Beatrush rear diff brace installed

DroppedClutch · 01-22-2008, 04:46 PM

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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shemoves · 01-22-2008, 04:57 PM

good tip, thanks. nice piece btw

pweizman · 01-22-2008, 05:03 PM

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

DroppedClutch · 01-22-2008, 05:52 PM

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.

Chris_M · 01-22-2008, 06:04 PM

I've been looking at all their different subframe setups. How is this one? can you tell a difference?

DroppedClutch · 01-22-2008, 06:50 PM

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.

kos · 01-22-2008, 09:42 PM

nice!
i bought this for my friend for xmas and he loves it. he also has the whiteline locking bolts like you

joebud · 01-23-2008, 12:09 AM

nice writeup. It would be a good article for a website or blog.

DroppedClutch · 01-23-2008, 12:13 AM

SubeSTIle · 01-23-2008, 02:30 AM

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...

DroppedClutch · 01-23-2008, 12:52 PM

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.

SubeSTIle · 01-23-2008, 03:41 PM

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

SubeSTIle · 01-23-2008, 03:41 PM

nasioc lag ftl

szeny · 01-23-2008, 04:38 PM

Double post. BAN

DroppedClutch · 01-23-2008, 04:54 PM

Quote:

Originally Posted by SubeSTIle

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.

Deuce Cam · 01-23-2008, 04:59 PM

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.

DroppedClutch · 01-23-2008, 06:48 PM

Quote:

Originally Posted by Deuce Cam

patient and creative

Fast and easy (like my mom) still gets my vote.

01-22-2008, 04:46 PM	#1
DroppedClutch Scooby Specialist Member#: 52313 Join Date: Jan 2004 Chapter/Region: SWIC Location: Chandler, AZ Vehicle: 2005 STiOmgWtfBbq20G 2007 MS3 Black	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. * Registered users of the site do not see these ads. Last edited by DroppedClutch; 01-22-2008 at 04:54 PM.

01-23-2008, 03:41 PM	#13
SubeSTIle Scooby Specialist Member#: 80736 Join Date: Feb 2005 Chapter/Region: SWIC Location: West Valley, AZ Vehicle: 1999 FXT White E85 is for girls	nasioc lag ftl Last edited by SubeSTIle; 01-23-2008 at 06:01 PM.

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01-22-2008, 04:57 PM	#2
shemoves Scooby Guru Member#: 80663 Join Date: Jan 2005 Chapter/Region: SWIC Location: Glendale, AZ Vehicle: 1997 Outback	good tip, thanks. nice piece btw

01-22-2008, 05:03 PM	#3
pweizman Scooby Newbie Member#: 131268 Join Date: Nov 2006 Location: Kent...this is Vehicle: .... GOD........	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

01-22-2008, 05:52 PM	#4
DroppedClutch Scooby Specialist Member#: 52313 Join Date: Jan 2004 Chapter/Region: SWIC Location: Chandler, AZ Vehicle: 2005 STiOmgWtfBbq20G 2007 MS3 Black	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.

01-22-2008, 06:04 PM	#5
Chris_M Scooby Specialist Member#: 116665 Join Date: Jun 2006 Chapter/Region: BAIC Location: Modesto, CA Vehicle: 06-7 WRSTI Team Snail	I've been looking at all their different subframe setups. How is this one? can you tell a difference?

01-22-2008, 06:50 PM	#6
DroppedClutch Scooby Specialist Member#: 52313 Join Date: Jan 2004 Chapter/Region: SWIC Location: Chandler, AZ Vehicle: 2005 STiOmgWtfBbq20G 2007 MS3 Black	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.

01-22-2008, 09:42 PM	#7
kos Scooby Specialist Member#: 118334 Join Date: Jun 2006 Chapter/Region: SWIC Location: attacking apexes Vehicle: #555 2006 / 2005 S-AWD+TT2 WRX / RS Daily	nice! i bought this for my friend for xmas and he loves it. he also has the whiteline locking bolts like you

01-23-2008, 12:09 AM	#8
joebud Scooby Newbie Member#: 55089 Join Date: Feb 2004 Chapter/Region: SWIC Location: GoodSpeed Performance	nice writeup. It would be a good article for a website or blog.

01-23-2008, 12:13 AM	#9
DroppedClutch Scooby Specialist Member#: 52313 Join Date: Jan 2004 Chapter/Region: SWIC Location: Chandler, AZ Vehicle: 2005 STiOmgWtfBbq20G 2007 MS3 Black

01-23-2008, 02:30 AM	#10
SubeSTIle Scooby Specialist Member#: 80736 Join Date: Feb 2005 Chapter/Region: SWIC Location: West Valley, AZ Vehicle: 1999 FXT White E85 is for girls	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...

01-23-2008, 12:52 PM	#11
DroppedClutch Scooby Specialist Member#: 52313 Join Date: Jan 2004 Chapter/Region: SWIC Location: Chandler, AZ Vehicle: 2005 STiOmgWtfBbq20G 2007 MS3 Black	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.

01-23-2008, 04:38 PM	#14
szeny Scooby Guru Member#: 81383 Join Date: Feb 2005 Chapter/Region: SWIC Location: Paradise Valley Vehicle: 07 335i e90 TiAG/Dakota Black	Double post. BAN

01-23-2008, 04:59 PM	#16
Deuce Cam Scooby Specialist Member#: 130444 Join Date: Oct 2006 Location: Chandler Vehicle: '85 AE86 GTS	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.