Dope

iTrader: (2)

Yeah, an LS6 PCV setup is pretty much the best solution, but not all of us feel like ripping off our intake manifolds, valley cover, machining the block, etc.. I personally don't have the experience yet. So for me, and others like me, a bandaid is 'good enough' for now. It stopped some oil, that's better than nothing. We'll see how this new location works. Probably next summer I will swap in a LS6 setup.

Also, anyone think the location of the PCV valve affects anything? I have mine in the stock location, and then all the hoses and catchcan AFTER it. I saw Reckless' setup with the PCV right before the intake manifold. Hmm.

Dope

StevieZ

iTrader: (3)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif"> Yeah, an LS6 PCV setup is pretty much the best solution, but not all of us feel like ripping off our intake manifolds, valley cover, machining the block, etc.. I personally don't have the experience yet. So for me, and others like me, a bandaid is 'good enough' for now. It stopped some oil, that's better than nothing. We'll see how this new location works. Probably next summer I will swap in a LS6 setup </font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I did the LS-6 PCV mod. It took about 2 hrs. to do. It works well , but not 100%. I would say it cured 90% of the problem. I still get some oil in the intake. I am going to try a catch can with the LS6 PCV and see how that works.

Phil99TA

Dope
I'd try relocating the PCV valve after the catch can. I'm running the Greddy can with the clear tubing and originally I had the PCV valve before the can. It created so much suction, that the hoses were collapsing. I then relocated the PCV valve right before the intake and it didn't do that anymore. Also seems to be using less oil.

Fulton 1

iTrader: (9)

Dope, FWIW I'm also running the PCV in the stock location (after the catchcan) and I have little to no oil consumption issues. Not sure if there's a correlation...

Dope

iTrader: (2)

Hmmm. Thanks guys. Interesting about the hoses collapsing, both my clear hoses were oval shaped near the catchcan. They looked partially collapsed, I imagine the engine bay heat made them stay that way after removing them. Hmmmmm. I will have to buy a stock PCV and put it right before the inlet to the intake manifold.

Dope

al

Dope, just installed a home made catch can with a fule filter on the tube running to the intake. I have oil in the hose befor the can and in the hose returning to the intake befor the inline fule filter. After the fule filter the tubing has no oil. Just tought I`d add my two cents and also I will be relocating my can behind the battery like you originally did. The can I made was the Forman

ws6-speed

The Greddy can is sweet but there is one problem which I think Dope has encountered. Since the can is empty, a good portion of the air is able to maintain velocity and keep the oil suspended in it. I am not a fabricator, nor do I know one, but I would suggest the following as a design for the catch can.

<img src="http://home.houston.rr.com/cjandruss/Corvette/catchcan.jpg" alt=" - " />

The baffles will cause the air to slow and also allow friction to drop out most (or more) of the oil without having to worry about a filter getting clogged with oil.

It could be the same size as the greddy can and would still be able to hold a significant amount of oil.

Just my 2 cents.

Russ

Fulton 1

iTrader: (9)

I had expected that the GReddy can would have some sort of baffling in it when I got it, but of course it doesn't. After looking at it for a while I'm thinking that it does work without baffling because the inlet and outlet are both mounted at the top of the can. Seems to me that the air could make this 180* turn, but the oil in suspension (being heavier) would drop out and fall into the bottom of the can. Also since the can has a larger volume (like a collector if you will <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> ) it should slow the air and also help drop the oil out of suspension.

Not sure if that really occurs, but that's what I see as the theory in not having baffles.

Dope

iTrader: (2)

I'm not really into adding any filter type stuff. As I previously mentioned in this thread, I was losing ~5psi of oil pressure at idle alone from having 2 fuel filters (and no catch can) inline with my PCV.

The baffling idea seems good. That may be my next step if this catchcan relocation and pcv relocation do not help.

Hopefully by the time this is done I will have a decently effective setup that people can duplicate.

