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!

 

[954rr]

greddy is just a name they are made amost the same way

 

[Black94DSM]

Yeah the ebay ones will be fine, you're really just buying the name/quality with the name brand stuff.

 

[Dave_Hash]

thanks guys, i thought i would check before wasting the money on a cheap one

 

[v8killar]

You can get a fuel filter at your local napa or autozone for like 3 bucks. check out this link tells you all about it http://www.tgilmore.com/talon/catchcan.html

 

[Gleason]

You can get a fuel filter at your local napa or autozone for like 3 bucks. check out this link tells you all about it http://www.tgilmore.com/talon/catchcan.html

yea, thats the guide I used. Except he listed a wrong [ or changed ] part number for the purolator fuel filter. The correct one as seen in his pictures is actually Purolator # F20011

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[ECLIPSE95]

You can get a fuel filter at your local napa or autozone for like 3 bucks. check out this link tells you all about it http://www.tgilmore.com/talon/catchcan.html

correct me if im wrong, but there is a post around here where a guy had a problem doing that 3 dollar mod? clogging the filter and causing problems??

 

[CanadianTSi]

I've ran the cheapy filter for a few years now, worked fine and never had a problem. I've always changed it every couple months since there so cheap.

 

[Gleason]

correct me if im wrong, but there is a post around here where a guy had a problem doing that 3 dollar mod? clogging the filter and causing problems??

I'll have to look for the post :\ . Hopefully with the clear cased catch can like mine I will be able to see when its starting to gunk up / clog.

If it sucks, I'll definatly make a thread. ahah

We'll see how it goes once I install it when the weather gets nice.

 

[ECLIPSE95]

Im quoting from a DSMwiseman from this thread

http://www.dsmtuners.com/forums/showthread.php?t=186172&highlight=catch+can+mod

This might help on the fuel filter replacement http://www.plymouthlaser.com/fuel.htm

I tried the paper filter on the crankcase breather. I put in in the line from the intake to the rocker cover. It worked fine until the filter got saturated with oil. A that point the filter became a restriction. This happend long before you saw any oil in the bottom of the filter so I removed it.

Steve

thats what I was looking for..I hope this helps you decide

 

[Gleason]

Im quoting from a DSMwiseman from this thread

http://www.dsmtuners.com/forums/showthread.php?t=186172&highlight=catch+can+mod




thats what I was looking for..I hope this helps you decide

aahhh, I might not install it then. maybe I should buy an 'actual' catchcan later on down the line and just run normally for now.

EDIT-> thanks for the thread link btw, was a good read. That tank thing one guy posted looks like a good cheap alternative.

 

[tbTalonES94]

Ok i have a few questions....

1. Couldn't you just put a one way valve in place of the breather valve...to make it a "ventilation" valve? That would cure the problem of the PCV sucking air back through it. It would blow by releasing crank pressure, then seal under vacuum.

2. From what i have read before it is not street friendly to eliminate the PCV valve and run it to a catch can along with the breather valve. People were saying that it helps seal the rings when under vacuum. They say it is fine for a track car but it may cause problems with a daily driven street car. Is this true or am I missing something?

3. Why for so long have people run VTA catch cans when it indeed obviously causes a mis-metered air count. Vendors sell catch cans, people have instructions, etc. about using a VTA catch can from the breather hose. People have also run a hose straight to the ground from the VC with no ill effects? I realize this is stupid because under vacuum you could suck anything up there. Basically I'm just trying to clarify that all these people are wrong and you are right OldMan. I dont doubt you at all, in fact everything you said makes perfect sense and logic, but why are all those people leading us on with lies? Just to see the product? What is the world comming to.

-Trevor

 

[oldman]

1. Couldn't you just put a one way valve in place of the breather valve...to make it a "ventilation" valve? That would cure the problem of the PCV sucking air back through it. It would blow by releasing crank pressure, then seal under vacuum.

Yes you can, Dejon Tools makes one but I still wouldn't do it due to venting efficiency and what I cited above in red. Like I said previously, the best venting route is the stock route. I will take a picture of the catch can I'm using in between the breather and intake pipe when I get home.

2. From what i have read before it is not street friendly to eliminate the PCV valve and run it to a catch can along with the breather valve. People were saying that it helps seal the rings when under vacuum. They say it is fine for a track car but it may cause problems with a daily driven street car. Is this true or am I missing something?

