Hi All,
I have a set of older MAP alloy rods waiting to go in the RGS project engine,
The crank has been balanced to suit.
They do not have the oil hole, and this and the other topic brings up the argument for and against drilling to the fore again.
The subject engine has the roller ts roller bearing and end fed conversion, this conversion stops the leakage from the ts main being flung up into the piston..this leaves the oil escaping from the big ends as the source of bore lube and cooling which should be equally spread between the cylinders,
I have not studied at what angle of the crank the rod and crank oil holes line up?
So wonder where this supposed short squirt of oil is pointed to?
To drill or not to drill that is the question
John