Welcome to the North American Subaru Impreza Owners Club Wednesday October 1, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Transmission (AT/MT) & Driveline

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 05-17-2010, 03:20 PM   #26
Leonardo
Consigliere
Super Moderator
 
Member#: 185
Join Date: Aug 1999
Chapter/Region: South East
Location: Orlando, Fl
Vehicle:
2009 Civic EX
Silver

Default

Quote:
Originally Posted by Matt Monson View Post
OK. I'll check it out in the morning. And if there's not a way that I can make the 4EAT version fit, I can make a 5EAT version if there's enough demand. It's just a question of whether or not there's actually a market for it, and if people are willing to pay what Modena parts cost to make.
Considering the LegGT and Outback XT only came 5MT on 2005 and then it was all 5EAT till 2009 and there are enough 5EAT sedans in that forum, I think there might be enough interest. Specially since I race my auto and have won two championships with it to use to the "Why in a 5EAT?" argument.
* Registered users of the site do not see these ads.
Leonardo is offline   Reply With Quote
Old 05-17-2010, 03:26 PM   #27
climberd
Scooby Newbie
 
Member#: 183019
Join Date: Jun 2008
Chapter/Region: TXIC
Location: Dallas, TX
Vehicle:
05 LGT Stg3 Wgn
Black

Default

Subscribed for interest in getting a 5eat front LSD developed (assuming is is different from the 4eat version already produced. Would like verification of that part as well
climberd is offline   Reply With Quote
Old 05-17-2010, 07:47 PM   #28
Matt Monson
Scooby Guru
 
Member#: 832
Join Date: Jan 2000
Chapter/Region: RMIC
Location: Teh Ghetto Garage, CO
Vehicle:
99 2.5RS, '85 911
'73 914 and 2012 BRZ

Default

We ordered in part #12 from the schematic on the other page of this thread; the left side housing of the 5EAT open differential. I'll let you know what we find once we measure it.

Though if climberd wanted to mail me his complete spare 5EAT open differential it would give me even more to work with here. I'd happily pay the shipping on it.
Matt Monson is offline   Reply With Quote
Old 05-18-2010, 12:08 AM   #29
Leonardo
Consigliere
Super Moderator
 
Member#: 185
Join Date: Aug 1999
Chapter/Region: South East
Location: Orlando, Fl
Vehicle:
2009 Civic EX
Silver

Default

Doo Eet!!!
Leonardo is offline   Reply With Quote
Old 05-18-2010, 12:25 AM   #30
climberd
Scooby Newbie
 
Member#: 183019
Join Date: Jun 2008
Chapter/Region: TXIC
Location: Dallas, TX
Vehicle:
05 LGT Stg3 Wgn
Black

Default

PM sent, let's do this
climberd is offline   Reply With Quote
Old 05-20-2010, 12:19 PM   #31
Leonardo
Consigliere
Super Moderator
 
Member#: 185
Join Date: Aug 1999
Chapter/Region: South East
Location: Orlando, Fl
Vehicle:
2009 Civic EX
Silver

Default

Awesome!
Leonardo is offline   Reply With Quote
Old 05-20-2010, 03:32 PM   #32
Matt Monson
Scooby Guru
 
Member#: 832
Join Date: Jan 2000
Chapter/Region: RMIC
Location: Teh Ghetto Garage, CO
Vehicle:
99 2.5RS, '85 911
'73 914 and 2012 BRZ

Default

I got ClimberD's 5EAT differential today. Unfortunately it's not going to be as simple as I had hoped. Based on the information I had put together with Flatirons we were thinking that we were going to have to make a spacer ring to push the ring gear towards the pinion.

However, if you look at the picture it's going to go have to go the other way. The black sharpie mark indicates how much has to come off the top have of our differential to bring it down to the right distance to properly place the ring gear. It's almost exactly 10mm.



So where do we go from here? Well, I think the next step is to see what it's going to run to mill off 10mm of material and figure out if it's more cost effective to just cut a handful of new caps, make a run of new diffs, or mill these down.

The other option would be to mill the backside of that ring gear. If you look at that gear it's ridiculously thick. When they cast it, it appears that they just cast a "spacer" into it and potentially it would be cheaper to shave the gear than the diff. I suspect that it's a softer material than our diff bodies and would cut faster and with a less expensive bit on the lathe.
Matt Monson is offline   Reply With Quote
Old 05-20-2010, 04:12 PM   #33
Leonardo
Consigliere
Super Moderator
 
Member#: 185
Join Date: Aug 1999
Chapter/Region: South East
Location: Orlando, Fl
Vehicle:
2009 Civic EX
Silver

Default

But that being said, wouldn't reducing the mass on the ring gear weaken it given as opposed to the harder material on your diff?
Leonardo is offline   Reply With Quote
Old 05-20-2010, 04:27 PM   #34
Matt Monson
Scooby Guru
 
Member#: 832
Join Date: Jan 2000
Chapter/Region: RMIC
Location: Teh Ghetto Garage, CO
Vehicle:
99 2.5RS, '85 911
'73 914 and 2012 BRZ

Default

From a truly technical standpoint, yes, a little bit. But the weakness of the gear is more tied to the teeth size than anything else, and that's already got teeny little teeth.

