whats the EASIEST way to install a oil catch can? im talking about not going under the car to disconnect the stock lines?

im thinking about buying the greddy style on ebay and having a quick and simple install. i believe theres like 2 or 3 nipple valves on the can. where do these go for a EASY install that even an idiot can do?

 

easiest way =

disconnect line between PCV valve and intake manifold.

Connect new hose to PCV valve and then route to one of the ports on catchcan. Then connect new hose to other catchcan port and plumb into intake manifold.

 

will running the catch can keep the tb, intake manifold, and head porting clean?

and what about the valve cover to intake arm hose? stays intact like that?

 

yes to the valve cover hose.

and over time, it will get dirty because you are still running a closed loop system.

Going "race spec" you have to vent crankcase pressure into the atmosphere and plug the intake manifold.

I don't like doing this on the street....extra emissions and it just smells bad.... that stuff is mega cancerous.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RagingAngel &raquo;</TD></TR><TR><TD CLASS="quote">easiest way =

disconnect line between PCV valve and intake manifold.

Connect new hose to PCV valve and then route to one of the ports on catchcan. Then connect new hose to other catchcan port and plumb into intake manifold.

</TD></TR></TABLE>

This is what I did.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RagingAngel &raquo;</TD></TR><TR><TD CLASS="quote">easiest way =

disconnect line between PCV valve and intake manifold.

Connect new hose to PCV valve and then route to one of the ports on catchcan. Then connect new hose to other catchcan port and plumb into intake manifold.

</TD></TR></TABLE>

Well worded.

 

I had a custom catch can made up.
Basically 2 in 1. Top section for valve cover, bottom section (sealed) for PCV.

Works a treat, and keeps the scrutineers happy at the racetrack



(ps: ignore the discusting power cable.. its temporary.. )

 

I fitted mine using braided plastic hose but found out that it collapsed through vacuum when it got hot, so switched it to s/s braided hose which cant collapse. I emptied maybe 1/4 inch of oil from the bottom of it after 3k miles.

 

your setup looked weird til i realized its a jdm itr

 

I have a question ... why would you want to install a catch can with an air filter ?? I would think you'd want to use a sealed catch can so the vaccum would persist and thus pull the excess oil into the can. Otherwise, wouldn't the breather let the air pressure out and prevent the oil from flowing into the catch can ??

 

having a filter ontop of the catch can ensures that whatever oil that is caught from the crank case/valve cover is not plumbed back into the intake manifold.

There are by and large two methods on how to run a catchcan.

Closed loop: which is the way that I described and the one you are thinking about.

Open loop: which is the one with the filter ontop of the can, which is generally reserved for offroad/track applications due to emissions and for the very last in performance gain/stability.

 

Got it !! Your reply makes total sense. I still differ on everyone's opinion that an "open loop" makes more horsepower but that's just my opinion. I'll stick to the closed loop setup. I had the valve cover breather opened for a while and I had enough of the oily smell coming from it. Thanks again for the info.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by iperez &raquo;</TD></TR><TR><TD CLASS="quote">Got it !! Your reply makes total sense. I still differ on everyone's opinion that an "open loop" makes more horsepower but that's just my opinion. I'll stick to the closed loop setup. I had the valve cover breather opened for a while and I had enough of the oily smell coming from it. Thanks again for the info.</TD></TR></TABLE>

If the engine is sucking in oil vapor + fresh air (closed loop) VS. 100% fresh air (open loop), how do you figure that one setup would not make better power (albeit minimal) than the other?

I run the open loop setup on my track car and don't seem to have the oily/smokey problem that you're referring to.

 

Well its not a smoke problem at all. However, I do get a nasty smell of oil when running an open loop. As for the performance factor, I guess you said it better, its a minimal thing so I put more weight on the smelly factor