My friend and has dad run crank scraper on their Datsuns and both of there's are quite effective.

 

O yea there great . They do help specially in a high performance applications

 

What's a crank scraper?

 

I've had a few setups to control your situation. Trots a filter on that line and the front hole, that's a mess. Best is to have a catch can between that front one and the intake. PVC in the rear with a filter on top. I make catch cans from those aluminum water bottles. Lotta cool looking ones and are cheap.

 

A crank scraper is usually a sheet metal deal in the bottom end that has close tolerances to your crankshafts counter weights, and it keeps excess oil in the pan.. It reduces parasitic drag and its suppose to help make a little more power..

 

I think I'm going to order a k&n pcv breather from LCE