I thought this was pretty clever: http://www.youtube.com/watch?v=7wuNuuEoN7Y Similar to the design that subaru incorporates into their engines.
:rofl: the 1.6L and 1.8L miata engines have the grooves on the con rods from the factory, they also have nozzles at the bottom of the cylinder bores to spray oil up the cylinder walls and onto the bottom of the pistons and wrist pins. :bowdown: Mazda.
the stock sti rods have that notch from the factory except it is in the center on each side and not offset
interesting but i wont be leaving the mill run when i pull and insert parts though small - no coolant and what about deburring