also i would check the condition of your rods, if in fact this problem is s/c related it could that some/all of your rods are out-of-round, which would most likely from added stress from the blower... also did you check to make sure enough oil is getting to the crank case? do the bearings appear to be cracked? had metal been removed from the bearings rubbing against the journals?
i think you would be doing everyone on this board a great service by inspecting and determining the cause of your premature bearing wear, and if this is s/c related i think you would be doing an even greater service to those who plan to buy the vortech.
