trying to use my brain on a sunday and failing
im trying to work out how much to skim off a head to get a desired compression ratio. now ive worked out its 2cc's i need to loose. assuming the combustion chamber is circle ive worked it out as 0.05mm but that sounds not enough. my workings
77.8mm bore
77.8 / 2 = 38.9
38.9 * 38.9 = 1513.21
1513.21 * 3.141 = 4752.9926 / 10 = 47.52cc.
47.52 / 20 = 2.376cc ..... close enough
of course this is assuming the are of a circle calculation assume the circle is 1cm/100mm deep does it not?
it'll probably all make sence after sleep