Here we go again....
Google "careful with that hone Eugene"....
Posted here a few times before....
honing is for iron cylinders and very hard piston rings, neither of which we have in our gassers...Chinese rings are hard, but the same thing applies...
Wonder why Frank Bowman's rings work so well ? Softer material that works better with our chrome of NikaSil cylinders....
Our race engine guru checked on getting about 100 unfinished cylinders rough cast in China, unplated...Cost about $ 10-15 dollars each...Then will get sent to a shop in the USA for finish machining and plating, where the bore size can be correctly plated and finished to OUR specs, round and straight within a few ten thousandths..Probably will use Bowman rings...
We WILL have the best and strongest made in USA 6061 aluminum CNC crankcases with rotary or reed valve racing engines...Look for prototype at the AMA show in January in California at the USRA race booth.... The prototype 180 cc engines are making over 40 HP at 9000 rpm turning 31 pitch props...Might try a carb on one, just to see how it would relate to 3D sport engines...
Gonna be fun