To add some info on engine modding secrets, can tell you, I don't have a lot of secrets from anybody, more then that on the beginnignof my present here in forum I offer my help for everyone here. More then that I was already on the process to build my motor and in the mean time offer to very respectible moddifier to supply him with my parts at very discounted price for his needs ( but i even didn't get respond). I know all my parts can be mesured and try to copy, materials can be checked for chemical constraction etc, but still don't see any secrets in it and ready to share with everyone. I do have some technological secrets, but it has nothing to do with modding. I can't release technology of piston material manufacturing, but I can supply anybody who needs with ready pistons ( by specs) or blank pistons, ready to be crinding to fit.
But unfortunately nobody needs my help in manufacturing, that is realy fine with me. Beside these couple secrets I can release any possible info on my work with engines and I am doing it so far and happy if somebody will use my expirience and knowolodge.