View Full Version : Catch can for SBF?
nucjd19
04-06-2022, 05:53 PM
Question to the Hive Mind. I have seen a few videos on catch cans for separating the moisture from the oil that occurs. I am running a SBF ( 347 stroker ). Would this benefit the engine regarding wear and tear or is this overkill on a vehicle that does not get a lot of miles? My rig is 90% street and 10%track/autox. Thank you in advance.
Jim1855
04-06-2022, 06:42 PM
I've always vented at the valve covers. Effective but a bit messy as some oil does drain from the catch filters. A separate catch should work just as well and if plumbed well will be a lot cleaner. Engines need some form of venting; many assign this task to the PCV valve which works but has its own issues.
Jim
A good oil separator/catch can will reduce carbon buildup on the intake tract and back side of the intake valves. That nasty stuff in blow-by gasses that gets sucked into the intake is not good for your engine. Where legal, I route these gasses overboard like the olden days. But on emission controlled vehicles the legal option is typically an oil separator with an integral catch can. The muck that gets caught in the catch can is usually drained and properly disposed of at each oil change. It takes more than just a catch can -- the separation of gasses and vapor/liquids is the key to keeping this corrosive waste products out of the intake. I use a mishimoto system on my twin turbo Raptor that is well designed. Here's another product and there are many others: https://www.summitracing.com/parts/sda-555-3716
egchewy79
04-06-2022, 08:33 PM
I have a small one on my firewall between my PCV and manifold vacuum source. Seems to remove some blow by vapor that you don’t want gumming up your valves.
mburger
04-06-2022, 08:36 PM
I added this Moroso oil catch can to my PCV system when I installed my freshly rebuilt 347.
Thoughts on this one? While using break-in oil during the first 500 miles it’s separated some thing just under a 1/4 quart of oil.
https://www.summitracing.com/parts/mor-85474
GoDadGo
04-06-2022, 09:11 PM
I added this Moroso oil catch can to my PCV system when I installed my freshly rebuilt 347.
Thoughts on this one? While using break-in oil during the first 500 miles it’s separated some thing just under a 1/4 quart of oil.
https://www.summitracing.com/parts/mor-85474
Hey Mark,
Are you happy with the Moroso separator?
Also, glad we got to do dinner last week with you guys.
Steve
mburger
04-07-2022, 01:31 AM
Hey Steve,
So far, at least for its first 500 miles it’s doing what it should be doing. I was a little surprised at how much oil was in the can. I would much rather have it in the can to be drained then have all that oil dumped into the intake. I likely am sucking way too much oil through the PCV then I should be. I’ll need to check the baffles as well as distance between the valve and baffles.
Also, off-topic but I have the Porsche information I couldn’t remember at dinner for your friend Mark. I’ll message it to you to pass on if you don’t mind?
nucjd19
04-07-2022, 06:46 AM
I added this Moroso oil catch can to my PCV system when I installed my freshly rebuilt 347.
Thoughts on this one? While using break-in oil during the first 500 miles it’s separated some thing just under a 1/4 quart of oil.
https://www.summitracing.com/parts/mor-85474
Appreciate the info. I might head on over to summit and grab one.
nucjd19
04-07-2022, 06:48 AM
A good oil separator/catch can will reduce carbon buildup on the intake tract and back side of the intake valves. That nasty stuff in blow-by gasses that gets sucked into the intake is not good for your engine. Where legal, I route these gasses overboard like the olden days. But on emission controlled vehicles the legal option is typically an oil separator with an integral catch can. The muck that gets caught in the catch can is usually drained and properly disposed of at each oil change. It takes more than just a catch can -- the separation of gasses and vapor/liquids is the key to keeping this corrosive waste products out of the intake. I use a mishimoto system on my twin turbo Raptor that is well designed. Here's another product and there are many others: https://www.summitracing.com/parts/sda-555-3716
Once again thanks for the excellent info and link. I appreciate it!
edwardb
04-07-2022, 06:50 AM
I've used JLT Performance oil separators on my Coyote builds and have been very happy with them. They make all different varieties including for SBF. Now J&L but the same products. https://www.jlosc.com/j-l-oil-separator-passenger-side-1986-1993-ford-mustang-5-0-302/.
Avalanche325
04-07-2022, 04:32 PM
There are two styles, open and closed.
I am running an open one, like this:
https://www.summitracing.com/parts/mor-85468?seid=srese1&gclid=Cj0KCQjwl7qSBhD-ARIsACvV1X29Ja5p50ZNcgk4z9LS_f3K36vdlFqSjuAHB4aPHS 6OSdIwOweGAfIaAiJqEALw_wcB
Basically an open system is better for your engine / worse for the environment. And always a little residue under the hood.
Closed system is worse for your engine / better for the trees.
I went with open as I had enough crankcase pressure to push my dipstick out at high RPMs. Terrifying when it looked like the engine blew. I also have a locking dipstick now. My 347 is a little on the radical end of the spectrum.
nucjd19
04-07-2022, 09:10 PM
Truly, thank you fellas for your awesome responses. Looks like I am going to add this to the engine bay to improve engine life.
GoDadGo
04-07-2022, 09:20 PM
Truly, thank you fellas for your awesome responses. Looks like I am going to add this to the engine bay to improve engine life.
Me too!
Otee453
04-07-2022, 10:23 PM
https://www.trickflow.com/search/part-type/oil-catch-cans/product-line/trick-flow-pcv-air-oil-separators
I added this Moroso oil catch can to my PCV system when I installed my freshly rebuilt 347.
Thoughts on this one? While using break-in oil during the first 500 miles it’s separated some thing just under a 1/4 quart of oil.
https://www.summitracing.com/parts/mor-85474
Mark, do you happen to have any pics of where you mounted it? I think I am going to also order one up, seems like it can only help.
Thanks
boat737
04-08-2022, 08:43 AM
Here's my Moroso mounting. I made a bracket to mount on the X frame member. I tried to keep it lower than the valve cover and intake to help the residue oil in the hoses, drain in to the can, and not back into the intake or head. This was all done on a completed car.
I've only done one oil change since adding the unit, (and I think it was on for only a few hundred miles), but there was no oil in the can, or at least not enough to drain down the drain tube. So either my engine has little blow-by, I didn't have enough miles on it to capture enough of the blow-by, or it's (hopefully not) not doing it's job.
Railroad
04-08-2022, 08:47 AM
I have 3 vehicles with catch cans on them. One would fill the can, more than a few times between oil changes. The o=ring seal on the catch can forms a good seal. Even with lube on the o-ring, it takes a strap wrench to remove. I drilled, tapped and installed a quarter turn, ball valve in the bottom. It has a clear hose and feeds a water bottle hidden near the radiator.
My reason for posting this info, consider the kit with drain. Of course there is the option I used.
mburger
04-09-2022, 12:43 PM
Mark, do you happen to have any pics of where you mounted it? I think I am going to also order one up, seems like it can only help.
Thanks
Travis, sorry these pictures are so huge and turned but I’m on my iPhone and just took the photos now.
Sorry it took so long to post these. The catch can is mounted directly to the passenger foot box at the top.
https://thefactoryfiveforum.com/attachment.php?attachmentid=165230&d=1649525760
https://thefactoryfiveforum.com/attachment.php?attachmentid=165231&d=1649525760