QUOTE(396 @ Aug 13 2016, 02:16 PM)

Why would one "file" the rod and possibly put a stress area on the rod. If Porsche thought it would provide any benifits, would you think they would move ahead or simply half A.. a solution.
My little brain reminds me that the oil squiters were utilize to cool the back side of the pistons.
Here, the 1990 VW tech bulletin recommending a groove be filed into the connecting rods of all re-man engines:
http://www.ratwell.com/mirror/www.dolphins...m/techbull.htmlThe rods and engine are VW, exactly like what's in your car. The groove directs the oil escaping the rod bearings up onto the bottom side of the piston, for cooling.