Ok... now... my goal is raising the R/S ratio right??? more specifically i want an R/S ratio of 1.70...
Then i need at least a rod length of 143.65 mm, cause by the R/S formula (Rod Length / Stroke) which means 143.65 / 84.5 = 1.70 R/S...
But i must be aware of piston position.. will fit or not?
So with the stock bottom-end the piston position is this ( Deck Height - Rod Length - Piston Compression Height - [Stroke/2] = Piston Position ) it will be like this:
207.45 - 134 - 27(D15Y2) - 42.25 = 4.2 mm BELOW deck... so the longest rod i can fit is 138.2 mm and this gives m an R/S ratio of 1.63 NOT what i want...
So at least i need a deck height of 212.9 to allow a rod of 143.65 to reach my gola and that means...
212.9 - 143.65 - 27 - 42.25 = 0 AT the deck!!!... and now i need custom piston valve relifes to give me safe piston-to-valve clearance... but that's the minimum deck height i HAVE to do.. it will be more...
That's it
