Clean side PCV and Aftermarket Intakes

[polskifacet]

Wanted to throw this out there. Installing larger filter = less restriction which in turn = less vacuum on the clean side of the pcv system. The clean side is what provides the crankcase a slight vacuum while in boost.

So whats better, getting oil sucked into your intake piping or not providing this slight vacuum? UPR tries to accommodate this with a 5 ft hose from the intake pipe to their catch can but the issue of a less restrictive filter still remains.

 

[ajpturbo]

I think it’s grasping at straws and you will be fine

 

[polskifacet]

I think it’s grasping at straws and you will be fine

I agree it's out there. Reason I made the correlation is because I started putting my aftermarket parts back on and haven't noticed any difference in exhaust smell until I put the Air Raid on (maybe). Just for giggles I'm going to put the catch can on the clean side and see if it catches significant amounts of oil.

 

[polskifacet]

Found this from UPR. Looks like it would fit the location of the stock clean side nipple.

F150 Clean Side Seperator

Same thread/fitting as pcv

 

[8nutz8]

Found this from UPR. Looks like it would fit the location of the stock clean side nipple.

F150 Clean Side Seperator

Same thread/fitting as pcv

Rather than pay $100 for that i would just get the quick connect fitting and run a hose from the CSS to the stock nipple that way. i pulled several from a junk yard at one point. that's what i opted to do when my RX CSS was leaking except i ran a hose to a nipple in my stock air box. worked like a charm.

even so, will moving the clean side air supply fix the lack of vacuum from the bigger filter?




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[polskifacet]

I'm curious if the clean side needs the slight vacuum from the suction of the turbo or it simply needs fresh air. All info I could find says that the turbo actually sucks out the crank case gas while boosting.

 

[ZSHO]

https://www.ecoboostperformanceforum.com/index.php/topic,4419.0.html .Z

 

[polskifacet]

Thanks Z. My original idea was to cut the clean side line and put in a check valve so it cant burp out oil, only fresh air in. I have a CFM breather which gives something like a 1.5" hole for any positive pressure to escape. Think I should just execute this original plan.

 

[ZSHO]

Thanks Z. My original idea was to cut the clean side line and put in a check valve so it cant burp out oil, only fresh air in. I have a CFM breather which gives something like a 1.5" hole for any positive pressure to escape. Think I should just execute this original plan.

NP buddy! keep us updated on any findings!  Z 

 

[ZSHO]

Found this from UPR. Looks like it would fit the location of the stock clean side nipple.

F150 Clean Side Seperator

Same thread/fitting as pcv

Rather than pay $100 for that i would just get the quick connect fitting and run a hose from the CSS to the stock nipple that way. i pulled several from a junk yard at one point. that's what i opted to do when my RX CSS was leaking except i ran a hose to a nipple in my stock air box. worked like a charm.

even so, will moving the clean side air supply fix the lack of vacuum from the bigger filter?




Sent from my iPhone using Tapatalk

I'm liking the overall custom setup CSB! Z  :thumb:

 

[8nutz8]

Thanks Z! I'm actually really happy with the little CSS setup too. I get to keep my oem oil cap on which is nice. I have a check valve and a small amount of filter media after the barb on the quick connect fitting and there's really never oil that gets passed through the lines.
If others are looking for a CSS solution i highly suggest getting the fittings and fabbing something like this up. Cheap/easy and effective.
Sorry for the derail . . . back to your regularly scheduled thread!

 

[polskifacet]

Thanks for all the input guys. To keep as much of the original design as possible I pulled the trigger on a second catch can off Ebay.

 

[ajpturbo]

SHOBro what did that front hose look like before you modified it and why did you do that? Been a while but I thought that front valve cover hose went to the airbox anyway? NO?

 

[polskifacet]

SHOBro what did that front hose look like before you modified it and why did you do that? Been a while but I thought that front valve cover hose went to the airbox anyway? NO?

It goes to the front turbo intake piping stock, he plumbed it to the filter box.

 

[ajpturbo]

SHOBro what did that front hose look like before you modified it and why did you do that? Been a while but I thought that front valve cover hose went to the airbox anyway? NO?

It goes to the front turbo intake piping stock, he plumbed it to the filter box.

Isn't that essentially the same thing?

 

[polskifacet]

I assume he was hoping that any oil would stay in the filter box instead of going into the turbo inlet/ic

 

[8nutz8]

SHOBro what did that front hose look like before you modified it and why did you do that? Been a while but I thought that front valve cover hose went to the airbox anyway? NO?

It goes to the front turbo intake piping stock, he plumbed it to the filter box.

Isn't that essentially the same thing?

I originally did it because my RX CSS had a leaky seal and was leaking bits of oil on the valve cover. I've really come to prefer it to an actual separator unit though.

it's pretty much the same thing but a slightly different way to route it. I'm letting fresh air into the oem location through the nipple on the valve cover rather than the aftermarket option of using the clean side separator. looks more stock without a huge separator unit sitting on your oil neck. I really prefer to have the stock oil cap so i don't have to remove the CSS w/air tube attached to add/change oil. Also i really feel the oil neck gets a lot of unnecessary oil exposure. Sure it looks like you're catching a lot but that's oil that could be in the engine doing its job.

whereas the nipple stays pretty clean so there's less to filter to begin with.
I never get any oil in those lines so filter stays dry as a bone.
When you install a catch can it uses the nipple on the front turbo pipe for vacuum for the dirty side catch can and that's why the inlet source for fresh air is routed to the air box.

 

[polskifacet]

Wow Dual catch can is a nightmare. There is NO place to mount it. I'm going to have to give in and buy the CSS, at least is only $100 and maybe someone will buy my oil cap breather.

 

[ZSHO]

Wow Dual catch can is a nightmare. There is NO place to mount it. I'm going to have to give in and buy the CSS, at least is only $100 and maybe someone will buy my oil cap breather.

Front bumper location?
Feel free to post the oil cap breather in the dedicated for "Sale Section"!  Z 
https://www.ecoboostperformanceforum.com/index.php/board,30.0.html

 

[8nutz8]

Wow Dual catch can is a nightmare. There is NO place to mount it. I'm going to have to give in and buy the CSS, at least is only $100 and maybe someone will buy my oil cap breather.

I'm sure you have your reasons but why not keep $100 in your pocket and do something like i've done with utilizing the stock nipple on the front valve cover? It's just as functional if not more-so than a CSS.