building a catch can
Thread Starter
Burning Brakes
Joined: Jul 2009
Posts: 1,000
Likes: 2
From: Oklahoma
building a catch can
I am building a catch can out of aluminum. The dimensions will be a square 2 1/2 X 4" tall. Does this sound big enough? What should the capacity be for a catch can? Any info from the gurus would be very appreciated.
Tech Contributor
Joined: Jan 2007
Posts: 19,392
Likes: 1,135
From: Dyer, IN
First off, you do know there are many vendors that sell catch cans....and they are not that expensive, right? The dimensions you posted are small. I guess if you want to reinvent the wheel (or tube in this case), you could just calculate the volume from a aftermarket catch can.........and go from there.
Former Vendor
Joined: Apr 2006
Posts: 2,470
Likes: 2
From: Portland OR
St. Jude Donor '10-'11-'12
1 quart would be good, the inside should have machining done to it as well to trap the oil.
We were going to have Wilson build catch cans for us, might still but to be honest there are a million of them out there.
Knowing how it all worksd is 88% of the battle to keeping the oil out of the intake. A lot of the times it's reversion of the clean air in at hi rpms. An easy fix by re-routing the hose.
We were going to have Wilson build catch cans for us, might still but to be honest there are a million of them out there.
Knowing how it all worksd is 88% of the battle to keeping the oil out of the intake. A lot of the times it's reversion of the clean air in at hi rpms. An easy fix by re-routing the hose.
Melting Slicks
Joined: Apr 2006
Posts: 2,151
Likes: 20
I've built my own and it works very well. I discovered that the aftermarket dual ones I had on there actually were letting oil by (they weren't catching much). Mine has a very simple baffle inside and it works. A 20 min session on a road course picks up about 1/4 qt. or more of oil. If you search my username on this forum you can find all my posts about it.
Drifting
Joined: Feb 2007
Posts: 1,993
Likes: 7
From: LaPine Oregon
oil catch can............
I use a CCA/ Mike Norris catch can (2.5"x 10.0" and holds 10oz, my guess) 
that I modify by adding a Binks 86-617 coalescing filterhttp://www.norriswiener.com/pdf/clean-air-elements.pdf to the inside of the can. Of course I don't mount it anywhere near the engine ( heat source) but down low with a bracket off the radiator support.
that I modify by adding a Binks 86-617 coalescing filterhttp://www.norriswiener.com/pdf/clean-air-elements.pdf to the inside of the can. Of course I don't mount it anywhere near the engine ( heat source) but down low with a bracket off the radiator support.
Last edited by dieseldave56; Apr 12, 2010 at 02:30 AM.
Melting Slicks
Joined: Dec 2003
Posts: 3,315
Likes: 17
From: Near Jacksonville Fl.
I use a CCA/ Mike Norris catch can (2.5"x 10.0" and holds 10oz, my guess) that I modify by adding a Binks 86-617 coalescing filterhttp://www.norriswiener.com/pdf/clean-air-elements.pdf to the inside of the can. Of course I don't mount it anywhere near the engine ( heat source) but down low with a bracket off the radiator support.
that I modify by adding a Binks 86-617 coalescing filterhttp://www.norriswiener.com/pdf/clean-air-elements.pdf to the inside of the can. Of course I don't mount it anywhere near the engine ( heat source) but down low with a bracket off the radiator support.
Race Director
Joined: Dec 2000
Posts: 19,304
Likes: 85
From: San Diego CA
Particulate filters are generally much more forgiving and can last many thousands of miles without causing a significant weakening of vacuum pressure.
Brillo pad type filters, whether they be stainless steel or non-metallic are certainly better than not having any filter. Unfortunately, their strand diameter is too large to trap micron and sub-microd size oil droplets.
As far as reservoir size, the average Corvette owner who drives primarily on the street would rarely need anything over 4 ounces, especially with typical designs. Having 12 ounces of oil sloshing around is bound to result in some of that oil reentering the the flow path, anyway.
For more info and a comparison of existing catch can types, see this white paper:
http://www.conceptualpolymer.com/PCV...oval%20102.pdf
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Thread Starter
Burning Brakes
Joined: Jul 2009
Posts: 1,000
Likes: 2
From: Oklahoma
thanks guys for all the info. I have come across a coalesing filter (oil) that is used in my line of work that the maufacturer says it can be washed out with gasoline to clear clogs. Not trying to reinvent the wheel ,just tring to make one for personal use that is better than what is currently available. I plan on using it on my 01 chevy truck that likes to drink oil when puling a load.
Drifting
Joined: Feb 2007
Posts: 1,993
Likes: 7
From: LaPine Oregon
Binks coalescing filter element.......
This Binks element 86-617 is 1.5 inches in diameter (1.25 ID)and 6.0 long. It is produced from a fibrous gauze material and not the densely wound elements that are available. I also use fiberglass particulate element that comes with the CCA can.
