oil catch can [Merge]

[Rice Burner]

I just ordered my intake and K & N filter from Dejon and now I'm looking for a Catch Can. Does anyone know where I can get one of these? I have looked on some web sites with no luck, with the exception of (i think) Machv for $99.

Any help would be appreciated.

Also does anyone know if any one sells the rubber window trim that goes on the door for the window. You know the one at the top of the main part of the door on the outside. The black coating has pealed off and looks pretty bad.

Thanks in advance!

 

[95Talonized]

what if you just put a breather filter on the PCV and plugged the intake...

 

[No_Skillz]

what if you just put a breather filter on the PCV and plugged the intake...

Whenever you are plugging or adding a hole after the maf, you are changing what the ECU thinks is the correct amount of air, therefore affecting your tune.

 

[95Talonized]

But would it have any major effect on performace. Would it still relieve crankcase pressure

sorry not trying to steal the thread..

 

[DGajre777]

I'm not trying to steal this thread or anything but where is the PCV Valve? Is it on the Intake Manifold or is it on the back of valve cover? Also, this might seem stupid but what does PCV stand for?

PCV - Positive Crankcase Ventilation Valve

And it is here.

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[95Talonized]

so what is the little nipple on the side for?? the hose goes from there to the intake...

 

[blcktalipse]

how can you tell if the valve as gone bad?

 

[kmoore]

Thanks. So you guys are saying to put a hose from the "PCV" Valve to the catch can and plug the one on the intake manifold? Thanks again

 

[No_Skillz]

Thanks. So you guys are saying to put a hose from the "PCV" Valve to the catch can and plug the one on the intake manifold? Thanks again

No, I'm saying just leave it alone.

how can you tell if the valve as gone bad?

... it's bad when it stops working. Change it with every 2-3 oil changes. It's cheap.

so what is the little nipple on the side for?? the hose goes from there to the intake...

That is the valve cover breather. You should put a catchcan between that and the intake (one that does not have a breather on it unless your running a gm maf). That's what I thought this thread was all about but I'm starting to get confused here...

 

[95Talonized]

well i just put a breather filter on that nipple then plugged the intake... would that cause any problems?? i didnt think it would and it hasnt so far but i just want to make sure

 

[No_Skillz]

well i just put a breather filter on that nipple then plugged the intake... would that cause any problems?? i didnt think it would and it hasnt so far but i just want to make sure

Like I've been saying the entire time... you a/f will be slightly off. You wouldn't notice it unless your car was highly tuned and 95% of people really don't care, so it's really up to you.

Personally, I figured "might as well fix it" since it's an easy fix.

 

[antlip]

so since my car was tuned with a breather filter only, putting a catch can with a breather filter on wont change my tune am i correct? but moving the pcv valve will have an effect on my tune. is it good for my motor to have the pcv valve hooked into the intake manfold?

a pcv valve at advance auto is about 4 bucks. its purolator brand.

 

[antlip]

well i just put a breather filter on that nipple then plugged the intake... would that cause any problems?? i didnt think it would and it hasnt so far but i just want to make sure

um when that filter gets soaked with oil it will begin to spray oil in your engine bay. as in my case my filter was fine until i turned the boost up to 15 and 16psi. now i notice the filter is soaked and is starting to drip and it sprayed a tid bit of oil on my hood. so when my catch can comes that will be the first thing i put into it .

 

[No_Skillz]

so since my car was tuned with a breather filter only, putting a catch can with a breather filter on wont change my tune am i correct?

If you are attaching said catch can to the intake, it will affect your tune.

 

[antlip]

If you are attaching said catch can to the intake, it will affect your tune.

no im leaving the intake and pcv valve alone for now. thanks for all the help clearing it up for me


the package for the pcv valve i just bought friday says to change it every 10k miles or as owner manual recomends.

 

[No_Skillz]

Just a side note: when you're installing pcv valve, be careful not to tighten it too much or you will crack your valve cover.

 

[antlip]

one more side note, it goes in on an angle so dont force it to go in straight

 

[SpoolinTalon2]

quick question, what will your car do when the pcv valve has gone bad? leak oil? another question, my boost gauge goes down on idle sometimes, and sometimes doesnt. im looking for a boost leak this weekend, but i couldnt find any last weekend. could it be b/c i put in a home made catch can in, i ran the hose from the pcv valve to the can and have a filter on top of the can and a filter on the intake tube nipple, could this possibly be causing my boost gauge to not go into vacuum at idle at times? after i drive and whatnot it goes down and after i stop and park it it stays down, until i turn the car off. thanks

 

[daren_p]

how can you tell if the valve as gone bad?

Take the pcv valve out and blow through both ends, you should be able to easily blow through one way and not be able to blow through the other. If you can or it leaks, time for a new one. These are best to get from Mitsu as you'll have a hard time finding an aftermarket one that seals properly.

 

[turbo8765]

The stock route gives the best pressure relief on or off boost, catch can simply gives you a clean intake tract but everything comes with a price.

Hard to say for sure... A properly functioning PCV valve will be closed under boost. The crankase will be vented by the single port on the side of the valve cover. The benefit with the stock setup is the the crankcase vent is attached to the intake and therefore exposed to vacuum.

By gutting the PCV and connecting it to a catch can, the crankcase is vented by TWO ports under boost. The standard crankcase breather attached to the intake, and the gutted PCV to the catchcan. I suppose the ideal setup would be to gut the PCV, attach that to the intake, and leave the stock breather attached to the intake as well. That way you have two vents at ALL times, but you're intake track will not be clean.

The best compromise, IMHO, is to gut the PCV and send both the stock crankcase breather and the gutted PCV to the cathcan. Clean intake tract, and decent ventilation under boost. What you lose in this scenario is having the crankcase vent AND the PCV exposed to vacuum when not under boost. So, off boost, the stock setup is clearly better than mine. On boost, when I need the ventilation most, I believe my setup is better. Don't know for sure, the question comes down to whether two ports open to atmosphere are better than one port to vacuum. You may be correct....

 

[oldman]

Whats the progress on the pictures?

Sorry about that.

 

[oldman]

http://www.dsmtuners.com/forums/showthread.php?t=209438

 

[madman]

I have both lines t-off into one side of the Greddy and the other side, the hose just vents towards the ground.

I've had it running this way for about 500 miles with my 50trim at 20psi and so far so good.

 

[MrBoxx]

Is there anything inherently wrong with THIS type of "catch-can"? It's what I'm using and what I recommend to people who use just a breather filter on the VC nipple.

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[madman]

Working on my pic....to big...


^ That looks fine to me.

It's pretty much a stock setup just using a inline/enclosed filter which should keep most of the oil from getting back to the intake and keep the engine bay clean.

 

[madman]

2nd try

I need to change to black zip ties