Marc Wiese wrote:

 > Can anyone tell me which one is the 93 up and 13B Cosmo

rotor housing?

Do me a favor all you 93 up and Cosmo folks and please measure this
distance for me. This is a double check.

Paul Lamar

Uhh, Paul, only the center one lackes the exhaust port insert for a
turbo.
[Marc Wiese]

That is true. It lacks an insert period. Did you know Mazda only makes one rotor 
housing casting for all years 86 and up replacement uses? It happens to be the 
one on the left. You can tell the 93 and up rotor housing by the knock sensor boss above
the trailing spark plug. I think they just change exhaust inserts.

Paul Lamar
 
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