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Thread: Confused with oil separator system

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Posts: 31-40 of 57
2008-09-17 23:48:05
#31
Originally Posted by Coheed
This is exactly what I was talking about. Great job with the visual aid. As you can see here, this is the ideal setup. Adding a check valve in-line to the hose that goes from the catch can to the intake pipe will fix the lean idle condition. It may cause a slight hunt for idle occasionally, but it is rare.


More pictures of what your talking about

2008-09-17 23:51:52
#32
Originally Posted by Prodrifter
So in order to run this setup, I would need a catch can with 2 ports on top and one on bottom, correct?


No need for anything but stock. Unless your car didn't have a stock oil separator.




See the port ontop of the oil separator? Also on the bottom there is one port, this goes to the Crankcase, but as you see I Teed it off to use the new system.

Using all OEM parts here, except for hoses and clamps ;-)
Originally Posted by jere
Ok I get what you are talking about. I capped the line on the IM to get rid of that vacuum leak and vented the PVC valve.

I guess the best scenario would be to run the PVC valve to the separator line, and cap off intake manifold port.


Now are you guys talking about the actual PCV valve or the T that goes from the VC to the Intake Piping?

I ran with an open PCV and capped off the Intake Manifold. The car ran like crap. You will need to adjust your idle to be a little higher...

We recently had a discussion about this here. Post 19 is where it all begins
2008-09-18 01:34:55
#33
Just use a VE valve cover ....the havethe seperator built in , so you should be able to just plumb it into the block ....
2008-09-18 02:06:56
#34
the other line goes to intake pipe to turbo!

Brent
2008-09-18 02:46:36
#35
Originally Posted by Vadim


I ran with an open PCV and capped off the Intake Manifold. The car ran like crap. You will need to adjust your idle to be a little higher...

We recently had a discussion about this here. Post 19 is where it all begins


Did you cap the pipe on your intake pipe too? If not that would create a problem for sure
2008-09-18 04:08:07
#36
Originally Posted by nissan
Just use a VE valve cover ....the havethe seperator built in , so you should be able to just plumb it into the block ....


Actually for this case a VE or RR valve cover would be worse. You would be required to use an oil catch can.

Yet the oily blowby will go into the Intake Manifold via Intake.

Originally Posted by jere
Did you cap the pipe on your intake pipe too? If not that would create a problem for sure



Oh I've tried couple things and yes not capping it off will make you suck in quite a bit of unmetered air haha. I'm back to where I started, because it seems to keep the car running best.





2008-09-18 16:08:47
#37
We dynod a mustang last night. We gained 100lb ft of torque, and 40whp on a T76 turbo setup just by taking the oil cap off. That is how much relieving the crankcase pressure helped.
2008-09-18 16:41:03
#38
does anyone have a turbo setup like vadim drew out? im curious to see what it would look like in person.
2008-09-18 19:09:11
#39
Originally Posted by Coheed
We dynod a mustang last night. We gained 100lb ft of torque, and 40whp on a T76 turbo setup just by taking the oil cap off. That is how much relieving the crankcase pressure helped.


That is interesting, was it vented at all before?
2008-09-18 19:12:15
#40
Originally Posted by Joekuh
does anyone have a turbo setup like vadim drew out? im curious to see what it would look like in person.


I have had a few different setups getting to my current one, and I have had close.

It will do a pretty good job like that, there will be some oil but not anything like having no separator..
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