Dope

2001CamaroGuy

iTrader: (6)

I plugged the two ports on the TB and put a breather on the valve cover so it could vent naturally. In the future I may get around to having an electric pump evacuate that crank case but for now this works fine. No more oil going into the intake and it actually made the engine idle better and more responsive.....EMISSIONS BAD!!!! ME NO LIKE EMISSIONS!!!!! <img border="0" alt="[devil]" title="" src="graemlins/gr_devil.gif" />

al

Dope, I posted yesterday about my homemad catch can with the inline filter. I put my foot into it today and then opened the hood. I can tell that the filter will probably need to be replaced soon and it has only been six days since instaling the can. I was thinking about the baffel thing myself today. Sun. I am going to experment with it and make diffrent chambers to ``hopefully`` catch the oil.(somthing kinda like a Flowmaster) You keep us posted and I will post any positive or negitave results I get. I just hope I get time to work on it this weekend, got some ROMCO Super Late Model stock car racing to atend this weekend.

NastySSoo

I ran into the same situation as Dope with a fuel filter. I lost about 5lbs of pressure with the fuel filter inline!!Im anxiously awaiting further posts on this!!

patSS/00

iTrader: (6)

Well here's my .02 - I've got a large homemade catch can (about 8" high by 3" diam.), the intake air goes down a pipe inside to the bottom of the can and then has to travel up to exit from the top, but this was _not_ enough to stop the oil. So I added filtering inside the can, which does stop the oil. I use both open-cell foam filtering (for a shop-vac), and home heat vent dust filters - I cut round pieces to fit inside the can, works really well. These filters to not restrict air flow. A fuel filter on the other hand is not meant to pass air, so that's not a good solution. So IMHO no amount of baffling is going to work, and you don't want to use fuel filters either. Also because the can is big I think it could go 6 months without any attention.

CHRISPY

I have the Foreman Motorsports catchcan and just got back from a day of racing last night.
Didn't use a single DROP of oil through the PCV.
I have mine setup a little bitt differently though.
I have a restrictor inline before the catchcan (vaccum "T" fitting with the bore opened slightly) then I have the catchcan mounted in the old EGR location on the cylinder head. I have the exit tubing on the pipe going up straight for about 3.5-4 inches before turning flat and going into the little inline filter. then I have it plumbed into the manifold.
You can see where a little bit of oil has gotten past the vacuum T but the exit hose of the catchcan and the filter is perfectly clean. No problems with oil behind teh T-body blade, No puff of oil smoke and NO oil consumption with a 200 mile drive roundtrip and a day at the track.. (I would normally burn almost a quart of oil in that circumstance)
I think the way I have the hoses routed helps along with the vacuum T inline before the can to slow down (but not eliminate) the velocity of air through the can.
Chris

Dope

iTrader: (2)

Lil update on this.

I redid the PCV setup with the stock straight PCV AFTER the catchcan. I just changed my oil at the same time, so I will report back on oil loss/catchcan usage in a few hundred miles perhaps.

Here's a pic btw:

<img src="http://fear.net/~dope/camaro/intake/catch_can/new_straight_PCV-full.jpg" alt=" - " />

Looks neater too <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

Dope

wicked 98z

<img src="http://home.houston.rr.com/cjandruss/Corvette/catchcan.jpg" alt=" - " />

Is there a catch can like the one in the drawing? I was thinging about the greaddy also but would it not being baffled make that much of a difference?

ALbert

Viper

iTrader: (6)

Any updates since October?

NataSS Inc

iTrader: (9)

Dope,
OK I am ordering mine today. But I couldnt find the bracket on that site. Anyway you could put a link to the page up?
<img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />

NataSS Inc

iTrader: (9)

Nevermind, I am stupid, I just had to look a little harder. I found it! <img border="0" alt="[bang head]" title="" src="graemlins/gr_banghead.gif" />

NataSS Inc

iTrader: (9)

But I did notice the 9mm and the 15mm, what is the difference between the 2? Is it just one has more capacity than the other? or is it the fitting size?