I can't comment on whether or not crankcase vacuum will help seal the rings because I don't know but you will probably not be able to pass emissions depending on who is doing the inspection. It will also make you run rich like I cited above.

3. Why for so long have people run VTA catch cans when it indeed obviously causes a mis-metered air count. Vendors sell catch cans, people have instructions, etc. about using a VTA catch can from the breather hose. People have also run a hose straight to the ground from the VC with no ill effects? I realize this is stupid because under vacuum you could suck anything up there. Basically I'm just trying to clarify that all these people are wrong and you are right OldMan. I dont doubt you at all, in fact everything you said makes perfect sense and logic, but why are all those people leading us on with lies? Just to see the product? What is the world comming to.

make me the bad guy why don't you. I disagree with many accepted DSM wisdoms like maf hacking, running 550s and 2G mas without tuning capability, tapping the BOV line for your MBC, crankcase vetilation routes........etc., the list goes on and on. I strongly believe in doing things right instead of taking short cuts. It is not my place to make ASSumptions or challenge why vendors do the things they do, I'm only here to share what I know.

 

[tbTalonES94]

make me the bad guy why don't you. I disagree with many accepted DSM wisdoms like maf hacking, running 550s and 2G mas without tuning capability, tapping the BOV line for your MBC, crankcase vetilation routes........etc., the list goes on and on. I strongly believe in doing things right instead of taking short cuts. It is not my place to make ASSumptions or challenge why vendors do the things they do, I'm only here to share what I know.

Nah I'm not trying to make you the bad guy. Like I said everything you've said makes perfect logic, it just makes me wonder about vendors. I guess the only real way we would know is if they came on here and defended/stated their position. I'm sure i speak for everyone when I say I appreciate greatly you sharing what you know. If it weren't for people like you, a lot of people would do A LOT of things wrong. I appreciate you going through the trouble and time of showing/explaining to all of us about this issue.

but...one more thing. Is it really going to hurt if we run with a VTA catch can off the breather? You can compensate for it with DSMlink with the airflow adjustments with ease. In fact that's how I run my car right now. I would run the PCV eliminated with a straight fitting, but I kind of understand how it would help seal the rings under vacuum. It's all confusing in the world of DSMs. Why can't we just have speed density

 

[CCR17Darcy]

It's all confusing in the world of DSMs.

Man... you ain't kidding. I am the third owner of my car in my family (brother to brother to brother), and one of the things that is on my to do list is get rid of the breather filter that is putting a nice layer of crud all over the engine, and install a Catch Can. My plan was to just throw a catch can on there and be done with it, but thanks to you guys, I now know that just won't do. So, after scratching my head pleanty while trying to make sense of this thread, I'm simply going to go Valve Cover to catch can, back to the stock hose location.

My main concern after that is cleaning the 3 years of breather filter puke off the engine.... any easy ways to do this?

ugh.....

 

[oldman]

but...one more thing. Is it really going to hurt if we run with a VTA catch can off the breather? You can compensate for it with DSMlink with the airflow adjustments with ease. In fact that's how I run my car right now. I would run the PCV eliminated with a straight fitting, but I kind of understand how it would help seal the rings under vacuum. It's all confusing in the world of DSMs. Why can't we just have speed density

Yes, you can probably tune around it like I mentioned on page one, this is more of an issue with people without tuning and logging capabilities. That said, you will still lose the ability to pull air when boosting under heavy load. I will also share my experience on this issue as well. As you can see on one of my posts in page 1, I was venting both the beather and pcv to the atmosphere, after I posted in this thread, I decided to practice what I preach and re-route both to stock locations. I'm currently running wiseman steve's (THANK YOU STEVE ) eprom specifically compensated for my exact injector flow rates (flow tested at FIC). Prior to rerouting, my low trim was at about 85-92 and my car always sttuters a little just as I start to give throttle at lower gears. My low trim after recirculating is now at 99.2 and my stuttering is gone for the most part.

I appreciate you going through the trouble and time of showing/explaining to all of us about this issue.

You're welcome, that's what I'm here for.

