[Bme30]

I have been reading threads all morning. Exhausting and confusing. I am running an fftec 6466. I only have the rb valve and no catch can. I am wanting to get a catch can and possible vta all because I Smoke on decel or after sitting in traffic for some time.

From reading I would need to get the AD flapper delete valve and really any can I want, but this all seems confusing to me. People go back and forth and they all say something different. Please single turbo guy point me in the right direction. I'm so over smoking and looking like I drive a busted car

[phil1320]

Well from what I read, usually if you are smoking it is a sign of a failed PCV system, or a component of the PCV system. With the RB valve, it is somewhat surprising. I don't know as much as most people on the forum on the catch cans but I do know that you want to at least have something as even with a RB pcv valve, some oil will still make it through. Have you checked the turbo to make sure it doesn't have a bad seal?

[ms335i]

Hey bud I'm running a fftec 6466 car too. I have a RB external PCV. I have a hose routed from the flapper to the filter on the turbo and Mishimoto catch can. Look at the RB external PCV thread. There is a diy posted there.

[ms335i]

If you want to VTA then don't run a hose to the filter just let it vent.

[Bme30]

I am running the RB valve currently. I don't believe it is the turbo, because the car doesn't smoke large volumes or all the time, it is more or less a 50/50 scenario. Sometimes after sitting in stop and go traffic, but not always and also on decel, but again not always. The way the fftec setup it, the the PCV hose goes directly into the filter.

[Bme30]

Thank you ms335i. Did you have any smoking before the catch can or now???

[Daily Three]

Are you certain it is the PCV? Check your turbo first.. Could have a leak at the oil feed or the return.

[Bme30]

I'm certain. No oil leak at the feed or return. And no excessive oil consumption. The oil consumption. Has been the same from 0 miles to now at 65k miles

[Bme30]

Also pulled the Dp and its clean minus the normal carbon buildup.

[Terry @ BMS]

With a single turbo normally when you're smoking it means the engine is smoked. But in terms of the OCC routing it's the same as stock. Outlet needs to go around to the turbo filter inlet to avoid vapor/odor/illegal configuration. The OCC catches any oil so there is no performance drop doing that.

[Bme30]

Thanks Terry. Again it's not large clouds of smoke or all the time. It just happens from time to time. And it's very little. I can smell it more than I actually see it.

[Xshadows]

AD-E fittings or the external RB setup both seem to resolve the issue. I think I'm just going to spend the money and order the AD-E catch can and fittings for my setup.

[ms335i]

Originally Posted by Bme30

Thank you ms335i. Did you have any smoking before the catch can or now???

I had smoking before but I don't now. No oil consumption either.

[08_335i]

Make sure you're running the proper restrictor for your turbo first off. Secondly, run the BMS OCC system on the high side, hose from turbo filter, to OCC, to flapper valve. And lastly, get the RB low side PCV system. If you still smoke after all of that, your motor has issues.

[Mario54]

Thanks OP as I've been looking for what's the best catchcan setup for single Turbo conversions!

Subscribed

[Bme30]

08 335i I have the 6466 gen 2, according to precision the turbo is already restricted and was advised not to restrict any further. Secondly. I honestly do not want 2 separate catch cans in the car....as the clutter to me look distasteless. I'm sure there would be much better ways or just a single option to help elevate these issues.

[Bme30]

As for the motor.....it's not the motor. I really feel It is the pcv system. The motor has been compression tested and the numbers are perfect. I'm just trying to figure out the best occ setup and what has worked for others. I highly doubt I'm the only one that has been here.

[R.G.]

Originally Posted by Terry @ BMS

With a single turbo normally when you're smoking it means the engine is smoked.

First thing I'd check is turbo oil restricter and turbo drain line. If it's not draining well you'll smoke. Too much oil and you'll smoke.


Good luck finding a pcv set up that is generally accepted throughout community other then the head plug and delete. Best thing to do is try to understand the system as well as possible and proceed in a way that would work best for your power goal.

[Rob@RBTurbo]

We've sold over 100 of our RB external PCV kits over the past year and everyone seems to love them. Many types of turbo setups have said smoking has been mitigated or eliminated once installed, some of which even have came over from an "eliminated PCV" setup. Several smaller shops order them as standard maintenance now, understanding the intent of the function along with the perks they want to ensure it is done on everything they service.

IMO this is the best way to rule out PCV vulnerabilities and gives a sure fire way of collecting all low load PCV muck otherwise destined for the intake valves (or burnt through the chamber and out the exhaust).

I'd suggest reading this thread for a lot of information:
http://www.n54tech.com/forums/showthread.php?t=35535

Thanks,
Rob

[08_335i]

Originally Posted by Bme30

08 335i I have the 6466 gen 2, according to precision the turbo is already restricted and was advised not to restrict any further. Secondly. I honestly do not want 2 separate catch cans in the car....as the clutter to me look distasteless. I'm sure there would be much better ways or just a single option to help elevate these issues.

Engine bay "clutter" vs healthy running, what's more important to you?

[ncat10]

There is my setup. It works perfect. Haven't got any issues with smoke so far.

[Bigs135]

Hey Terry, I am confused on where to exactly locate the other line from oil catch can. I have the line going from pcv valve to oil catch can but where does the other line go exactly? Where do you tap into the turbo filter?

Originally Posted by Terry @ BMS

With a single turbo normally when you're smoking it means the engine is smoked. But in terms of the OCC routing it's the same as stock. Outlet needs to go around to the turbo filter inlet to avoid vapor/odor/illegal configuration. The OCC catches any oil so there is no performance drop doing that.

[Terry @ BMS]

How you set it up depends on the filter. In a fitting on the inlet pipe for bottom mount kits. For top mount kits in the tip of the filter, or even just in the general vicinity of the filter is "good enough".

[PrzeChuj]

Just finished my dual check valve setup for pcv . With matching ccv

[PrzeChuj]

Might help somebody