Fred Osborn wrote:

1. Did I read recently that a 12A engine was best suited to peripheral porting ?

Not really. You will get much more power out of a 13B PP. Up to 240 HP
at 6000 RPM. Much more if you want to run it faster. Just divide
the HP numbers you see here on the four rotor PP by two.
 

2. Which models used the 12A ?

First gen RX7 and way back RX2s and R3s.

3. Can the eccentric shaft for a single rotor be machined from the shaft of a two
rotor ?

Yes. PL
 

Just trying to clear up some probable misconceptions and misunderstandings in my
muddled mind.

Fred O.

 
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