Thread: Hi all. 1985 RX-7 ???'s
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Old 06-03-2007, 10:27 AM
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boost in, apex seals out
  
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Re: Hi all. 1985 RX-7 ???'s
Only the GSL-SE had a 13b for the 1st gens, everything else is a 12a to my knowledge.

I know that in Japan, mazda release a turbocharged 12a so you can go that route, but as with any n/a engine you should do internal upgrades if you plan on running serious boost.
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