 

[Drifter27_04]

http://cgi.ebay.com/ebaymotors/Silver-Oil-Catch-Can-Tank-Kit-240sx-s13-s14-AE86-neon_W0QQcmdZViewItemQQcategoryZ46098QQitemZ8045119356QQrdZ1

http://cgi.ebay.com/ebaymotors/CARBON-OIL-CATCH-RESERVOIR-CAN-TANK-ECLIPSE-MIRAGE-EVO_W0QQcmdZViewItemQQcategoryZ33556QQitemZ8043143708QQrdZ1#ebayphotohosting

http://cgi.ebay.com/ebaymotors/Pro-1-Oil-Catch-Can-Tank-Eclipse-Turbo-GSX-GST-GS-T_W0QQcmdZViewItemQQcategoryZ46098QQitemZ8044872806QQrdZ1

http://cgi.ebay.com/ebaymotors/OIL-RESERVOIR-CATCH-CAN-TANK-NISSAN-350Z-G35-300ZX_W0QQcmdZViewItemQQcategoryZ46098QQitemZ8045103111QQrdZ1

I am going to purchase one of the following catch cans but first I need to know (really fill bad on asking this) how to hook them up. I understand that one goes the catch can from the valve cover but I am not sure of the other outlets of the catch cans especially with the one carrying the two valve stems on top of the catch cans and one on the bottom of them. I am guess that all catch cans has a drain plug at the bottom of them also. I have a GM blow setup and I only have a small breeather on the valve breather stem now (what a mess and we all know thats not the best thing to do). Can anyone help me out on this matter and give me a brief describtion of how things should be hooked up?

I read on DSMotorsport.com they mention this for there catch can.

"It can be installed by running a hose from the valve cover directly to the catch can, or by utilizing the 2nd inlet, and eliminating the PCV valve"

I understand the first part ;"it can be installed by running a hose from the valve cover directly to the catch can" but as for the second part "utilizing the 2nd inlet, and eliminating the PCV valve". Can anyone explian option two for me please.

Again I am ordering a can today so all information is greatful

Thanks

T

 

[Black94DSM]

You also have a PCV valve that runs to your intake manifold. People take that out and put a straight threw Barb fitting on the Valve cover, then plug the intake manifold. Now they run the New barb fitting where the PCV was, to the catch can.

Here you go.
http://www.roadraceengineering.com/instructions/catchcaninstructions.htm

 

[kspharris]

Yes all catch cans should have a drain plug and the multiple fittings on top are just for connecting more lines. It depends on how many places you need to connect the catch can to. The little glass tube on the side is so that you can see how much oil is in there, so that you know when to drain it. You probably knew that.

 

[Drifter27_04]

Other than what RRE mentions

"By eliminating the PCV valve you can get twice the crankcase ventilation while under boost."

How does this contribute to HP gains/or anything at that matter?

 

[Black94DSM]

It doesnt really contribute to any hp gain, it just keeps the oil out of your intake and combustion chambers.

 

[Drifter27_04]

Ok I understand the two fitting catch cans but what about the three as shown:

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=8031333502&ssPageName=MERC_VI_ReBay_Pr4_PcY_BIN_Stores_IT

What about the oil coming back thru the valve of where the PCV was. I thought the PCV was to shut once under boost keeping it from blowing oil out. This is how I see it as of now. You take the intake fitting out and close it off and take the fitting us it for the intake in place of the PCV. Run a hose from both of the fittings of the valve cover and attach them to the catch can, drain when needed. This is where the third fitting on the catch can in the above link is side tracking me, what is attached to it? I just still maybe lost still but please correct me if my thoughts are way off.

 

[Drifter27_04]

I have read alot on the ventilation of the crankcase but still not found anything written in stone of what is best. I was going with the tabll setup but........

In concerns of all this I plan to tap into my intake tube and run the:

valve cover--->purchased ebay catch can (non vented)--->tapped intake tube

I guess this would be the best way b/c if it was not the cars would have not came out with it routed this way. I plan to throw in a filter of some kind in between the PCV to intake manifold at a later date. The fact of knowing oil making its way through my intake manifold does not set well with me.

oldman

I will take a picture of the catch can I'm using in between the breather and intake pipe when I get home.

Whats the progress on the pictures?

