skidlids | 14-Jan-2009 19:39 | Quote: Originally Posted by AK i am so glad we dont do this any more. have a nice day everybody, as we do now :) :) :) sorry if you think i am taking the pi55 but this is something i realy dont miss :smug: just goes to show you have to be careful what you say as blueprinting means putting the engine together properly as not many factory engines are put together to within close tolerance. What nogaro has done is the right thing for the engine as in putting it together properly which some people call blueprinting. im going to butt out now as my 6pworth is just spent. | I know what you mean Alan, SoT rules were always quite easy to comply with but then again it was far more costl than DD. What rules a series does have need to be clear, for that to happen we need to close out gray areas As for blue printing there is the large factory way or the small team way. Large factory, take 1000 of each component and find a pair that best meets the design spec and use them, no modification required Small team way, take the pair of items that you have in your engine and modify one so that it matches the other. Now if you go some where in between and start with several items and get them matched up as best as possible without modification then thats fine by DD rules but if modifications are carried out then rules are being broken. What would be next porting/flowing heads so that both heads flow exactly the same, anybody got the factory figure for the CFM of a 620 cylinder head, I know the rules say no material can be added or removed but surely its just good practice and therefore I should be allowed to do it :p |