I need to run a oil drain line from the turbo to the oil pan, I have a 1/2 NPT bung welded to the front of the pan and a billet 1/2 NPT adapter on the turbo. Whats the best/easiest way of doing this. AN fittings and hose?
AN fittings and hose are fine. Do not use anything smaller than -10 or your turbo may not drain properly resulting in oil being pushed passed the turbine oil seal (exhaust will smoke). Also keep the drain hose short enough that gravity always is assisting the draining.