Looking for detail in Miata LSD into 84/85 RX7
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Looking for detail in Miata LSD into 84/85 RX7
There was a posting showing the model year Miata LSD that can be swap into 84/85 RX7. Post had detailed pics showing step by step process; including how much of the Miata LSD housing had to be trim to install into RX7 rear axle (allowed clearance for Watts). Does anyone have link to this old post? Been looking for it in thread search, but can not locate.
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i kind of remember the one you're talking about.
the 94-97 is a 4.10 Torsen
99-02 5 speed is a 4.3 Torsen
99-02 6 speed is a 3.9 Torsen
03-04 is the same ratios, but its some spring loaded thing and not a torsen anymore
the 94-97 is a 4.10 Torsen
99-02 5 speed is a 4.3 Torsen
99-02 6 speed is a 3.9 Torsen
03-04 is the same ratios, but its some spring loaded thing and not a torsen anymore
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I think this will cover any and all questions you have about the LSD interchange between an NA Miata and a FB Rx7 (written from the perspective of taking an Rx7 center section and adding it to the Miata). Adding the archived rebuild thread as well since you'll most likely need that reference doc.
If you have questions about where I got that info and I didn't reference it in the docs, I can find them again. If you are looking to use the Torsen diff from a Miata (94+) it has to be a big bearing rear. Question is why? They are effectively an open diff past the torque ratio. Good for normal day to day driving, but not advantageous over the clutch pack LSD if you want something closer to a spool.
If you have questions about where I got that info and I didn't reference it in the docs, I can find them again. If you are looking to use the Torsen diff from a Miata (94+) it has to be a big bearing rear. Question is why? They are effectively an open diff past the torque ratio. Good for normal day to day driving, but not advantageous over the clutch pack LSD if you want something closer to a spool.
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