[Jim2]

Thanks for input guys, it looks like the writing is on the wall. I have a 930 scavenge pump but was avoiding having to add it.

Roland, my reason to try and go without was to avoid complexity, plumbing, weight etc. Being a 993 platform motor and chassis the installation is more work than the 911/930 installation and I'm at my tolerance limit with this project. Every mod on this project seems to require subsequent mods to adjacent components.

I'll likely go Cole's route and plumb the scavenge return line into the breather cover which will be far more simple than dealing with the oil reservoir again. I need to see if the 993 cam box can accommodate mounting the scavenge pump first, otherwise I'll go electric.