Bump on this to not make another post,
had a ‘head drain’ leak on me and have the engine out as we speak. Planning on just putting a new freeze plug back in , plug the tapped holes and just be done with that headache.
Now I still want to relieve pressure to allow oil to pass down the blocks returns easier.
I’ve seen catch cans with multiple vents help folks with this issue on this forum.
I’m wanting to make my own.
I have some pictures here of my setup if anyone can help how I should plumb and design the catch can I would deeply appreciate it !
rb25
Oil upgrades:
1.0mm restrictor
n1 pump/billet gears
extended crank collar
extended sump with trap doors/w welded fitting