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79-85 12A Rx7
79-85-12A Rx7 Cryogenically Treated Parts
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74-85 12A 3mm Atkins Cryogenically Treated Apex Seal Set (ARE12-3-C)
12A Cryogenically Treated Apex Seals. All of our apex seals undergo a heat treatment, these apex seals are taken one step further with a cryogenic treating process which creates a denser, more uniform grain structure that allows heat to be dissipated more quickly and uniformly. This tighter molecular structure also increases strength, wear life, and fatigue life.
See our Cryogenically Treated FAQ
79-85 Rx7 Cryogenically Treated Side Seal Set (1011-23-151A-C)
Twelve Factory OEM Cryogenically Treated 79-85 12A & 13B GSL-SE Mazda Side Seals
See our Cryogenically Treated FAQ
We prefer the side seals Mazda offers which are longer that require hand fitting so that you can attain a tighter fit between side seal and corner seal to allow maximum compression and no blow by. Every rotor is different so it is better to get them longer to custom fit each slot, these are cheaper also than the pre-cut versions.
You will need to remove approximately 0.05" (1.28mm) from each side seal. Slowly remove the material and try fitting them til you get an ideal fit of 0.002" - 0.006" (0.05mm - 0.15mm) with a maximum limit of 0.0157" (0.4mm).
Do not use with lapped side housings.
3mm Rx7 Cryogenically Treated Solid Corner Seal Set (ARE89-C)
(12) Cryogenically Treated 3mm Solid Corner Seals for use on all 12A and 13B 3mm applications.
See our Cryogenically Treated FAQ
This is an excellent upgrade to any engine. These are desirable under high boost or nitrous applications. This was designed by David Atkins and has been patented.
This is a one piece corner seal. These can be used in place of the 2 piece Mazda corner seals with plugs. Can be used with the wire type corner seal spring, the rx8 type corner seal springs, or the 93-95 HP wafer type spring, which is recommended.
Mazda basically copied our design with the Rx8, getting rid of their faulty rubber corner seal plug and opting for a steel one basically making their corner seals solid like these.Do not use these with lapped side housings.
69-11 Cryogenically Treated Metal Oil Control Rings (ARE77-C)
Out of stockSet of 4 inner and 4 outer oil control rings.
See our Cryogenically Treated FAQ
Works with any Mazda rotary engine from 1969-2011.
Note: If you are using these to rebuild an Rx8 renesis engine you may also need a set of Oil Scraper Rings, and Oil Scraper Ring Springs.