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Better base for a swap.. 12a or 13b?

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Old

Dec 7, 2008 | 01:53 AM

#1

maciag

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Joined: Oct 2007

Posts: 3

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From: Pensacola, FL

Better base for a swap.. 12a or 13b?

I absolutely love rotary motors...

What would be a better base to build off of.. 13b or the first gen. 12a?
Motor would most likely not be running n/a during it's life..

Looking to do the swap in a first gen. Miata.

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Old

Dec 7, 2008 | 10:21 AM

#2

Aaron Cake

Engine, Not Motor

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Joined: Feb 2001

Posts: 29,798

Likes: 128

From: London, Ontario, Canada

13B. Parts are easier to find, and there's more displacement. Also they are far more available in turbo form.

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