I searched first! :thumbs:

I have a 2009 MCS with 53k. I walnut blasted the intake ports at about 45k and put an NM occ on. According to their site info it comes with the PCV block off adapter for the passenger side, however it does not actually block it off, but restricts the stock crank case vent hose. The occ itself gets some moisture and a little sludge, but the crank case vent hose on passenger side still gets the majority of the sludge, and after only 8k my intake ports look terrible again.

I've seen cars with the N14 with an occ on the passenger side crank case vent hose, do any of you guys know the brand that makes those as a kit? Alternatively, has anyone tried reusing the adapter ends from the stock crank case vent hose to install an occ on that side?

I did my reading before posting, and I understand the different functions of the two different valves that the crank case breathes through. I also know that many people just block the passenger side off, I still would like to hear any experience you guys have with an occ on that side. Thanks for the help!

 

Since no one seems to have had this experience as of yet, or has not posted about it anyway, I'm gonna go ahead and update what I'm dealing with...

I made a DIY noisemaker delete (the stock "cold side" tube was letting large grains of sand in, as I discovered) using the Forge boost tubes, a silicone bend I had to buy separately, and a 6" piece of aluminized steel from my local exhaust shop. I had to test fit the thing and trim the silicone a couple of times, and somewhere in the process I must have looked at my pathetically brittle crank case vent hose, because it broke. This is what it looks like:
http://new.minimania.com/part/G2NME6...58-R59-R60-R61

So in having to remove both ends of that thing, I popped off the intake manifold, and got to have a look down inside. It was nasty. I did my research, consulted the interbrain, and have come to understand that:

A: The vent hose on the driver side (where the brand oil catch can kits go) only vents pressure when the car is under boost. For my daily driver that is literally going to be less than 5% of the cars existence. Sad, I know. But it's a fact... So wtf did I put it on that side for?

B: Any oil that goes through the driver side vent hose is going straight to a heating element, then into the turbo. Now, I'm no expert so please someone correct me if I'm wrong, but wouldn't that oil just end up in the intercooler anyway..? I've seen NO OIL in my piping after the intercooler, so that source wouldn't be contributing to intake port carbon build-up anyway.

C: The vent hose on the passenger side operates under vacuum, or that other 95% of the time when my turbo is not producing boost. That automatically makes this the logical place for a catch can...

D: The passenger side vent hose goes straight into the throttle body... which goes straight into the intake ports where the carbon build-up occurs!!! A catch can on this side is starting to make not just a little, but all of the possible sense surrounding this already ridiculous problem.

E: I paid over $300 for a high quality, name-brand catch can in the hopes that someone else had already figured all this stuff out and created a reliable fix. That has not been the case.

The can itself from NM seems really well-built, and since it costs more than a brand new walnut blaster I figured I would reuse it. The project will now involve modifying the catch can mount and rotating it to face the space behind the air box. When that's ready I'll run 3/4" heater hose from each crank case vent port to a 1/2" reducer, then 1/2" heater hose, then the NM catch can. I'm just putting the driver-side vent hose back on, since I mentioned in the original post that the can on that side has filled *maybe* half way with moisture sludge in 9 months of daily driving.

I'm not trying to bash anyone in this thread, and I understand others may have had a different experience with the same products. However, I'm hoping that maybe mein kampf with this will save someone the money and trouble of dealing with an OCC kit that had very little impact on my carbon-build up. With the amount of time and money I've invested into this problem I could have bought and installed the coilovers that seem to be permanently just outside of my car budget...

 

I gotta agree with you about the main source of oil sludge coming from the passenger side PCV port. Biggest problem is adapting an OCC to the existing "plastic" hose. I used a "blanking plug" at the intake manifold and installed a smaller hose fitting in the face of it, then connected an OCC between the modified blanking plug and a "block off adapter" at the rear PCV port.

Trying to adapt a silicon hose to the pre-formed plastic hose is very awkward, and looks pretty bad too.

There are different ways to connect an OCC --- depending on driving habits and mods. I'm still fighting with it, 'cause of my mods, but an OCC can be used with good results. One in each line is even better.

Don't give up on it, eventually you'll get it connected properly.

 

Here's what I came up with:







I cut and drilled the mount that comes with the NM can and turned it to the side. I used the stock vent hose adapters, 3/4" O.D. heater hose, two reducers, and 1/2" heater hose to run to the catch can. I also removed the passenger-side choke that the kit came with. It turned out looking a lot better than I expected

I've driven about 150 miles and it already has oil residue...

When I was installed the noisemaker delete (and triggered this side project) this is what the elbow leading into the throttle body had in it:



That was coming in through that lousy coupling on the noisemaker y-pipe thing for the N14, I apologize I'm not sure the actual name of the part.