View Single Post
      04-19-2018, 06:58 PM   #77
m5james
Colonel
m5james's Avatar
United_States
431
Rep
2,062
Posts

Drives: '10 X5M Alpine White on Sakhir
Join Date: Aug 2015
Location: Marysville, WA

iTrader: (0)

Bumping this to see how everyones setup is going, equal amounts of oil collection in each can, changes in diameter size since your original design, etc. I've got my truck torn apart doing downpipes, adjusting wastegates and decided I should do a final on my catch can setup...it's becoming frustratin g quickly.

My temp install:

Drivers side valve cover fed oil into the catch can, then the catch can had vacuum pulling from the "tree" which means is getting vacuum from the drivers side intake manifold, drivers side pre-turbo and that corrugated line that runs from the tree over the turbos and ultimately connects to the passenger side valve cover. It looks deceiving since they share a common mounting point, but that corrugated hosing doesn't connect in anyway to the passenger side pre-turbo vacuum system, it just there for support. The passenger side turbo pulls oil from the passenger side head, hence why I'm guessing most are seeing more oil in their drivers side catch cans...drivers side is getting vacuum from 3 points while the passenger side is getting vacuum from 1 point.

I'm trying to reroute this to make vacuum equal on each side but I don't see a way around it since we can't delete the tree and it's internal check valves without screwing up other things. Heading back into the garage but looking forward to updates while I pull out more hair.
__________________
'10 BMW X5///M - Alpine White on Sakhir Orange - JB4 w/ HCP Stage 2 BEF, NGK 97506 @ .20, SS tubing & BMC filters, gutted cats, AC Forged 312 22's, H&R 2"
'98 BMW 740iL - ///E39 M5 6spd swap, fully built engine (sleeved, P&P, cams), 3.46 LSD, H&R Stage 2/Bilstein HD, Magnaflow 14816's
'97 BMW 328ci - ///E36 M3 clutch & L/W flywheel, Z4///M 18's
Appreciate 1
TTV8M125.00