Because of the added oil demand for the turbo and lifter lubrication assembly, I didn't want to draw oil from the oil galley for this purpose because it meant a potential pressure drop across from the main journals. This wasn't going to cut it, so I decided to make this block which serves two purposes. One, allowing oil to be drawn without a pressure drop in the block, and two, it allowed me to put a second filter inline. Here is how it works. Oil comes out of the engine block, goes through the oil cooler and into this fixture. It gets filtered, then the Accusump, lifter lubrication system (and upper end oil supply), turbo, oil temp sensor, and engine compartment oil pressure gauge are fed oil. Next the oil goes out and into the second filter on the engine block, then to the bearings.