R56 Oil catch can questions
Oil catch can questions
Hey everyone, this may be a stupid question, i know the benefits of a Oil catch can, But is it worth getting when my MCS already has 73000 miles on it? Will there be any benefits to it?
Are you noticing significant oil consumption?
Do you drive short trips very often or not allow the engine to reach normal operating temperature?
- Erik
Thanks for the quick reply. Yes i had a carbon build-up service done about 1000 miles ago. I actually don't consume that much oil between changes, average of about 1/2 quart. Typically change oil every 3000-5000 miles. i drive on a normal day one way to work about 40 miles so the car is always at 220 degrees about half way there.
Installing a catch can (and passenger side PCV block) will reduce the oil vapor collection inside the intake manifold and reduce carbon build-up on the valves.
You're doing better than most with that; keep it help, that significantly helps.
- Erik
You're doing better than most with that; keep it help, that significantly helps.
- Erik
Thank you very much for the information. I think i am going to go ahead and get the BSH Catch can from way motor works. I might also buy the alta foam cai. I have the k&n typhoon but it hits my strut bar. Any suggestions on that?
Have been happy with the Alta, but am thinking of moving to the DoS CAI unit
do you need a boost tap for the oil catch can install? seems like oil catch cans are so generic. I see ebay listing for $50-70.
anyone can confirm it can be installed without the boost tap? Thx
anyone can confirm it can be installed without the boost tap? Thx
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I can be installed BUT it will not work as designed as the passenger PCV port is still letting the engine suck in oil vapor.
- Erik
- Erik
So you go buy the blocking plugs from Europe and plug those in and you are good to go.
The ones on ebay, ????? Don't know what brand, etc. but I like the BSH plus it has baffles inside. Don't know if they all do or not.
Remember, you get what you pay for.
Pretty sure it's part of the security system.
I mounted my OCC just to the left of the bracket, next to the JCW CAI box, it was a snug fit but it works well.
Check out my photo's here>
I mounted my OCC just to the left of the bracket, next to the JCW CAI box, it was a snug fit but it works well.
Check out my photo's here>


- Erik
Just installed my red billet oil catch on Saturday. Hoses are all installed, need to work on a permanent bracketing arrangement, right now its wire-tied temporarily to keep it from bouncing around too much. Got mine on ebay for $32, can is excellent quality but nothing except the mounting bracket was any good as far as accessory items, spent $20 at Advance Auto to get the 5/8 to 3/4 copper hose/pipe adapter (the adapter is copper, that is) and a bag of 6' heater hose - 3/4" and S/S aircraft hose clamps. Total install time about 1/2 hour, gonna be a bit more to figure out the bracketing. To a degree you do get what you pay for, obviously in this case all the money went into the can itself, which is fine with me, rather have a good can and just swap out the crap anciillary parts. Yes, I know the $200 ones have wire-mesh oil "fences" inside but I do have a limited budget and still need to do the FMIC. Can always upgrade later if I find that this thing is as effective as some other people are claiming. I am curious to see how much oil gets bypassed.
Sorry about that, here is the LINK
BTW, I also updated my gallery, didn't realize how old some of those photos were, a lot of milk has gone under the bridge
since some of those got posted! 
BTW, I also updated my gallery, didn't realize how old some of those photos were, a lot of milk has gone under the bridge
since some of those got posted! 
That looks good John...where did you get the bracket attached to the firewall? did you make it?
I had to bend the bracket a bit to change the angle to the top section since I mounted it on the firewall which angles back as it drops down. I took the drivers side cowling off to gain access to the bolts. The bolt and the threaded L bracket it threads into that actually join the two BSH brackets is a left over from a fiber optic long ago project!

Hope this helps!


