mjsn1;2006602 said:
Hey guys, I know this is an old thread but i Would like to start it again just to be straight to the point. keep in mind that i am NOT using the stock intake manifold or the stock twins.
first of all, can i just remove the PVC valve and hookup the intake and the exhaust side to the catch can just like the 2jz or do i also have to remove the mesh plate that is bolted to the cover?.
second thing is why do some people drill two holes in the upper back of the covers and connect them to the catch can?.
http://a2.l3-images.myspacecdn.com/images02/26/02de19deda6746b4af9ef360210baa5e/l.jpg
http://cdn.fatlace.com/lacedup/wp-content/uploads/2011/05/IMG_0325-620x362.jpg
Also, do i need to have a third line connected from the catch can to the turbo intake pipe?
http://img130.imageshack.us/img130/5933/dsc08123hs0.jpg
Its just that there are too many setups and not allot of info on the 1jz.
since starting this thread I've learned a lot... so to try and answer you questions I'll just go in order...
1. from my understanding yes, as for this mesh plate I think you are talking about the baffles and I would leave those in or a lot of oil could escape. I plan on threading those exact ports and running AN fittings from them.
2. I have no idea why someone would do this....
3. you can run things three ways:
-a hose to the intake (to draw out crank case pressure)
-an exhaust savaging system to draw out crank case pressure.
-filter set up on the catch can which allows free flowing suction if needed.
things to consider are having baffling for your catch can, some people do steel wool but I wouldn't consider doing so. The reason why is because after a long time they can break down release small parts of the steel wool that can find their way in your engine. For those of you that way say other wise you may not use steel wool as much as I do so I know that this happens (breaking down that is).
ALSO TO CLEAR THINGS UP, NUMBER 2 AND 3 ARE NOT FOR THE CRANK CASE OR VALVE COVERS (IN THE PHOTO ON THE FIRST PAGE.)