As usual I took the pic then realized I had it bassackwards, there is a check valve,after reversing it actually fit much better than the pic shows.I would like to take credit for this money saving mod($16.63)but I found it on three different sites.Mustang,Ls1, and Corvette forum and it's been old news since 2007. The polycarbonate tank is rated for 300*f to -30*f.No one reported any problems after extensive use.The bottom drain is spring loaded closed and appears fairly simple to drain.Forced induction had much more oil than normally aspirated engines.Mine with 40 1/8th mile passes in the last three months only had at most a tablespoon of oil, when I swapped throttle bodies last week.
If it works as intended that thing will be full in 1000 miles or less, if it isn't, than the oil is simply bypassing it to the PCV.It catches any oil that leaves the PCV,it wasn't an original idea, the C5corvette Ls1 guys were using the same system at least 5 years ago.Kobalt calls it a liquid/air separator and it works with oil just as well as water.The point being no oil is getting into my intake manifold.Which I thought was the purpose all along.You don't like how it looks, cant see it with the engine cover or the hood closed.
You are basing your assumptions on the BT catchcan that has the catchcan mounted 2-3" below the level of the PCV.Part of my education was at GMI(general motors institute) now known as the Kettering Institute, so I have some background in automotive engineering.For some reason not all PCV equipped engines allow oil to enter the intake manifold.My 98 C5 allowed none in 35k miles,other C5s allowed a teaspoon or so between oil changes.The fancy high dollar catchcans have by design allowed gravity into their equation.They are no longer catchcans but rather gravity operated crankcase oil removers.Long before there was a PCV it was common practice to add 4oz of oil to a tankful of gasoline. It was a light oil and its main purpose was to lubricate the valve stem seals. I don't know if thats anymore true than having a teaspoon of oil which in most cases never leaves the intake manifold, could reduce 3-5 HP by just accumilating there. I tend to operate on the premise of PT Barnum. "There is a sucker born every minute". I havent been active on Corvetteforum.com or Ls1tech.com since 2006, I sold my C5 in Jan 2007.The Kobalt liquid air separator wasn't availalable then, but the Campbell Hausfeld was, there were some of them in use on C5's that had some oil leakage problems.In closing do not insult my intelligence with dyno numbers put out by the same people who are profiting by selling them.If Dodge hasn't seen fit to sell them or make changes in the design of their system, then there is no serious problem with a small amount of oil in the intake manifold.