engine oil catch cans
Thread Starter
Racer
Joined: Oct 2010
Posts: 408
Likes: 1
From: Western Washington
engine oil catch cans
A forum vendor is selling nice looking, well engineered catch cans. I've seen pictures of what these cans are catching and it's not pretty. It makes purchasing & installing said cans, seem like a good idea. My question is...do stock cars, driven moderately, generate all that crud...or is it (the crud) a result of hi-rev, road racing & drag racing applications. I really don't want to spend nearly $200.00 if I don't have too...but I don't want to ingest a bunch of crud either.
Race Director
Joined: Oct 2005
Posts: 14,999
Likes: 200
From: Bay Area Ca.
Not legal in California, meaning they will fail emissions.
Good idea but it is messing with the factory emissions system, a big no no now.
I guess a guy could uninstall the can for testing. Not for me though I have zero mechanical ability and patience.
Good idea but it is messing with the factory emissions system, a big no no now.
I guess a guy could uninstall the can for testing. Not for me though I have zero mechanical ability and patience.
Drifting
Joined: Oct 2006
Posts: 1,340
Likes: 6
From: Redmond WA
There are a number of reports on this forum of people who drive their Corvettes pretty sedately but still have an oily intake.
I think the worst case scenario is high-rpm, low-or-no throttle, like mid-corner using the throttle to balance the handling.
I think the worst case scenario is high-rpm, low-or-no throttle, like mid-corner using the throttle to balance the handling.
Racer
Joined: Jan 2003
Posts: 374
Likes: 0
From: The Woodlands Tx
St. Jude Donor '09
Please read the white paper before deciding on your catch can. Interesting info here. Just a FYI.
http://www.conceptualpolymer.com/new_page_1.htm
http://www.conceptualpolymer.com/new_page_1.htm
Safety Car
Joined: Nov 2011
Posts: 3,714
Likes: 343
From: Norman OK
I seriously doubt you fill emmissions just by having a catch on a car, everyone of them is a pass thru design. If anything you emmissions will prob be a little better with one on the car since some of the oil is going to be removed from the intake charge.
Thread Starter
Racer
Joined: Oct 2010
Posts: 408
Likes: 1
From: Western Washington
Thanks MRIENG, interesting information. I understand that ANY tampering with the OE emission system is a no-no, but we don't have visual inspections on our emissions testing around here (yet). When we do, I don't think a discreet, professional installation would be noticed.
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Race Director
Joined: Dec 2000
Posts: 19,304
Likes: 85
From: San Diego CA
I do this with my CAI as well. It would be nice if there were no visual portion of the smog checks here in CA, but for now at least, most mods that do not adversely affect emissions are also easy to remove and reinstall. Those with LT headers and Vararam intakes need not apply to that EASY button.
Instructor
Joined: Apr 2011
Posts: 166
Likes: 2
I've had my catch can installed for about 500 miles now. I dont track or race my car. I checked the collection for the first time a couple of days ago and had about 1/2 oz in the can. Thats 1/2 oz not oiling up my intake.......
Melting Slicks
Joined: Dec 2006
Posts: 2,694
Likes: 106
Curious to hear from a GS owner who has done this about installation details. Saw one with a MSW (?) can attached to the intake baffle, but again, no installation details. It's got to be with self-tapping screws, and I wouldn't like to do that myself. Seems like that baffle is permanently glued to the intake, so can't remove it and insert a long extension to install/tighten a nylock nut on the can's hardware. Pics would be great. Forgot the forum member because I believed the GSs didn't need a catch can, and didn't bookmarked the thread (can't find it now). Now I'm fully convinced our cars need one
.
Race Director
Joined: Dec 2000
Posts: 19,304
Likes: 85
From: San Diego CA
The best "space" is as far away from engine heat as possible. The higher the oil temperature, the easier it is for droplets to slip past filter media. Keep your catch can in a cool place and you will catch more oil. Here's how one C6 owner mounted his:
http://www.conceptualpolymer.com/C6C...allPhotos.html
http://www.conceptualpolymer.com/C6C...allPhotos.html
Le Mans Master
Joined: May 2011
Posts: 5,022
Likes: 18
From: Tampa FL (formerly Justinjor)
Tech Contributor
St. Jude Donor '11-'12-'13-'14
I like the RX catch can. It has the longest travel from the input to the output of any catch can I've seen and the quick release valve/hose at the bottom is really handy. I swapped my intake manifold out for a ported one a month ago and the catch can had been installed for about 8,000 miles--the old manifold was dry as a bone, as was the throttle body.
Melting Slicks
Joined: Dec 2006
Posts: 2,694
Likes: 106
The best "space" is as far away from engine heat as possible. The higher the oil temperature, the easier it is for droplets to slip past filter media. Keep your catch can in a cool place and you will catch more oil. Here's how one C6 owner mounted his:
http://www.conceptualpolymer.com/C6C...allPhotos.html
http://www.conceptualpolymer.com/C6C...allPhotos.html
. I just emailed them about it. Since nobody with a GS has posted, will go in there one of these days and remove the PCV hose and see what modifications I'd have to do to be able to just slip a fuel hose, and if I'm willing to do them or not. I could cannibalize that hose to add the fittings at the engine end of the hoses, but I'd need to order one to be able to put car back to stock if needed. All depends how much they cost. Good day gang.
Last edited by JCtx; Apr 4, 2012 at 05:57 PM.
Race Director
Joined: Dec 2000
Posts: 19,304
Likes: 85
From: San Diego CA
That is probably the only (real) glass can in the world. Another thing I'd like to mention is that keeping your engine bay cool can not only help to trap blowby oil but also to prolong the life of belts, hoses, circuit boards, batteries, and plastics. The C5 Z06s have openings in their front noses and many coupe and vert owners removed or cored out their fog light panels. Of course, cooler engine bay air can mean cooler intake air - always a good thing. Needless-to-say, if you drive in heavy downpours all the time, this is probably not the best "mod" to do.....
