, there isn't enough clearance to slide the brace over the studs without dropping the subframe anyway. Maybe the included instructions mentioned this, but they are only in Japanese.

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Last edited by DroppedClutch; 01-22-2008 at 05:54 PM.
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Old 01-22-2008, 05:57 PM   #2
shemoves
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good tip, thanks. nice piece btw
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Old 01-22-2008, 06:03 PM   #3
pweizman
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What does it do?

It looks like you are putting a brace on an already stout subframe member.

Also, what is the thing sticking out of the plug on the diff.? A sensor?

Later,
Patrick
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Old 01-22-2008, 06:52 PM   #4
DroppedClutch
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It's not re-enforcing the subframe, like it may appear. The rear of the differential is carried by a brace. You can see the end of it in the photo; notice the red of its bushing. The Beatrush brace acts in tandem with this stock brace. The two end mounts are bolded to the subframe, but the center ones are only bolted to the diff case. It might look like it's bolted to the subframe in the center, but it's actually passing through two holes and touching the stock diff brace within.

The thing sticking out of the diff is a temp sensor; stock on the STi's.
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Old 01-22-2008, 07:04 PM   #5
Chris_M
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I've been looking at all their different subframe setups. How is this one? can you tell a difference?
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Old 01-22-2008, 07:50 PM   #6
DroppedClutch
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I can't honestly say that I can tell a difference directly attributed to this brace, because while I was under there I installed bushing on the stock rear diff brace and the front diff brace. I also installed lock out bolts. The combination of all this is noticeable. Launching hard from a stop is improved; feels more... solid... stable. Coming out of a corner with the right foot on the floor shows the most improvement. Understeer tendencies are reduced; the back end comes around and falls back inline with much less drama than before. The knocking from the subframe and suspension is definitely reduced, but not eliminated... for me anyway; the group-n top mounts I have make a lot of noise.
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Old 01-22-2008, 10:42 PM   #7
kos
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nice!
i bought this for my friend for xmas and he loves it. he also has the whiteline locking bolts like you
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Old 01-23-2008, 01:09 AM   #8
joebud
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nice writeup. It would be a good article for a website or blog.
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Old 01-23-2008, 01:13 AM   #9
DroppedClutch
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Old 01-23-2008, 03:30 AM   #10
SubeSTIle
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nice man, im going to have to invest in this for the RS. how long did it take you to install? me and shemoves found out the hard way for lineing up those stupid diff studs... though it can be done with alot of effort and a jack...
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Old 01-23-2008, 01:52 PM   #11
DroppedClutch
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If you think it's hard lining them up normally, you should try it with a third hole to consider and not even being able to visually check if all the holes are in line because of the brace.

If I had to do it again, I think I could do it within a hour... Just the brace and now knowing what I mentioned in the original post.
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Old 01-23-2008, 04:41 PM   #12
SubeSTIle
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as soon as my car is actually running... ill worry about putting money into making it handle better haha. but soon... oh so soon.. i think this is the first productive thread SWIC has seen in months. thanks for bringing us out of the slums haha
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Old 01-23-2008, 04:41 PM   #13
SubeSTIle
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nasioc lag ftl

Last edited by SubeSTIle; 01-23-2008 at 07:01 PM.
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Old 01-23-2008, 05:38 PM   #14
szeny
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Double post. BAN
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Old 01-23-2008, 05:54 PM   #15
DroppedClutch
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Quote:
Originally Posted by SubeSTIle View Post
i think this is the first productive thread SWIC has seen in months. thanks for bringing us out of the slums
You're welcome. I'm channeling the SWIC spirit of two years ago.
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Old 01-23-2008, 05:59 PM   #16
Deuce Cam
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You don't need to lower the subframe to install the beatrush piece. Although it wasn't easy, I was able to install it with the studs on the rear diff in place and without lowering the subframe.

I installed the beatrush rear diff support bar and TiC race rear diff mount bushings on my 06 sti at the same time. The beatrush piece didn't seem to fit over the studs/bolts after I reinstalled the rear diff mount and studs. There didn't seem to be enough room to fit the piece between the studs and the underbody of the car.

It does fit, you just have to be patient and creative. Keep in mind that your rear diff isn't bolted in until the beatrush piece is installed so you have some play in the assembly (I had my diff supported by a jack. Also the 2 outer mounting points are bolts which aren't completely fixed like the studs so they give some play as well.
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Old 01-23-2008, 07:48 PM   #17
DroppedClutch
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Quote:
Originally Posted by Deuce Cam View Post
patient and creative
Fast and easy (like my mom) still gets my vote.
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