I have a two can (one particluate and one coalescing) system on my 2000 FRC but have this newer design on the 2001 Z06. I have never had to change a coalescing filter on any of my many vehicles, but then again my engines don't put out much oil contanimated vapor.
Race Director
Joined: Dec 2000
Posts: 19,304
Likes: 85
From: San Diego CA
Dave,
You might want to periodically measure vacuum pressure at idle in between the filters and your PCV valve. According to the SAE articles I've read, lack of sufficient vacuum pressure due to clogged filters will cause gaskets to leak, due to an increase in crankcase pressure.
I'd like to someday install a digital vacuum gauge to monitor pressure drop. Fortunately, the particulate filter I use takes quite a while to load up and restrict flow.
Dave
You might want to periodically measure vacuum pressure at idle in between the filters and your PCV valve. According to the SAE articles I've read, lack of sufficient vacuum pressure due to clogged filters will cause gaskets to leak, due to an increase in crankcase pressure.
I'd like to someday install a digital vacuum gauge to monitor pressure drop. Fortunately, the particulate filter I use takes quite a while to load up and restrict flow.
Dave
Melting Slicks
Joined: Dec 2003
Posts: 3,315
Likes: 17
From: Near Jacksonville Fl.
Sorry ,I thought that I had put the Binks link into my post. http://www.norriswiener.com/pdf/clean-air-elements.pdf
This Binks element 86-617 is 1.5 inches in diameter (1.25 ID)and 6.0 long. It is produced from a fibrous gauze material and not the densely wound elements that are available. I also use fiberglass particulate element that comes with the CCA can.
I have a two can (one particluate and one coalescing) system on my 2000 FRC but have this newer design on the 2001 Z06. I have never had to change a coalescing filter on any of my many vehicles, but then again my engines don't put out much oil contanimated vapor.
This Binks element 86-617 is 1.5 inches in diameter (1.25 ID)and 6.0 long. It is produced from a fibrous gauze material and not the densely wound elements that are available. I also use fiberglass particulate element that comes with the CCA can.
I have a two can (one particluate and one coalescing) system on my 2000 FRC but have this newer design on the 2001 Z06. I have never had to change a coalescing filter on any of my many vehicles, but then again my engines don't put out much oil contanimated vapor.
Drifting
Joined: Feb 2007
Posts: 1,993
Likes: 7
From: LaPine Oregon
No problems
Dave,
You might want to periodically measure vacuum pressure at idle in between the filters and your PCV valve. According to the SAE articles I've read, lack of sufficient vacuum pressure due to clogged filters will cause gaskets to leak, due to an increase in crankcase pressure.
I'd like to someday install a digital vacuum gauge to monitor pressure drop. Fortunately, the particulate filter I use takes quite a while to load up and restrict flow.
Dave
You might want to periodically measure vacuum pressure at idle in between the filters and your PCV valve. According to the SAE articles I've read, lack of sufficient vacuum pressure due to clogged filters will cause gaskets to leak, due to an increase in crankcase pressure.
I'd like to someday install a digital vacuum gauge to monitor pressure drop. Fortunately, the particulate filter I use takes quite a while to load up and restrict flow.
Dave
Corvettebob1 the link for Binks filters shows the pictures of the filters , their size, and part number . What else do you want? I've listed the part number 86-617 of the coalescing filter that I use. Cost was about $13.
Last edited by dieseldave56; Apr 14, 2010 at 04:06 AM.
Melting Slicks
Joined: Dec 2003
Posts: 3,315
Likes: 17
From: Near Jacksonville Fl.
Corvettebob1 the link for Binks filters shows the pictures of the filters , their size, and part number . What else do you want? I've listed the part number 86-617 of the coalescing filter that I use. Cost was about $13.
Where can I buy it? Your link only shows info but has no area to purchase the filter.
When I google the Binks filter with or without the P/N it leads me back to the same site.
When I go to other Binks suppliers sites and type in the P/N it comes back as not found.
Where can I buy it? Your link only shows info but has no area to purchase the filter.
When I google the Binks filter with or without the P/N it leads me back to the same site.
When I go to other Binks suppliers sites and type in the P/N it comes back as not found.
Instructor
Joined: Sep 2006
Posts: 159
Likes: 0
From: Rantoul IL
Why don't you order the filter, and have it shipped to corvettebob1?
Drifting
Joined: Feb 2007
Posts: 1,993
Likes: 7
From: LaPine Oregon
automotive paint store
Corvettebob1 the link for Binks filters shows the pictures of the filters , their size, and part number . What else do you want? I've listed the part number 86-617 of the coalescing filter that I use. Cost was about $13.
Where can I buy it? Your link only shows info but has no area to purchase the filter.
When I google the Binks filter with or without the P/N it leads me back to the same site.
When I go to other Binks suppliers sites and type in the P/N it comes back as not found.
Where can I buy it? Your link only shows info but has no area to purchase the filter.
When I google the Binks filter with or without the P/N it leads me back to the same site.
When I go to other Binks suppliers sites and type in the P/N it comes back as not found.
