Re: Yay! A c27 subforum!
I also have a C27! Mine has an outboard that i try to never use. However; last year when i worked at one of the local marinas we had a C27 with a diesel that had this problem after we put a bigger prop on it perhaps a smaller prop would solve your problem. This boat however is the only C27 in the world that drafts 5 feet and has a different rudder (similar to a hunter 28.5 rudder). It was built for someone that worked on Catalina's design team. The new larger prop caused the issue tho.