91 Miata diff swap

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TroyV
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Re: 91 Miata diff swap

Post by TroyV » Wed Feb 16, 2011 4:43 pm

6PAK72 wrote:T3 IS a bitch with an open diff - I slide all the way from the turn-in to the top of the hill. T11/12 is OK, I mostly am on maintenance throttle until the apex of 12. T2A is crazy, though. In Wasilko's car I can turn in and put it nearly on the curb, and accelerate into 2B. In my car if I try that...well, Will has followed me through there at least 3 times where he has had to drive around a spinning blue Miata.

Thanks again, this is great info.

Troy, I'm going to flow-meter your new engine :!:
I hear that Will character can be kind of a bully when riding on your bumper.. :)

Lester has the engine running, which is very exciting... Of course I had to play it off like "eh whatever" in front of him......lest he think that I'm being too anxious.
Troy Velazquez
#5 T50

Dtangard
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Re: 91 Miata diff swap

Post by Dtangard » Thu Feb 17, 2011 2:47 pm

CP wrote:I'll bet T3 is a bitch with an open diff...probably T11/12 too.

T3 is fun with an open diff! Troy might remember sliding through there a few times with me.
Derek
#01 T40
1995 Miata

TroyV
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Re: 91 Miata diff swap

Post by TroyV » Thu Feb 17, 2011 2:54 pm

Actually, I do remember that, but your driving was always very well controlled.
Troy Velazquez
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Dtangard
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Re: 91 Miata diff swap

Post by Dtangard » Thu Feb 17, 2011 4:46 pm

Thanks Troy. A limited slip is definitely on my list of things to get.
Derek
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1995 Miata

CP
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Re: 91 Miata diff swap

Post by CP » Thu Feb 17, 2011 7:19 pm

The average used torsion swap is going for around $1300 these days, if you can find one.
-Cy
99 Spec Miata (SM/STU/STL/EP)
2011, 2013, 2014 NER STU Champion

paultg
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Re: 91 Miata diff swap

Post by paultg » Thu Feb 17, 2011 9:10 pm

I got lucky and bought this with the drive-shaft (not pictured):

Image


for $450 from a local yard. Again, a 4:10 ratio though from a higher mileage '94 model. Search on car-parts.com for auto recyclers, they don't know as much about the desirability and you can probably get a decent 4:30 for under $1000.
Paul G.
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WillM
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Re: 91 Miata diff swap

Post by WillM » Fri Feb 18, 2011 9:21 am

paultg wrote:I got lucky and bought this with the drive-shaft (not pictured):

for $450 from a local yard. Again, a 4:10 ratio though from a higher mileage '94 model. Search on car-parts.com for auto recyclers, they don't know as much about the desirability and you can probably get a decent 4:30 for under $1000.
Wow. I think there may be a Miata part growing out of that pile of rust!
96 Miata #72 SC
PRA 4 :sunny:

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Re: 91 Miata diff swap

Post by paultg » Fri Feb 18, 2011 10:43 pm

WillM wrote:
paultg wrote: Wow. I think there may be a Miata part growing out of that pile of rust!
It's not pretty that's for sure, but the spare parts will all clean up. The car was sitting in 2-feet of snow with no wheels on it. The diff has been in my '91 for over a year now; think I put 15K miles on it so far. :D It beats paying as much as an entire miata parts car for a low mileage no rust one, and installing it in a $3500 car.
Paul G.
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6PAK72
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Re: 91 Miata diff swap

Post by 6PAK72 » Tue Feb 22, 2011 10:41 am

After I solved the problem locally, I found a wrecking yard in Las Vegas that has at least 3 LSD kits from various years, $1300 all parts plus delivery.

Can't recall the name right now, but google "Used Miata parts Las Vegas" and it comes up.

Owner is a SpecMiata racer.
Jeff Baker
Wilton, NH
#42 95 Miata
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79 TR7 V6 in shed

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