I know this has been beaten up, but the advice I am looking for was not obtained by using the search button.

I am currently in the process of doing a built engine with a KB and I will be running somewhere around 16#'s of boost. I will also have CNC Ported Stage II heads and Crower Stage II cams. My question is this....

Which is a better set-up to go with?

1) Delete the PCV and run a breather on each valve cover.

2) Get an L&S Oil Separator.

I have read/heard that deleting the PCV is a good thing because the oil fumes that are sucked into the PCV actually hurt the octane rating of the fuel.

I am just trying to get the straight scoop on this to clear up all the crap I have heard/read.

 

ttt

 

We run the Metco Breather on the Chicken L and so far so good, no oil in the Supercharger. Been about a year now.

You will get tons of different opinions on this subject though.

Hope this helps, Andy@Chickenears

 

Remember we have "2" oil sucking probs

The Lightning Enterprise PCV Fix will take care of one
and the Breather will "HELP" with the other
Together they will keep your intercooler SPOTLESS, and only allow a very very small amount of oil to get through.
Anyway you look at it, it's 9 thousand times better than the stock set up

Before you ask the Lightning Enterprise PCV Fix is an actual working PCV Valve for the Pass Side (NO OURS DOES NOT WORK, FORD PUT IT THERE FOR SHOW I GUESS ?????) and another check valve for the Drivers side.
Takes @ 1 minute to install

http://lightning-enterprise.com/pcv.html

 

one common thing I have noticed from seeing these trucks in the shop is that guys with oil seperators or any other system that completley stops the oil going into the plenum, blower, tb, etc... they are more prone to have scuffed rotor packs. This system was designed by ford for a reason. You do want a little oil through there. Id just do the oil breather. My truck with 96,000 miles on it doesnt have anything to stop the oil but when I changed my throttle body it looked ok, I saw some oil but not enough to worry about. Also when my motor was pulled at 84K the rotors were mint

JimIII

 

I thought Ford designed the system to burn oil vapors for smog reasons like any other vehicle with a PCV. I can't imagine they intended for oil to go into the intake. I figure the oil in the intake is just a by-product of a S/C vehicle with a PCV. Why would I want a little oil in there? By saying breather, do you mean just the breather on the oil filler neck?

 

When I say breather i do mean the breather cap that is put on the oil filler neck. Ford designed this system just like you said for emissions. But you want some passing threw the blower to help lubricate the rotor packs. Yes it does cake up on the intake, Im not sure as to what affect it will have on the octane rating. But what Im getting at here is that the trucks that i have seen in our shop with the seperators, when we took off the blower for either replacment or building the motor, or whatever reason. I noticed that they all, or most of them all had scuffed rotors. I have seen more trucks with that issue with the seperator than with the breather or nothing at all. Some trucks have more of a consumption issue than others. You may have to do whatever is necessary. But from all the trucks Ive seen pass threw here this is what I gathered.


JimIII

 

I was having the oil problem. I run about 15 psi on the eaton and was getting much more oil than a stock one would see. I took it apart and cleaned it, inspected the rotors and intercooler. A couple months later I put on the breathers on all 3 locations....yep, you guessed it, no oil problem. Last week I took it apart again to send to Steig for a port. When I took the SC off I noticed the rotors were flaking. I found the remains of them in the intercooler. I am now having the rotors striped and that will no longer be a problem...I also ordered the pcv kit from Lightning enterprise as mentioned above....Hope this helps.

 

Rob, I put that on my truck and it made the problem worse.

 

If you do a "search" on here you'll find a lot of interesting info on PCV systems and all the things guys have tried over the past 5 years to combat the "oil in the intake" problem. I was amazed after about 1500 miles on my new 01L how crudded up the throttle body was from oil - I never saw anything quite like it at 1500 miles. Ford didn't guess when they chose that "valve" in the PCV system that doesn't fully close - I'm sure they had definite reasons for it - and a lot of it had to do with longevity and ensuring a good movement of air throughout the crankcase at both boost and non boost situations. If you do a "search" you'll find that just about every "fix" guys have tried over the years - work for some, don't for others - and you can make a decision basad upon an accumulation of experiences by guys who wrestled with this for years. Oddly enough, you'll find some guys don't seem to have the problem at all - and some "chose" to just let it occur. FYI: currently, according to guys who have posted on here and at NLOC for the past year there seems to be only about one "fix" that most seem to think is the best overall application - and this is from many guys who have tried most other "fixs."

 

I got rid of the compressor style oil catch for the one below. I know it collects oil when the small one didn't. Somehow with the smaller one, the oil just went right through.

http://www.accmachtech.com/pcvcatchcans.htm

 

so what is the one fix that most seem to think is the best overall?

 

Same here. It is utterly worthless - looking to get the L&S separator since most people say it works great.

 

XNEWYORKER:

The "L & S" Seperator seems to be the one fix mostly favored at the moment, but I'm not trying to market it. So if you want to know how it works you can do a search on here - plenty of info from the manufacturer and others and you can compare this with what others have done and make an "informed decision".

 

I checked it out and it looks/sounds like a pretty good unit. I am sure that it still allows some oil into the intake though. Anyone else out there have any experience with this unit?