Technical Oil/water separators.

martymil

Major General
Sep 6, 2017
3,331
1,910
0
Down Under
Ride
S65 1m
Been looking for a while for a decent on a budget water to air oil separator, whilst there are some on
the market they are overly expensive and complicated.

This has led me to design my own and thus far has worked flawlessly, I will also be incorporating a heater unit to boil off
any moisture and minimise the contents which can be either recirculated back into the sump or drained at oil change time.

I've totally got rid off the PCV system and the gases are recirculated back to the rear inlet and later once i modify my
custom front inlet will have both front and rear turbo scavenging the gases out of the motor.

Here is a quick picture of the setup

20200821_183046.jpg
 

derekgates

Lieutenant
Feb 23, 2018
740
375
0
NW FL
derekgates.us
Ride
2011 335is
Your engine bay continues to amaze me. I love the details you have put into it.

I am excited to hear details on this.


You have your head plugged, correct?
 

derekgates

Lieutenant
Feb 23, 2018
740
375
0
NW FL
derekgates.us
Ride
2011 335is
Had it plugged for over two years

Cool, I am about to do that this weekend.

I am running BMS and RB/Mishimoto setup for oil separation but I'd love to consolidate/improve that setup. Not loving the different sized hoses, I have a little bit of leaks from ??? and the dual canisters aren't fun to empty (nor the space)
 

martymil

Major General
Sep 6, 2017
3,331
1,910
0
Down Under
Ride
S65 1m
Definitely a messy setup and high maintenance.

With the rb turbo drains I have no turbo draining issues so I wanted to try running with no pcv.

I also found my engine with cams and lower comp did not like the vacuum that was drawn by the system and was causing on//off throttle stumbling.

Car now is silky smooth.
 

derekgates

Lieutenant
Feb 23, 2018
740
375
0
NW FL
derekgates.us
Ride
2011 335is
Definitely a messy setup and high maintenance.

With the rb turbo drains I have no turbo draining issues so I wanted to try running with no pcv.

I also found my cams and lower comp did not like the vacuum that was drawn by the system and was causing on//off throttle stumbling.

Car now is silky smooth.

Very interesting to hear about vacuum issues like that... I am curious for more when you can write it up.


You are running low lift Schrick cams? I assume a built block?
 

martymil

Major General
Sep 6, 2017
3,331
1,910
0
Down Under
Ride
S65 1m
I guess the end of year car show judges agree with you and I'm glad people enjoy the effort.

Just representing the platform.

Wait till you see what we are doing on a certain 135 single turbo project when its all done and dusted.

20191228_153753.jpg
 
Last edited:

syn909

Specialist
Jun 27, 2018
64
22
0
Ride
'07 335i
I already have two catch cans, with check valves and head ports plugged. Looking to get a single would be awesome
 

N54TT

Corporal
Jul 21, 2020
136
41
0
Ride
2013 335is
I don't even know what I'm looking for in the picture, but that engine bay is nice!
 

martymil

Major General
Sep 6, 2017
3,331
1,910
0
Down Under
Ride
S65 1m
Here is my custom 4 port oil/water separator I made last year, works extremely well.

i also put a vac gauge on the crankcase to see how much vac is there on the dyno.

You could easily put a sensor there and use a jb4 for logging only and use a aux input to log the vacuum.

This is how I mounted the relief valve, once you get it dial in I turned it upside down so you could not see it.


20200821_183046.jpg


20191227_154115.jpg
 

Reformatt

Specialist
Oct 28, 2019
81
41
0
53
Houston
Ride
2010 335i E92
Someone cough cough needs to bring that banjo fitting X vacuum relief fitting to market....