Ive read article after article for the past couple days. had a few questions that i was confused about.

1) On a NA setup which is the correct and/or most beneficial way to install?
http://img.photobucket.com/alb...k.jpg

or
http://www.theoldone.com/sc/ty...m.jpg

2) Retaining the stock pcv valve has any one ran into any problems with just ventilating into the atmosphere and manually draining? how often do you find yourself draining it? and does any one have pics or diagrams to show their plumbing setup that drains back into the block?

3) In a few of the articles i read about the length of the tubing being an issue any one have more info on this?

4) how do the cheaper cans like the Mfactory and others similar work out? In a few articles there were a lot of criticism coming from owners of the more expensive cans like the T1R and others in that price area. Is that just down talking the cheaper product or do those cans not perform very well?

thanks

 

I just installed a small air compressor filter as a catch can as other people have, and the 5th gen preludes have alot of oil runs through there.

If it is just ventilated to the atmosphere there is no vacuum sucking the gases out of the block, the vacuum is needed for good operation. as far as long tubing is concerned i am not to sure, long tubing would take more volume of air to fill so it may affect throttle response, but i am not sure.

 

What kind of catch can were u lookin to get in particular?

 

To keep it simple I'd leave the pcv valve where it is and install the catch can after it (like in the first link). I haven't had any problems with that setup on my H23. I have a breather on the line that normally goes from the intake tube to the valve cover, and check that regularly for oil contamination. Vast majority goes from the pcv to the catch can but I don't lose a lot. I don't lose much oil though. Empty it once every 3-4 months maybe with maybe a couple ounces in there.

 

the one im looking at is the mfactory (http://www.teammfactory.com/pr...20Can) ive read one guy put a breather filter on it with a 2 can setup and also was told to stuff it with steel wool before install. and if needed you could add a baffle inside.

yeild do you have a pic of yours? do u just have the pcv normal and a breather filter inline along with a catch can b4 the intake? thats what im planning is pcv-> catch can -> inline breather filter -> manifold

anyone have any info on the tubing length question? just curious cause i have a full bay (nothing removed) and finding a spot will be fun.

thanks


Modified by M2B4 at 10:17 PM 10/14/2007

 

Here's my ghetto fab setup:


THere's no breather on the line from the pcv to the IM. The breather is where the line used to connect to the intake tube (can just see it behind the neuspeed bar).

 

ic i was thinking about that same idea except putting the breather inbetween can and intake mani

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by M2B4 &raquo;</TD></TR><TR><TD CLASS="quote">ic i was thinking about that same idea except putting the breather inbetween can and intake mani</TD></TR></TABLE>

Then you would have no vacuum.....

 

haha ok im confused. so what makes the difference in putting the breather b4 or after the can?
pcv-&gt; filter-&gt; can-&gt; IM
or
pcv-&gt; can-&gt; filter-&gt; IM

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by M2B4 &raquo;</TD></TR><TR><TD CLASS="quote">haha ok im confused. so what makes the difference in putting the breather b4 or after the can?
pcv-&gt; filter-&gt; can-&gt; IM
or
pcv-&gt; can-&gt; filter-&gt; IM</TD></TR></TABLE>

OK, on a basic NA engine where you just want to filter out the oil from the air coming from the PCV system (to keep it from getting burned off and coating the intake manifold) and releive the crankcase pressure you just put the can inline on the PCV hose. PCV valve -&gt; can -&gt; IM. The breather filter could go on the valve cover intake nipple or you can leave the hose hooked up to the intake tube, either it provides fresh air to the crankcase.

On a crazy NA build or a boosted engine where you need to be able to let off a lot more pressure than stock you have a different setup with the breathers on the cans and the extra valve cover vent lines and such...

Well, that probably makes it more confusing, but the best thing you can do the understand it is look for a threads the forced induction forum by 'dasher' about catch cans. Very in-depth

Here's one of them :https://honda-tech.com/zerothread?id=697498

 

ic lol i was just gunna put can inline from pcv to im but thought it would help putting a breather by getting the left over blow by vapors that made it through the can. should i just opt out with the filter all together?

and dashers threads are awesome i read through 1 indepth but it was a FI one.