Hi, I'm new to the rotary world. I just bought my friends 84 rx7 with a 13b (carbed). I'm planning on rebuilding a spare engine that I have and was wondering how far can I go on a port and polish? I've done a lot of port and polishing on regular engines but don't know much about p&ping a rotary. My second question is, where can I find a high compression rotor and how much compression will I be able to run on 91 octane.

Thanks,
Brian

 

Do a search for both, you should find what you need. Some places you can get templates.