After I posted I thought of something else though. I bet those ring gear bolts don't go much deeper than the 10mm that has to come off and if the gear was cut then new, deeper holes would have to be cut. And that could pose a structural issue to the ring, in addition to the additional cost.

I'm going to get a bid on cutting the hats of our diff. I can't see it adding more than $50-75 to the list price of the diff. And then if they get popular, we just make another batch later on that's the correct spec from the beginning.
Matt Monson is offline   Reply With Quote
Old 05-20-2010, 05:31 PM   #35
Leonardo
Consigliere
Super Moderator
 
Member#: 185
Join Date: Aug 1999
Chapter/Region: South East
Location: Orlando, Fl
Vehicle:
2009 Civic EX
Silver

Default

Awesome!

So that would actually be the only difference as of right now?
Leonardo is offline   Reply With Quote
Old 05-20-2010, 06:35 PM   #36
FlatironsTuning.com
NASIOC Vendor
 
Member#: 171650
Join Date: Feb 2008
Location: Boulder, Colorado
Default

FWIW, I have just put a Modena front TBD into my 03 WRX, and even though I have only put a few miles on it, the difference is definitely noticable. There is definitely a lot more grip up front, and the car does track going around spirited corners much better.

I am going to try to get on the track in the next couple of weeks to push things a bit and see what a difference it makes, but so far I am very happy with it.

The only thing that bares mentioning is that there is a little noise in 1st and 2nd of the diff working that basically sounds like a faint straight-cut gear whine. I dont' mind this at all, but I wanted to at least mention it.

As I get more miles on this, and hopefully some track time, the plan is to do a more extensive write-up. We'll see how time goes
FlatironsTuning.com is offline   Reply With Quote
Old 05-21-2010, 09:05 AM   #37
g00fy
Scooby Specialist
 
Member#: 82524
Join Date: Mar 2005
Chapter/Region: Tri-State
Location: Morris County, NJ
Vehicle:
2005 35R'd 4eat
Flying Rhombus

Default

I'm picking up my 4eat Diff from fedex today, i'm so excited. Hopefully i'll have it in the car within the next 2 - 3 weeks and i'll post my thoughts.
g00fy is offline   Reply With Quote
Old 05-21-2010, 02:08 PM   #38
g00fy
Scooby Specialist
 
Member#: 82524
Join Date: Mar 2005
Chapter/Region: Tri-State
Location: Morris County, NJ
Vehicle:
2005 35R'd 4eat
Flying Rhombus

Default



hell yes...
g00fy is offline   Reply With Quote
Old 05-21-2010, 02:42 PM   #39
Matt Monson
Scooby Guru
 
Member#: 832
Join Date: Jan 2000
Chapter/Region: RMIC
Location: Teh Ghetto Garage, CO
Vehicle:
99 2.5RS, '85 911
'73 914 and 2012 BRZ

Default

And unlike an OBX diff you will not need to take it apart to file off burrs or chamfer edges or any other such tomfoolery.
Matt Monson is offline   Reply With Quote
Old 05-21-2010, 04:54 PM   #40
g00fy
Scooby Specialist
 
Member#: 82524
Join Date: Mar 2005
Chapter/Region: Tri-State
Location: Morris County, NJ
Vehicle:
2005 35R'd 4eat
Flying Rhombus

Default

Quote:
Originally Posted by Matt Monson View Post
And unlike an OBX diff you will not need to take it apart to file off burrs or chamfer edges or any other such tomfoolery.
I'm no master mechanic, but your diff seemed to have an excellent finish, and definately felt solid. I'll post more thoughts after it's in the car, but from initial inspection it looks like a top of the line piece of equiptment.
g00fy is offline   Reply With Quote
Old 05-22-2010, 01:51 PM   #41
eqt2010
Scooby Newbie
 
Member#: 89745
Join Date: Jun 2005
Location: Monmouth Junction, NJ
Vehicle:
2005 Subaru LegacyGT
ABP

Default

Great thread! I'm definitely in for one if it goes production.
eqt2010 is offline   Reply With Quote
Old 05-22-2010, 03:50 PM   #42
Leonardo
Consigliere
Super Moderator
 
Member#: 185
Join Date: Aug 1999
Chapter/Region: South East
Location: Orlando, Fl
Vehicle:
2009 Civic EX
Silver

Default

Plus imagine all those Outbacks that could use this to better improve their off-road capabilities.
Leonardo is offline   Reply With Quote
Old 06-07-2010, 03:00 PM   #43
Matt Monson
Scooby Guru
 
Member#: 832
Join Date: Jan 2000
Chapter/Region: RMIC
Location: Teh Ghetto Garage, CO
Vehicle:
99 2.5RS, '85 911
'73 914 and 2012 BRZ

Default

Hello,

I just wanted to update this thread with a progress report. I've sent a single diff. off to a local machine shop with a sample of the factory 5spd body and am having them shave off the difference in height. Then we'll need to find a local car here in Colorado to install it into (I'm going to lean on Flatirons for some help in that department. ). After that, assuming it works, I'll open these up for sale through our dealers.

