Yes you can. If you already have a port on your intake I dont see a reason to block it and put a breather on the T. You need to get a catch can though.CMG wrote:Can I put a breather filter on the left side (and plug intake hole) and have the right side to a catch can and then the block?
I think it's better to put the catch can between the t and the block. At least that's where the stock catch can is.CMG wrote:Both of you guys have a good point. I think I'll leave the right side the way it is and put a catch can on the left side. For now I think I'll put the hose off the can to the intake.
Yeah, I think I'll see if I can find a reason to have the stock catch can on the right, otherwise I'll put it on the left. I definitely wouldn't want oil getting sucked in to the intake.otterman wrote:Well the oil blows from the block to the intake. I don't know if it's bad to have the oil blowing into the T breather on the valve cover or not so I dont know why it has the catch can before that while stock. Maybe because it just fits nice in that area?
So does it matter if the catch can is after the T valve on the exhaust side of the valve cover?ILikeMy240sx wrote:crankcase blow by travels from the block to your intake.
There are two ways that it can travel from the block to your intake.
#1: You are not boosting and part throttle. This will create vacuum in the intake mani (after throttle body) causing the PCV valve to open and bring in the crankcase blow by from the block to the intake manifold.
#2: You are boosting. This closes the PCV valve but there is that T that will see the vacuum created by the turbo inlet. Crankcase blow by will travel from the block to your turbo inlet.
As you can see, in both cases, crankcase blow by travels from the block. This is precisely why they put the oil catch can where it is. Close to the block so that in both scenarios, it is catching the oil in the blow by gas.
By the way, you want to have both PCV and turbo inlet connected otherwise your engine is not getting rid of its crankcase blow by well. You have to account for both no-boost and boost situation and provide some mechanism of vacuum in both cases.
but I heard tiny color matched cone filters add like 20 wheel camel powerILikeMy240sx wrote:^ That's the kind of PCV setup you WANT to avoid.
Like I said in my previous post, when you boost, your PCV valve closes so you need another source of vacuum to scavenge the crank case blow by. Stock system uses the turbo inlet as the source. Turbo inlet always sees vacuum so this would be an ideal place for crank case blow by to go to when you are boosting.natguerrero wrote:thats the way it was when i brought it ! but why should i avoid it ???
I just set mine up this way. I had small amounts of oil firing from the BOV when I had the T routed directly back to the intake pipe. Adding a catch can in between cleared it right up.efrain240sx wrote:Ok what if you have it like this. Off the T, right side to a hose going down to block. Left side to a hose going to a catch can, catch can to a hose going down to intake pipe? keep in mind that I'm trying to keep out as much oil as I can from my intercooler piping.