I totally agree with all the comments on NAGTROC. I mentioned on another thread, that i am in awe of this chap, and his knowledge. I passed my city and guilds, as they were then, in motor engineering, and i know a little about engines, but the way this fella talks about ECU control etc, i just havent got a clue what hes on about. His is a special talent, and im surprised he hasnt been asked to work for major manufacturers, even Nissan perhaps. I havent even got a GT-R yet, but just reading Johns threads on what is achievable, gets me all fired up. Keep going Thistle, the community salutes you, regards, SIMON.