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| RX-7 2nd Gen Specific (1986-92) RX-7 1986-92 Discussion including performance modifications and technical support sections. |
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RCC Addict
Join Date: Mar 2008
Location: Honolulu, Hawaii USA
Posts: 1,813
Rep Power: 19 ![]() |
Check eBay for gaskets...
You'd need to go to a Mazda dealer in Japan to get the Cosmo water pump. This is why we swap the whole waterpump housing + water pump to an FC or FD unit. As for internals... I can't claim the rotors are identical, but Kouki FC turbo or FD rotors are identical in weight and compression ratio. The bearings are not the same - FD rotors bearings are the deepest of all the rotary motor variants. The FD stat gear 9-hole bearings are also better than the 3-window Cosmo ones. Really minor differences, and they can all be swapped over... -Ted |
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