Diff weight - 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 01-23-2015, 08:43 AM   #1
Junior Member
Thread Starter
 
guttedmiata's Avatar
 
Join Date: Sep 2012
Posts: 438
Total Cats: -3
Default Diff weight

Who has a diff assembly from a 1.8 out of the car and can weigh it for me? I'm doing a getrag swap and forgot to weigh my diff before I sold it. This getrag diff is heavy!
guttedmiata is offline   Reply With Quote
Old 01-23-2015, 09:26 AM   #2
Hug Life
iTrader: (3)
 
Monk's Avatar
 
Join Date: Apr 2014
Location: Huntington, Indiana
Posts: 2,798
Total Cats: 492
Default

Shipping one later today or early tomorrow. I'll let you know this afternoon. Just the guts, or the housing and all?

Edit: The last time I weighed one with the housing, it was ~75 lbs. I'll give you something more specific in a bit.
Monk is offline   Reply With Quote
Old 01-23-2015, 07:37 PM   #3
Junior Member
Thread Starter
 
guttedmiata's Avatar
 
Join Date: Sep 2012
Posts: 438
Total Cats: -3
Default

Housing with guts. Thanks!
guttedmiata is offline   Reply With Quote
Old 01-23-2015, 07:59 PM   #4
Hug Life
iTrader: (3)
 
Monk's Avatar
 
Join Date: Apr 2014
Location: Huntington, Indiana
Posts: 2,798
Total Cats: 492
Default

Diff and housing are 60.8 lbs. Axles add another 25.6.
Monk is offline   Reply With Quote
Old 01-23-2015, 09:52 PM   #5
Supporting Vendor
iTrader: (3)
 
Join Date: Jul 2006
Location: San Diego
Posts: 2,862
Total Cats: 484
Default

What is your Getrag weighing in at?
ThePass is offline   Reply With Quote
Old 01-24-2015, 10:52 AM   #6
Junior Member
iTrader: (5)
 
Join Date: Oct 2011
Location: San Diego, CA
Posts: 402
Total Cats: 21
Default

They both weigh the same right around 68lbs.
slmhofy is offline   Reply With Quote
Old 01-24-2015, 11:05 AM   #7
Junior Member
Thread Starter
 
guttedmiata's Avatar
 
Join Date: Sep 2012
Posts: 438
Total Cats: -3
Default

Quote:
Originally Posted by slmhofy View Post
They both weigh the same right around 68lbs.
It was just posted above that the mazda unit weighs 60.8lbs.

I won't be able to weigh the getrag until tomorrow and it will just be the diff. Still waiting on the mounting bracket and axles from v8roadsters. I'll post the diff weight tomorrow and then an update when I can do a full comparison.
guttedmiata is offline   Reply With Quote
Old 01-24-2015, 11:22 AM   #8
Senior Member
iTrader: (1)
 
Join Date: Jul 2012
Location: durham NC
Posts: 767
Total Cats: 115
Default

If you wanted to figure out the weight of the stock internals, I have a housing I can weigh.

Last edited by asmasm; 01-24-2015 at 08:18 PM.
asmasm is offline   Reply With Quote
Old 01-24-2015, 07:59 PM   #9
Junior Member
iTrader: (5)
 
Join Date: Oct 2011
Location: San Diego, CA
Posts: 402
Total Cats: 21
Default

Quote:
Originally Posted by guttedmiata View Post
It was just posted above that the mazda unit weighs 60.8lbs.

I won't be able to weigh the getrag until tomorrow and it will just be the diff. Still waiting on the mounting bracket and axles from v8roadsters. I'll post the diff weight tomorrow and then an update when I can do a full comparison.
MSM Diff = 67.8lbs with out bolts in the front


Getrag Diff = 67.6lbs with 6 long bolts and the rubber piece


My shipping scale may not be super accurate, but they're almost the exact same weight.

The entire Getrag swap diff(67.6), level 1 axles(35), drive shaft(11.6), mount(11) weighs ~125lbs.

A complete MSM kit diff(67.8), axles(27.6), drive shaft(11.8) weights around ~107lbs.

So the entire swap add 18lbs.

Mine has been done since last week. I'll be posting up a review fairly soon.

slmhofy is offline   Reply With Quote
Old 01-24-2015, 10:57 PM   #10
Junior Member
Thread Starter
 
guttedmiata's Avatar
 
Join Date: Sep 2012
Posts: 438
Total Cats: -3
Default

Nice! I can live with 18lbs. Looks like I need to source another part. I don't have that piece that goes between the pinion flange and the driveshaft. Didn't came with my diff.
guttedmiata is offline   Reply With Quote
Old 01-24-2015, 11:25 PM   #11
Junior Member
iTrader: (5)
 
Join Date: Oct 2011
Location: San Diego, CA
Posts: 402
Total Cats: 21
Default

Quote:
Originally Posted by guttedmiata View Post
Nice! I can live with 18lbs. Looks like I need to source another part. I don't have that piece that goes between the pinion flange and the driveshaft. Didn't came with my diff.
You're in luck sir!