Regards,

Matt Monson
Guard Transmission LLC
Matt Monson is offline   Reply With Quote
Old 07-07-2010, 08:42 AM   #44
g00fy
Scooby Specialist
 
Member#: 82524
Join Date: Mar 2005
Chapter/Region: Tri-State
Location: Morris County, NJ
Vehicle:
2005 35R'd 4eat
Flying Rhombus

Default

If anyones also been following this thread for updates on the 4eat diff. My car went into the shop yesterday to have my motor swapped and diff installed. I'm hoping to have the car back sometime next week, and i'll post IPT's thoughts on the build quality / fit, and i'll post my thoughts on the feel and performance of the installed unit.
g00fy is offline   Reply With Quote
Old 07-07-2010, 09:10 AM   #45
FlatironsTuning.com
NASIOC Vendor
 
Member#: 171650
Join Date: Feb 2008
Location: Boulder, Colorado
Default

Quote:
Originally Posted by g00fy View Post
If anyones also been following this thread for updates on the 4eat diff. My car went into the shop yesterday to have my motor swapped and diff installed. I'm hoping to have the car back sometime next week, and i'll post IPT's thoughts on the build quality / fit, and i'll post my thoughts on the feel and performance of the installed unit.
Keep us posted. I'm definitely curious to see what you think.
FlatironsTuning.com is offline   Reply With Quote
Old 07-07-2010, 09:36 AM   #46
Matt Monson
Scooby Guru
 
Member#: 832
Join Date: Jan 2000
Chapter/Region: RMIC
Location: Teh Ghetto Garage, CO
Vehicle:
99 2.5RS, '85 911
'73 914 and 2012 BRZ

Default

Another update, the 5EAT body is at the machine shop and I am just waiting for it to be returned to me. I think Flatironstuning has found a local crashtestdummy for us to put into a car. Once we are sure we've got it all sorted, they'll put them up for sale. Bear with us. We hope to have it to market around August 1 or so.
Matt Monson is offline   Reply With Quote
Old 07-22-2010, 09:03 AM   #47
g00fy
Scooby Specialist
 
Member#: 82524
Join Date: Mar 2005
Chapter/Region: Tri-State
Location: Morris County, NJ
Vehicle:
2005 35R'd 4eat
Flying Rhombus

Default

Well things are moving alot slower then i expected on my whole engine swap. Sunday the shop got the trans out for me and I dropped it off at IPT monday morning. IPT is finishing up the diff swap today or tomorrow, so then i gotta bring the trans back to the shop that's doing the motor swap and it's just a matter of how soon they can put everything back in.

I'm really hoping this thing is all wrapped up by early next week, I miss having my car, and driving around the work truck with no A/C in this weather sucks. I also can't wait to drive my car with a sweet new front LSD, new motor, and GT35R.
g00fy is offline   Reply With Quote
Old 07-22-2010, 09:29 AM   #48
Matt Monson
Scooby Guru
 
Member#: 832
Join Date: Jan 2000
Chapter/Region: RMIC
Location: Teh Ghetto Garage, CO
Vehicle:
99 2.5RS, '85 911
'73 914 and 2012 BRZ

Default

Since this has been bumped I will update as well. The case was hardened more than the machine shop initially assumed and they had to order in some special bits to cut it down. I've been told they'll return it to be before the end of the week, but we'll see...
Matt Monson is offline   Reply With Quote
Old 07-22-2010, 11:22 AM   #49
g00fy
Scooby Specialist
 
Member#: 82524
Join Date: Mar 2005
Chapter/Region: Tri-State
Location: Morris County, NJ
Vehicle:
2005 35R'd 4eat
Flying Rhombus

Default

Update: Called IPT earlier, my transmission is finished, the diff is officially swapped! Woohoo! Picking it up today after work then dropping it off @ Area1320 to be put back in along with my motor, hopefully it won't be more then a couple days.
g00fy is offline   Reply With Quote
Old 07-22-2010, 11:36 AM   #50
Leonardo
Consigliere
Super Moderator
 
Member#: 185
Join Date: Aug 1999
Chapter/Region: South East
Location: Orlando, Fl
Vehicle:
2009 Civic EX
Silver

Default

I can't wait for the 5EAT one!
Leonardo is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Gauging Interest on 05-09 LegGT specific Crawford air-oil separator. Leonardo Legacy Forum 0 12-24-2009 03:33 PM
WTB: Any Downpipe that would fit on an 02 WRX w/ stock midpipe JeffyLube SCIC Private Classifieds 3 06-02-2009 12:26 AM
Whatever happened to that tribe of orcs we found in the amazon? skimmilk68 Off-Topic 16 12-24-2008 12:35 AM
WTB wheels that would fit a 05+STI Bumble Bee 03 MWSOC Private Classifieds 0 07-15-2007 10:44 PM
WTB: WRX Din Pocket or any others that would fit paperchasin Private 'Wanted' Classifieds 8 11-06-2004 05:37 PM


All times are GMT -4. The time now is 08:29 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.