1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

12a - 13b

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Old 05-30-08, 02:57 PM
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12a - 13b

Can you put a 13 B in an 85 RX7 GS. I was told it is not possible because of the location of the intake manifold????
Old 05-30-08, 03:01 PM
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Lapping = Fapping

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I put a 13B in my '81 S model. The intake manifold wasn't a problem.
Old 05-30-08, 03:01 PM
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No distributor? No thanks

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Dude, you gotta read. Hit the FAQ at the top of the page and you'll learn a lot. Not be rude, but there's a LOT of info regarding the swap, and a little gets lost everytime it's typed out again.

This thread

https://www.rx7club.com/1st-generation-specific-1979-1985-18/electrical-mechanical-differences-between-s-gs-gsl-gsl-se-759751/

is a current one with a guy considering 12A and 13B options.

The short answer is that it'll fit fine, the swap's pretty easy, it's just a matter of what you do with your carb or fuel injection, and how you plan to mount the engine that are the major concerns. None of these decisions are particularly hard or expensive.
Old 05-30-08, 05:05 PM
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Originally Posted by Crit
Dude, you gotta read. Hit the FAQ at the top of the page and you'll learn a lot. Not be rude, but there's a LOT of info regarding the swap, and a little gets lost everytime it's typed out again.

This thread

https://www.rx7club.com/showthread.php?t=759751

is a current one with a guy considering 12A and 13B options.

The short answer is that it'll fit fine, the swap's pretty easy, it's just a matter of what you do with your carb or fuel injection, and how you plan to mount the engine that are the major concerns. None of these decisions are particularly hard or expensive.
I am a dudette...and just learning about all of these things. Sorry, I will read the faqs!!!
Old 05-30-08, 06:56 PM
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my fb is older than me

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dont read just the faqs, search button is your friend
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