You don't need it! =P

Haha. Seriously, like you said, it's an isolator that's used with the cadillac setup, but isn't used on our kit. I think it'd been nice for them to have designed the kit to use it, but I believe since there is a yoke on the drive shaft, it's not needed.

Regardless it feels good. The only thing I'm still getting used to is the sound of everything. I think it's the polly diff bushings in the diff.

I beat on it pretty hard today at AutoX in Qualcomm stadium parking lot which is falling apart and all is still good.
slmhofy is offline   Reply With Quote
Old 01-24-2015, 11:47 PM   #12
Junior Member
Thread Starter
 
guttedmiata's Avatar
 
Join Date: Sep 2012
Posts: 438
Total Cats: -3
Default

Yeah, probably not gonna notice the sound here. .
Shawndell is putting 95a bushings in mine at my request. He wasn't wanting to, but when I described the car to him and told him I'm running solid aluminum motormounts, he agreed.
guttedmiata is offline   Reply With Quote
Old 01-26-2015, 02:49 PM   #13
Supporting Vendor
iTrader: (3)
 
Join Date: Jul 2006
Location: San Diego
Posts: 2,862
Total Cats: 484
Default

+ 18 lbs in the rear where you need the weight (if anywhere) is not bad at all
ThePass is offline   Reply With Quote
Old 01-26-2015, 05:42 PM   #14
Elite Member
iTrader: (1)
 
Leafy's Avatar
 
Join Date: Jun 2012
Location: NH
Posts: 9,091
Total Cats: 90
Default

Is that 60lb miata diff an open diff per chance? And open is going to weight noticeably less than a torsen.

What LSD unit is in the getrag?
Leafy is offline   Reply With Quote
Old 01-26-2015, 06:34 PM   #15
Junior Member
iTrader: (2)
 
Join Date: Apr 2010
Location: albion, mi
Posts: 303
Total Cats: 17
Default

Quote:
Originally Posted by Leafy View Post
Is that 60lb miata diff an open diff per chance? And open is going to weight noticeably less than a torsen.

What LSD unit is in the getrag?
He does say MSM diff.....
glade is offline   Reply With Quote
Old 01-26-2015, 06:35 PM   #16
Elite Member
iTrader: (1)
 
Leafy's Avatar
 
Join Date: Jun 2012
Location: NH
Posts: 9,091
Total Cats: 90
Default

Quote:
Originally Posted by glade View Post
He does say MSM diff.....
The MSM diff was 67.8lbs.
Leafy is offline   Reply With Quote
Old 01-26-2015, 07:28 PM   #17
Hug Life
iTrader: (3)
 
Monk's Avatar
 
Join Date: Apr 2014
Location: Huntington, Indiana
Posts: 2,798
Total Cats: 492
Default

Leafy, yes, the diff I weighed was open out of a 99. Confirmed by the scale at UPS.
Monk is offline   Reply With Quote
Old 01-26-2015, 11:39 PM   #18
Junior Member
Thread Starter
 
guttedmiata's Avatar
 
Join Date: Sep 2012
Posts: 438
Total Cats: -3
Default

Quote:
Originally Posted by Leafy View Post

What LSD unit is in the getrag?
It's a clutch style LSD
guttedmiata is offline   Reply With Quote
Old 01-26-2015, 11:54 PM   #19
Elite Member
iTrader: (1)
 
Leafy's Avatar
 
Join Date: Jun 2012
Location: NH
Posts: 9,091
Total Cats: 90
Default

Is it a salisbury with ramps or like a posi type that only applies a set amount of friction force?
Leafy is offline   Reply With Quote
Old 01-27-2015, 12:06 AM   #20
Junior Member
Thread Starter
 
guttedmiata's Avatar
 
Join Date: Sep 2012
Posts: 438
Total Cats: -3
Default

Posi type I'm pretty sure. Didn't even research it all that well to be honest. Correct gearing was more of a concern at the moment. I'm sure it's not gonna feel like the Giken did.
guttedmiata is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
91 1.6l turbo complete part out. Tony the Tiger Miata parts for sale/trade 63 12-29-2016 03:23 AM
Prepping my '95 for track asmasm Build Threads 82 05-26-2016 05:37 PM
WTB MP62 (Hotside) (NB2) Rick02R WTB 3 01-03-2016 08:18 PM
Another Alternator thread ihiryu General Miata Chat 9 09-28-2015 11:22 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 09:47 AM.