so i think my differential is as broke as this thread title - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Suspension, Brakes, Drivetrain discuss the wondrous effects of boost and your miata...

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 04-27-2010, 12:11 AM   #1
Elite Member
Thread Starter
iTrader: (17)
 
Join Date: Apr 2009
Location: Atlanta, GA
Posts: 2,831
Total Cats: 0
Default so i think my differential is as broke as this thread title

i posted this in my build thread but have had no response so ill make a thread about it!




i started to drain the oil in my differential, and when i removed the drain plug i found this. i cleaned up the biggest pieces that were on the drain plug.

Name:  IMG_0169.jpg
Views: 10
Size:  40.1 KB

all of this was on the drain plug as well.



i drained all of the oil in it.

Name:  IMG_0165.jpg
Views: 5
Size:  44.1 KB

then i opened the differential up and found all this inside and i cant figure out where it came from.

Name:  IMG_0173.jpg
Views: 5
Size:  26.2 KB

the ring and pinion are all not scared or chewed up with the exception of one tooth on the ring. but it looks more like a casting flaw. i dont know where all this **** came from. i inspected the internal without taking the whole thing apart and have not found where the shards came from.
WonTon is offline   Reply With Quote
Old 04-27-2010, 01:35 AM   #2
Junior Member
iTrader: (3)
 
Join Date: Mar 2008
Location: Murphy, Tx
Posts: 182
Total Cats: 6
Default

That looks like part of the cone clutch from the tochigi fuji LSD. Apparently a relatively common failure.

http://forum.miata.net/vb/showthread.php?t=314048
Fidgitk is offline   Reply With Quote
Old 04-27-2010, 01:45 AM   #3
Elite Member
Thread Starter
iTrader: (17)
 
Join Date: Apr 2009
Location: Atlanta, GA
Posts: 2,831
Total Cats: 0
Default

yeah, i have been reading on there about that. just gone done reading the thread stating its pieces of the 03 T-F's cone clutch.

now i gotta figure out what im gonna do and what my best options are.

1. if the 3.909 R&P is okay reuse them but use a torsen LSD
2. buy a 3.6 R&P and use a torsen LSD
3. just buy a torsen 3.9
4. just buy a torsen 4.10
WonTon is offline   Reply With Quote
Old 04-27-2010, 03:26 AM   #4
Elite Member
iTrader: (6)
 
Join Date: Nov 2007
Location: Southlake,Texas
Posts: 3,251
Total Cats: 17
Default

3.6 with Torsen and 6 speed is FTW
Bond is offline   Reply With Quote
Old 04-27-2010, 04:42 AM   #5
Elite Member
Thread Starter
iTrader: (17)
 
Join Date: Apr 2009
Location: Atlanta, GA
Posts: 2,831
Total Cats: 0
Default

where can i find just the Torsen internals minus the R&P so i can toss em in my housing?
WonTon is offline   Reply With Quote
Old 04-27-2010, 07:44 AM   #6
meatbag
iTrader: (50)
 
gospeed81's Avatar
 
Join Date: Nov 2008
Location: Houston, TX
Posts: 7,357
Total Cats: 26
Default

Quote:
Originally Posted by Fidgitk View Post
That looks like part of the cone clutch from the tochigi fuji LSD. Apparently a relatively common failure.

http://forum.miata.net/vb/showthread.php?t=314048
+1 Did a good bit of research on this when I had one on the shelf, but never found out for sure if it was mileage related or power related, and wanted to know if the "good" units stood up to turbo abuse.

It seems that all the ones that failed under stock power happened before 40K or so miles...and if they last longer than that then they just keep going.

Do you know how many miles were on the car it came out of?

As far as power/abuse, well, we've seen your work before.
gospeed81 is offline   Reply With Quote
Old 04-27-2010, 09:06 AM   #7
Elite Member
iTrader: (12)
 
Join Date: Sep 2007
Location: Charlotte, NC
Posts: 6,868
Total Cats: 66
Default

Contact spoolin2bars on here, he is selling a TorSen from a S2K....which is the same Torsen used from 95.5 to 02 for $250.....the only thing you'll need are MSM axles though.
Doppelgänger is offline   Reply With Quote
Old 04-27-2010, 11:37 AM   #8
Junior Member
iTrader: (3)
 
Join Date: Mar 2008
Location: Murphy, Tx
Posts: 182
Total Cats: 6
Default

Or you can get one of the OBX LSDs and be our guinea pig to see if they hold up or not...
Fidgitk is offline   Reply With Quote
Old 04-27-2010, 11:44 AM   #9
Elite Member
iTrader: (12)
 
Join Date: Sep 2007
Location: Charlotte, NC
Posts: 6,868
Total Cats: 66
Default

They hold up....I'd get one if I needed one.

A friend of mine put on in his FC RX-7 that saw a TON of abuse (drifting)...though it wasn't boosted or anything....it still held up with no problems. I highly doubt the OBX actually makes though, I'd be more likely to believe they get them from a reputable manufacturer who makes diffs, but OBX has worked out a special price.
Doppelgänger is offline   Reply With Quote
Old 04-27-2010, 03:10 PM   #10
Elite Member
Thread Starter
iTrader: (17)
 
Join Date: Apr 2009
Location: Atlanta, GA
Posts: 2,831
Total Cats: 0
Default

Quote:
Originally Posted by gospeed81 View Post
+1 Did a good bit of research on this when I had one on the shelf, but never found out for sure if it was mileage related or power related, and wanted to know if the "good" units stood up to turbo abuse.

It seems that all the ones that failed under stock power happened before 40K or so miles...and if they last longer than that then they just keep going.

Do you know how many miles were on the car it came out of?

As far as power/abuse, well, we've seen your work before.
the car is was pulled from had almost 80k on its clock. i thought the same thing, every documented failure was under 40k miles.

Quote:
Originally Posted by Doppelgänger View Post
Contact spoolin2bars on here, he is selling a TorSen from a S2K....which is the same Torsen used from 95.5 to 02 for $250.....the only thing you'll need are MSM axles though.
ill look into it mike....i gotta come up with money first.

and thanks to the mod for fixing my thread title. after i hit post thread i thought to myself i should have said something different and if is supposed to be is...
WonTon is offline   Reply With Quote
Old 04-30-2010, 07:42 PM   #11
Newb
iTrader: (1)
 
Join Date: Apr 2010
Location: PCB Florida
Posts: 21
Total Cats: 0
Default

do you have a torsen or vlsd?
boostedgreddymx5 is offline   Reply With Quote
Old 05-01-2010, 02:35 AM   #12
Elite Member
Thread Starter
iTrader: (17)
 
Join Date: Apr 2009
Location: Atlanta, GA
Posts: 2,831
Total Cats: 0
Default

its the T-F LSD unit that came out of a 2003 sport package. its not a Torsen, and i dont think its a VLSD...
WonTon is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
1994 Spec Miata Race Car SM/SM2/SSM For Sale Quinn Cars for sale/trade 6 10-23-2016 08:58 AM
OTS Bilstein to motorsports ASN conversion stoves Suspension, Brakes, Drivetrain 5 04-21-2016 04:00 PM
Going back to stock. Need some 1.6 parts. Trent WTB 2 10-01-2015 01:15 PM
Leaky Wilwoods mx592 Suspension, Brakes, Drivetrain 1 10-01-2015 01:45 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 02:08 PM.