Aluminum Dry Sump Tank Questions Options

[gnomefabtech]

Hello All. I'm using one of Ben's aluminum dry sump tanks and am having some issues with the motor "wet-sumping" and flooding out my turbo.

I have a cracking valve in the oil return hose and I'm pretty sure the oil isn't coming in that way, but I'm wondering if it can come in through the scavenge side instead. I don't have a check valve in there because I assumed (yeah I know what happens when you assume) that the outlet was above the oil level and there would be no way for it to return that way.

Is all I need a check valve on the scavenge line? Does Porsche have one there on it's stock dry-sump setup? I'm not running a Porsche engine but it is a dry sump.

Thanks.

[Steve]

@mb911 sorry for the hijack, but with my factory tank over the last 40 years once in a blue moon I would hear gurgling sounds coming from my tank/filter.. I put about 400 miles on my 3.6 install and thought something came loose in the filter / tank. It was pretty noisy, but the motor and oil pressure was fine. I just replaced the filter with another mahle filter and changed the oil. It made the noise a little bit, but the noise went away. The oil lines are the same as before. Can you change the filter without draining the oil or will it make a mess? When it makes that gurgling noise can it hurt the motor? I might just live with it until the next oil change.