You guys hosed the math on the 270 degree crankshaft config. Either Cylinder #2 fires 270 degrees after Cyl #1 or 630 degrees later (270 + 360 or one crankshaft revolution)
With a 270 degree crank parallel twin, there's just isn't anyway to get piston #2 at TDC 180 degrees after piston #1, well, unless you have serious problems.
With a 270 degree crank parallel twin, there's just isn't anyway to get piston #2 at TDC 180 degrees after piston #1, well, unless you have serious problems.