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Thoughts on Catch Cans....


Evolved8

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Ok So there are so many threads online that I have searched. I want to see what my local people have done. Please input some advise on a proper catch can setup on a Turbocharged car. How would you do it if you were in my situation....

 

I have a valvecover with 2 -10 an fittings coming off of it. The -10 an off the back is where the factory pcv and line from the Intake manifold was ran. The fitting on the right of the valvecover is where I just had a breather on the old valve cover. Where do you route from there? The moroso can I belive I need only has one An fitting on it..

http://i88.photobucket.com/albums/k198/projectturboex/IMAG0057.jpg

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Do a search on LS1 tech surrounding 'Mike Norris Catch Cans'

 

MOST catch cans out there are just hollow cans with fittings on them, which work to a certain degree. However, there are 2 catch cans that I know of that actually have a 'spongy media' inside that work to slow down the blowby gases and also provide more surface area for the oil droplets to condense.

 

The Mike Norris catch can is ~$100. I forget what the other brand is, but its some japanese company (if you read the threads on ls1 tech you'll find the other name.). I still have mine hooked up inline with a vacuum reference to the manifold to make sure that the vacuum system pulls all the vapor and junk out of my crankcase. For an N/A motor if you don't have vacuum to pull crankcase gasses you will foul your oil pretty quickly. However, with a boosted motor you might get away with not having to pull vacuum.

 

Here is a pic of the can on my car. Pretty much in the middle of the picture located on the front of the driver side cylinder head.

http://i27.photobucket.com/albums/c192/BertoBizkit/RX-7/LS1%20Swap%20into%20the%20RX-7/DSC03544.jpg

 

http://mikenorrismotorsports.com/Billet_PCV_Catch_Cans.html

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Check this out. Its proper and when done correctly, no oil is passed to the turbo through the intake.

 

http://www.dsmtuners.com/forums/custom-fabrication/372279-my-new-crankcase-evactuation-system.html

 

Hell yeah, Paul Volk & crew are awesome. :cool:

 

 

You can even go a touch further to create suction by creating a venturi and Ting the middle for a source of suction. You can find the parts at McMaster.

 

Another idea is to reroute the drain to the oil dpstick slot. The "cyclone seperators" on the E39 BMW M5's had this neat idea.

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Steve, if you want to come over and look at my catch can setup tomorrow night let me know. It's not a turbo setup but you are more than welcome to look at it.

 

Cool man Ill call you.

 

 

 

 

And the other guy, Iam talking about the an line i would run to the turbo intake in wot wouldnt that be to much suction going into the can? i noticed that guy made a fitting with an opening on one side not against the incomming air...

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Buschur makes a really good one that returns the oil down the dipstick tube and works really good in relieving some of the crank case pressure.

In his testing it picked up a few HP, but the main advantage is less stress on the seals. I went through a couple rear mains at 30+psi before having a catch can.

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Steve the one i was going to do is just run the 2 out of my valve covers to a catch can with a filter on it. I wasnt planning on running another line to my intake.

 

http://i18.photobucket.com/albums/b107/2zumeunos/SC300/winter%2009/DSC_0574.jpg

 

the -10an is there by the wiring harness on the valve cover and one on the other side.

 

 

mine will be ran like this one

 

http://i28.photobucket.com/albums/c216/homiehookup2/cars/Picture085b.jpg

 

steve, if you want to run a AN line to the intake your catch can needs 3 an fittings. 2 for the valve cover and 1 for the intake.

Edited by BIGGU
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Here's a writeup I did on another forum.

 

I've been asked many and seen the question asked about installing a catch can on the 7mgte. Here's a quick rundown of how I did it.

 

Ok. Here are a few random pics I took today and an old full shot of my motor before some changes. You can still see the setup, though. It's been on for about 2yrs now.

 

I've numbered some things to help explain. Sorry if the numbers are a bit small. They are in red, though.

 

1 - catch can (Mine has a silica filter to help trap oil, a drain on the bottom or I can unscrew the cylinder from the top and clean/dump. You want something easy to clean out. I never use the drain, I remove the bottome section because I like to clean it completely. I know many "catch cans" don't have this option, however. You don't have to have a filter media. I think it helps. If you buy one without filter media and it can be opened, just buy some **metal sponge scrubbers(see next pic)** from walmart of a grocery store and stuff them in the 'intake' or filter side of the catch. As you'll see in the pics, I've mounted mine in a location that not only has plenty of room, but was located in a good location for how I wanted to run it, but most importantly, it's located in a cooler location. If you do not mount your catch in a cool location, much of the oil will not condense and will pass right though!

 

**Like this or similar:**

http://www.hoeggergoatsupply.com/xcart/files/t_3307_01.jpg

 

2 - two hoses coming from cam covers and then tee'd into one. Some catches have two intake hose nipples, mine does not.

 

3 - return pipe (modified = pipes cut off from bottom and then braised shut.) I wanted to keep a stock looks and not have all this extra rubber hose running everywhere like many people do. This looks clean and stock and many don't even realize what I've done until I show them. (I think it looks obvious, but if you don't know...)

 

4 - return hose. This runs from the catch to the modified pipe which runs to the original, stock location located on the intake accordian hose. ***Addition/Edit*** Throttle body port should be teed in to hose #4. It does not currently show it in the pics as I haven't had time to take any new ones. Pics will changed later.

 

I need to fab up a little bracket for the catch (Right now, there's just the zip tie - which does work fine for now) and rerun the return hose (4) in a more discreet way.

 

Here are the pics, now. I wish the pics and process would have been better documented, but I hadn't originally planned on doing a writeup. Let me know if you have any questions.

 

Christian

 

http://i85.photobucket.com/albums/k58/ImUrOBGYN/Car/IMG_1052.jpg

 

http://i85.photobucket.com/albums/k58/ImUrOBGYN/Car/IMG_1053.jpg

 

http://i85.photobucket.com/albums/k58/ImUrOBGYN/Car/IMG_1054.jpg

 

http://i85.photobucket.com/albums/k58/ImUrOBGYN/Car/IMG_1055.jpg

 

http://i85.photobucket.com/albums/k58/ImUrOBGYN/89ToyotaSupraTurbo.jpg

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from what ive been reading do not put any foam or metal scrubbers inside the catch can. the foam over time will break down and get sucked in along with the metal scrubber is can get sucked into the car. Get a proper catch can that has been baffled. using metal screen or something thats held into place and wont deteriorate.
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Mines got the 2 pcv tubes from the valve cover as well.

 

I only put a catch on the one going to the intake tube right before the turbo, so to catch anything going through it and gunking up the intercooler... the other is free to blow crap into the intake manifold, though I know it would be better to a) cap it and let all go through the one, or b) get another can

 

This is just an AMW one I got from 1slow-z

 

You can see it inserted on the intake to valve cover line. The other line is behind that sticker to the top left, and runs down to the manifold.

 

http://i13.photobucket.com/albums/a299/iwashmycar/c6597e61.jpg

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from what ive been reading do not put any foam or metal scrubbers inside the catch can. the foam over time will break down and get sucked in along with the metal scrubber is can get sucked into the car. Get a proper catch can that has been baffled. using metal screen or something thats held into place and wont deteriorate.

 

This is what I was about to say.

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The one he puts on there should be usable to bolt to the firewall. The one i got for my car is cylindrical and he has a bracket those goes around the back to bolt to a flat surface. I would just take it to IPS and have them weld a piece of aluminum to it to get it to work. Youll be impressed when you get it from Calan. His products are impressive.
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