Alright Lets solve this PCV issue right MEOW!
Alright Lets solve this PCV issue right MEOW! Alright So i have read through 19 different threads and basically gained the knowledge that the stock PCV system sucks for FI. I have heard of people just getting ride of it and
1)running lines underneath the car(oil mess all the time?)
2)AMW catch can and Check valve (which check valve and where to get it?)
3) ls6 PCV system, requires moving manifold
4) Metco breather
5) using system that ATI provides (shoots oil into blower???)
I would make this more general but I know jack about turbos.
I personally ordered the catch can from AMW. What do you think is the best setup and how did you do it. With pictures if you have them. I will get some AMW pictures up soon. But what check valve and where to get it and where do i put it.
1)running lines underneath the car(oil mess all the time?)
2)AMW catch can and Check valve (which check valve and where to get it?)
3) ls6 PCV system, requires moving manifold
4) Metco breather
5) using system that ATI provides (shoots oil into blower???)
I would make this more general but I know jack about turbos.
I personally ordered the catch can from AMW. What do you think is the best setup and how did you do it. With pictures if you have them. I will get some AMW pictures up soon. But what check valve and where to get it and where do i put it. www.Mcmaster.com for the check valve. I bought the 7775k53 and two male 3/8's barb fittings. Installed between the intake and the top of the AMW catch can The other end to the LS6 valley cover works good pulls 15+ most of the time and block the boost during WOT runs. Good luck!
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The best is not running a PVC system.Just vent the valve cover's to the atmosphere and plug all the PVC vacuum's in the intake.I ussually run 3/8 hoses from each valve cover to under the car on boosted cars.No worry of oil in the intake or pressurizing the lower end after that
Originally Posted by Slowhawk
The best is not running a PVC system.Just vent the valve cover's to the atmosphere and plug all the PVC vacuum's in the intake.I ussually run 3/8 hoses from each valve cover to under the car on boosted cars.No worry of oil in the intake or pressurizing the lower end after that
Is there somewhere we could get a detailed explanation to get the big picture? thanks
10 Second Club
Joined: Apr 2002
Posts: 1,755
Likes: 2
From: Cincinnati, Ohio
Why anyone would run no PCV system is beyond me. I guess its just simple to delete it and say you've solved the problem. As many here have shown, with proper design you can keep the PCV system. The benefits are cleaner oil which will maintain superior lubricating abilities for a longer time and you won't have that nasty smell. If you design it to evacuate under boost by sucking out the pressure there are horsepower gains to be had also.
Originally Posted by 2001WS6Vert
Why anyone would run no PCV system is beyond me. I guess its just simple to delete it and say you've solved the problem. As many here have shown, with proper design you can keep the PCV system. The benefits are cleaner oil which will maintain superior lubricating abilities for a longer time and you won't have that nasty smell. If you design it to evacuate under boost by sucking out the pressure there are horsepower gains to be had also.
If it makes people happier you can run the 3/8 line's to the air filter area,that will get rid of all the smell.These motor's were not designed to run FI so the venting is not designed to take out the extra pressure.PVc's work great for getting vapors out of the oil area.When running no PVC you do have to change the oil more.I like 2k miles on oil changes,but would do it anyway's with or without the PVC due to the stress of FI
TECH Apprentice
Joined: Apr 2004
Posts: 315
Likes: 0
I am not sure if I shared this with you guys or not. Some of you may already know about them but I am sure others dont. Take a look at et-performance for a nice set of krank vents to help with case preasure problems related with FI. I have been running a set on my Stealth TT for about a year and they helped the pcv system deal with the extra boost I am running.
Originally Posted by Slowhawk
The best is not running a PVC system.Just vent the valve cover's to the atmosphere and plug all the PVC vacuum's in the intake.I ussually run 3/8 hoses from each valve cover to under the car on boosted cars.No worry of oil in the intake or pressurizing the lower end after that
Pssstt.. its PCV... not PVC... we dont have plastic pipe on our cars
Not trying to be an ***, just a pet peeve 
Launching!
Joined: Dec 2001
Posts: 289
Likes: 0
From: Wallingford, CT
All I have ever used is a single check valve before the PCV valve in order to not put positive pressure into the oil/air system.
Thats it. Almost 4 years and 37,000 miles now.
If you had a PCV valve which could withstand positive pressure, you would not even need that.
Thats it. Almost 4 years and 37,000 miles now.
If you had a PCV valve which could withstand positive pressure, you would not even need that.
I run VC breathers with the LS6 valley cover. Valley cover outlet connected to the turbo inlet hat to provide vaccum at boost. This is Mighty Mouses set up and it works great and very simple. Sometimes people say "what about when driving around town and not making boost" Ok not making boost not making lots of case pressure and have VC vents anyway. Do this mod and then just forget about it. I dont get a smell but i have a new shortblock, I guess it would be worse maybe if your rings were going? Anyways never lost oil with this set up so no worries there either. All this takes is a valley cover swap (very easy) If you dont turn wrenches have whoever installed the FI do it for you.