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12a or 13b

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Old 11-16-04, 02:46 AM
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Question 12a or 13b
is the 12a a good engine 2 go wit or the 13b people say stay wit the 12a and turbo charge it is that true
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Old 11-16-04, 08:44 AM
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it all depends what its going in? What will it be going in, and how much power do you want out of it?
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Old 11-16-04, 10:47 AM
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I concur
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Old 11-16-04, 11:04 AM
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No distributor? No thanks

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12A parts are WAY cheaper, by the way. A gasket kit will run 1/3 the cost of a NA 13B, just because owners of newer cars will pay more money. Besides, you can find used 12A parts everywhere.
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Old 11-16-04, 11:07 AM
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with both running the same port configuration, they each make pretty much the same amount of hp but u'll get more torque with the 13b.
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Old 11-16-04, 08:28 PM
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in a 85 rx7 5spd i need more speed bad everybody stepin 2 me 2 race and my motor can take it
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Old 11-16-04, 08:35 PM
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No distributor? No thanks

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Port it. If unhappy, port it more. If you get into the water jacket, just rinse and repeat.
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Old 11-16-04, 10:49 PM
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well buy stuff for your car then.
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Old 11-18-04, 12:38 AM
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12A MFR P-Port!...or find an import 12A turbo motor, add a stand-alone fuel computer, decent size turbo and you'll have the time of your life.
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Old 11-18-04, 06:38 AM
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Originally Posted by Crit
Port it. If unhappy, port it more. If you get into the water jacket, just rinse and repeat.
Haha!Now there is a statement i like! :-)
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