 

[madman]

I have the RRE set-up with the PCV and breather going to the catch can and both the intake manifold and the intake (before the turbo) blocked off and vented to atmosphere.

What I would like to know it, could you take a set-up like Mavisky's and instead of putting a breather filter on top, have that routed back into the intake (before the turbo)? Would you get better crankcase evacuation that way? Just a thought and something I wanted to try for a while.

Since you have everything capped off and the PCV dissabled, I think it would be pointless to run a hose back to the turbo inlet in replace of using the filter. If anything it would slow the ventilation/evacuation since the air would have to travel through the line instead of esacping quickly from the filter.

I have read alot on the ventilation of the crankcase but still not found anything written in stone of what is best. I was going with the tabll setup but........

In concerns of all this I plan to tap into my intake tube and run the:

valve cover--->purchased ebay catch can (non vented)--->tapped intake tube

You probably won't ever find anyone saying that one or the other is the absolute best way to do it.

In your case, unless the PCV is disabled and vented, then it might be best to reroute the system like you said. Although, could you live with a small amount of unmeetered air in you system? If so then leave it the way it is. Sorry I didn't look up you mods before I wrote this.

It all comes down to personal preference and specific car setup. If you have a highly tuned car then you probably don't want to suck in unmeetered air. If it's just a mildly modded and tuned car than it might not affect the A/F that bad and you could run the RRE setup and VTA and not worry about it.


I read the link from Bruce and from what I get out of it, is that the breather and PCV is there to release excess crankcase pressure caused from blowby gasses to help save the seals, sludge build up, oil leakage, etc....... The automotive manufactures can't just release the gasses into the atmosphere so they route them back into the motor to get burned off. Since gasses are routed back in, then they have to compensate for the A/F ratio. The PCV valve is there to help match the vacuum pressure of the intake manifold. So I would assume that if you are not routing the air back into the IM than you don't need the PCV valve.

If you block everything off and vent both the breather and PCV then you could end up running rich, like Bruce said (not necessarily bad). I think this would only affect the car in a closed loop (lo throttle) situation and probably would not be rich enough to hurt the motor. I would base this on the fact that people have been doing this for a long time and if it was hurting the motor than they would stop doing it. In an open loop with a tuning device, I think you would be able to compensate the loss of the gasses by simple tuning.

So in my opinion, running the breather and the PCV (replaced by a fitting) to a catch can and blocking off the IM and turbo inlet would be the best. High mileage or not, you are reducing the pressure and eliminating gasses, that if anything would be better for a high mileage car. You also would reduce the risk of your PCV sticking from old age and not allowing the pressure to vent (BAD). So disable it and forget about it. Your car would run cleaner without all the garbage getting back into the motor.

If you're going to just do the breather side, because you don't want to mess with taking the valve cover off and tapping for a new fitting, then recirculate back to the turbo inlet.

 

[Drifter27_04]

"Madman"

Thanks for the suggestions you had and all the information you given me. If you think I will be best with removing the PCV and replace with a fitting and run both outlets to a catch can and block of the intake manifold I will do. I was going with that route in the first place but after reading several forums it started to confuse me so I just said heck with it and route it back to stock. So I am ordering me a catch can (w/o breather) today and hope to have everything done this weekend.

Whats you thoughts of catch cans off ebay? I see no problem other than I will not be buying the name (Greddy or another manufacture) as your pretty much doing anyways.

 

[madman]

"Madman"

Thanks for the suggestions you had and all the information you given me. If you think I will be best with removing the PCV and replace with a fitting and run both outlets to a catch can and block of the intake manifold I will do. I was going with that route in the first place but after reading several forums it started to confuse me so I just said heck with it and route it back to stock. So I am ordering me a catch can (w/o breather) today and hope to have everything done this weekend.

Whats you thoughts of catch cans off ebay? I see no problem other than I will not be buying the name (Greddy or another manufacture) as your pretty much doing anyways.

If you are going to do both, then it would be better to get a can with a breather. The can needs to vent (you don't want a closed system) and if you got one w/out a breather than you could T the two lines (breather and PCV) together on one side of the can and let the other side vent, but it would be better to get one with a breather.

I don't have experience with ebay catch cans since I bought a used Greddy on ebay for a good price, but there is not a lot you could do to screw up a catch can, so I would think the knock offs would work just fine.