SuperCase is an idea used in ferrule's in high pressure fittings. there is information out there, not sure where online.
a friend is trying to get hold of a dvd which should help more on the subject. the basic concept, is it treats the outside of the material, but not the inside. harding a component throughout will make it brittle, the supercase process increases toughness but keeps durability through having a ductile center, the same strength to that of the part before process.
the main idea for this was against corrosion, as 316 rusts badly unless treated (in given situations, we have salt fog testing you'd be surprised how rubbish 316 is at corrosion resistance when put to the test).
Martin, the process will be free i understand replacing parts may not be. i think it would be a SERIOUS pain in the donkey to try and get it apart. most people on here haven't claimed to have gear problems, mainly bearing issues?
if i could find someone to take it apart, and replace the components for me i would like to try this. if i get NO problems i think id be prepared to do the process again and see how far i can push it? brendens supercharged NA would be a good engine to put it to the test. though it would be design for failure.