i'm on the middle of the rebuild procedure of a 13b-rew.is there any topic or link where i should find info about how to add extra dowell pins?

 

I think you'll need to talk to a custom engine builder about this since it is generally done for major hp racing engines. If you are staying within 100 hp of stock
I personally can't see any reason for doing it.

You can contact Bruce1071@aol.com (Bruce Turrentine) in North Carolina but be prepared to pay for his advice since he is a Consultant. He is an absolute expert on rotaries and has built 3 rotors, aircraft engines, etc. His advice is worth every nickle.