Hi all, i got this Greddy Oil catch tank, but i don't know what is for???? and is this legal for normal road car?? or yellow sticker... Thanks Anthony
Yellow sticker if it vents to atmosphere, if it's sealed I think it's not as bad, still defectable I believe...
Can use it on any car, the idea of it is to reduce blow by, which is unburnt oil mist & fuel that the engine doesn't burn during combustion. This blow by gets routed back into the intake through a PCV valve to be re burnt, however some of it doesn't get burnt and can gather on the inside of the plenum ect. So with a catch can, you delete the PCV system and run this instead. Can be hid anywhere.
Just know that if it isn't baffled or at the very least stuffed full of steel wool, it practically does nothing to separate the oil from the vapour. That is my experience and a lot of others - at least on the MR2 forums anyway. And it is for any car, but blow-by is generally a bigger issue for Turbo Cars. And if you are catching a lot of oil, then you might have much bigger issues. Ha. Also a search should reveal the PCV location modification, where you relocate the outlets on the cam covers to the highest point which theoretically relieves the issue of lots of blow-by on hard right (?) hand turns.
Yep, can vouch for that! On a real hard right hand corner my zed belches heaps of oil smoke from the exhaust. Poor thing Will do the cam cover mod next time the engine is out.
does any one know why this mod are not legal on normal road?? it's not dangers, just to catch oil, not steeling gov money or some thing...:rofl:
I don't see why it's not legal if it's plumbed back in. Ones that vent to atmosphere with a filter are illegal.
How about this way? When i pulled the engine i looked inside the turbo inlet pipes and could see a small trail of oil coming from the inlet valve cover pipes that ran down into the turbos. im guessing this side is under constant vacuum and drawing oil out of the covers.
Yeah sealed can. what i understand is when the engine is making boost the plenum will pressurize and will actually try and push air back into the valve covers if it leaks past the PCV's. so there's no way oil is entering the plenum through the PCV's under boost. That air plus blow-by then gets pushed out the inlet valve cover pipes into the turbo intake Blow-by is only drawn through the PCV's when off boost and the PCV hose relocation fixes the issue of excess oil being pulled into the plenum when the engine is not making boost on hard right hand corners Thats why ive gone for the catch can in that location Someone correct me if im wrong though
When I was reading this write up of the PCV reroute it has a section on removing the baffle and placing a steel scouring pad to help remove more oil vapour so it doesn't get into the system. Have any of you guys bothered doing it or think it's worthwhile? http://www.twinturbo.net/nissan/300...019112/The-ultimate-PCV-reroute-write-up.html
