quote:This is the right way to go IMO. A can to catch any fluids but leaving the PCV system intact to allow any vapors to be evacuated...
Originally posted by Drew99GT: Using one in conjuction with a closed PCV system is the way to go. That way you still have manifold vacuum pulling out crankcase vapors and your not gumming up your intake manifold.
quote:Idonno for sure, but I just don't like doing it. I had a puke-bucket installed, in fact it's still; there for my by-pass... How long does it take to fill up and how big? If it were me I'd just write-off as DoingBusiness
Originally posted by geeeman: OIl catch can...Used in place of a pcv valve or direct atmospheric venting...seems like a better idea than dumping back thru the intake... Can you re-use the oil...would you want to...? Any thoughts...
quote:Heck yea. Plus, you'll gum up the heck out of your compresor housing with the PCV inlet coming in before the compressor, which is the only spost to draw vacuum when under boost. You could just hook up your catchcan inline between the PCV valve and the compressor inlet. I love seeing posts in some forums where people keep their PCV and breather hooked up to the intake manfiold with an aftermarket turbo kit and can't for the life of them figure out why their dipstick shoots out and oil blows everywhere!
Originally posted by Leo: I use a catch can on my SR20DET. I tried to keep the PCV however when I had the other end of the rocker cover vented to atmosphere I just ended up having a big vacuum leak. So no go there... So i gave up, and vent both into a catch can bottle! There is 3 ports on the cam cover, and even one that comes from the block. So 4 ports.. Good stuff The main reason I use it is because I dont want oil dirtying up my intercooler and intake plenum, and blowby gases are no good when on boost.
quote:Pablo, do you only have one crankcase breather tube with a PCV? If so, just rig a fuel filter inline between the PCV and the compressor inlet. An even better rig is to do that with a moroso catch can. Even better is to find any crankcase evacuation fittings on the block and hook up to them, but do not put a K&N breather on your valve cover if you've got any of the fittings hooked up to a vacuum source, or you'll end up with the worlds largest vacuum leak like LEO said.
Originally posted by Pablo: You guys have inspired me!! My turbo has the crank case breather pipe feed in before the turbo....it sure would be nice to have an oil trap in line. I'll have to rig something unique. Good spring project!
quote:I had this setup for a while, till I noticed the one between the valve cover breather & the intake wasn't catching anything. Figuring I had it installed backwards, I turned it around... still nothing. I figure clean air is entering the valve cover from the intake. A filter at this location is not needed; on my B18B anyway. I've got the OEM tubing between the valve cover breather & the intake.
I use two. One between the PCV and the intake manifold, and one between the valve cover breather and the intake. This is a closed loop legal setup and will pass emissions.