[J. Dub]

Originally Posted by robc1976

Would need entire car lol!

Tapped head
Tap intake ect

How much if I brought my car to you? I live out of state but I'd drive to you.

[robc1976]

Originally Posted by J. Dub

How much if I brought my car to you? I live out of state but I'd drive to you.

Probably have to pass, not a quick job since you have to let stuff dry

[J. Dub]

Originally Posted by robc1976

Probably have to pass, not a quick job since you have to let stuff dry

Understood. I'll see if I can find a local shop. Thanks for the DIY

[J. Dub]

So Rob what OCC should I purchase if I want to do this? Let me rephrase, since I value YOUR opinion over most.
What OCC would you purchase or recommend if a guy made a DIY like this one in the OP?

[Milan]

We have been doing this in the LSx community for years.

I've always hated the BMS catch can because its not the proper design for a boosted car. Tapping the intake is the only proper way to evacuate under boost.

[robc1976]

Originally Posted by Milan

We have been doing this in the LSx community for years.

I've always hated the BMS catch can because its not the proper design for a boosted car. Tapping the intake is the only proper way to evacuate under boost.

head is tapped and required for this DIY and may I see your data for the claim on the BMS OCC.

[robc1976]

Originally Posted by J. Dub

So Rob what OCC should I purchase if I want to do this? Let me rephrase, since I value YOUR opinion over most.
What OCC would you purchase or recommend if a guy made a DIY like this one in the OP?

If you want it in my location use the BMS or you can use the AD OCC a bit farther down away from manifold. I am adding a 2nd OCC to the boost side today and that will require a BMS OCC because of the small spot its located in.

Will be adding this to the DIY.

[Rob@RBTurbo]

Been getting some messages for updates, so here is part #1 of the fix- RB External PCV valve. Next is the vacuum/pressure reference adapter which hopefully we have tomorrow or Thursday. By late next week we should have about 5-10 kits production ready for those wanting to finally get rid of the valve cover and valve cover gasket based vacuum/pressure reference.

Thanks,
Rob

[BeastMode335i]

Yayyyy...!!!

[J. Dub]

Rob, could you guys make a complete kit for everything including what's in the OP with occ?

[robc1976]

Originally Posted by Rob@RBTurbo

Been getting some messages for updates, so here is part #1 of the fix- RB External PCV valve. Next is the vacuum/pressure reference adapter which hopefully we have tomorrow or Thursday. By late next week we should have about 5-10 kits production ready for those wanting to finally get rid of the valve cover and valve cover gasket based vacuum/pressure reference.

Thanks,
Rob

Rob I hate to say this but I don't know if this will work. You 100% have to have a OCC on the vaccuum side or you will flood the throttle body with oil. I get blow by on vac side and all of Aubeast testing did also. Need to make the fitting in such a way it accepts a 3/4" line or -8AN fitting so OCC can be utilized.

You're fitting looks amazing as always, I have 2-OCC's. I will update the thread with 2nd OCC on boost side.

[Rob@RBTurbo]

Originally Posted by robc1976

Rob I hate to say this but I don't know if this will work. You 100% have to have a OCC on the vaccuum side or you will flood the throttle body with oil. I get blow by on vac side and all of Aubeast testing did also. Need to make the fitting in such a way it accepts a 3/4" line or -8AN fitting so OCC can be utilized.

You're fitting looks amazing as always, I have 2-OCC's. I will update the thread with 2nd OCC on boost side.

If an OCC is required on the vacuum side, then you are pulling too much vacuum through the PCV valve and/or the 4 cyclonic separators are not doing their job or there is more problems in the engine yet. Or perhaps the large size of the -8an line is a bit much pull on the PCV valve. That said there maybe some orifice change requirements that come with time, but this design retains the entire premise of what is going on from the OEM's (but only externally) and should be very close to if not entirely dialed to what it needs to be as is.

Rob

[Rob@RBTurbo]

Originally Posted by J. Dub

Rob, could you guys make a complete kit for everything including what's in the OP with occ?

Yes. There will be 2 custom adapters (one is shown), along with the other minor bits to accomplish the same exact result. We will not be addressing this with an OCC, but it can be added by the end user if they feel the want it in place.

[robc1976]

Originally Posted by Rob@RBTurbo

If an OCC is required on the vacuum side, then you are pulling too much vacuum through the PCV valve and/or the 4 cyclonic separators are not doing their job or there is more problems in the engine yet. Or perhaps the large size of the -8an line is a bit much pull on the PCV valve. That said there maybe some orifice change requirements that come with time, but this design retains the entire premise of what is going on from the OEM's (but only externally) and should be very close to if not entirely dialed to what it needs to be as is.

Rob

that's the purpose of the OCC LOL! The separators don't do there job since they are over worked. I can only tell you that its pulling OEM spec vac with -8AN line. Motor is in perfect shape.

[robc1976]

Originally Posted by Rob@RBTurbo

Yes. There will be 2 custom adapters (one is shown), along with the other minor bits to accomplish the same exact result. We will not be addressing this with an OCC, but it can be added by the end user if they feel the want it in place.

Rob could you make 2 versions? 1 like pic above and other with -8AN fitting?

[Rob@RBTurbo]

Originally Posted by robc1976

that's the purpose of the OCC LOL! The separators don't do there job since they are over worked. I can only tell you that its pulling OEM spec vac with -8AN line. Motor is in perfect shape.

The PCV valve itself should flow limit the amount of vacuum pulled back into the intake (they do this by design), however with a very large direct vacuum source (ie. -8AN) they may just open too wide and allow too much flow which further overworks the cyclonic separators.

I am simply saying that inserting an orifice inline (or by using a smaller vacuum line) may help restrict the airflow to the point where the PCV Valve/cyclonic separators are not overworked and thus work effectively and efficiently. In other words although the OCC could help catch some of the oil vapors over mileage, if the vacuum airflow volume is restricted to the correct levels all should be well without an OCC as well (all else being equal).

Originally Posted by robc1976

Rob could you make 2 versions? 1 like pic above and other with -8AN fitting?

The production kit will be very stealthy. AN fittings will not be necessary, but we can talk about it sometime.

[robc1976]

Originally Posted by Rob@RBTurbo

The PCV valve itself should flow limit the amount of vacuum pulled back into the intake (they do this by design), however with a very large direct vacuum source (ie. -8AN) they may just open too wide and allow too much flow which further overworks the cyclonic separators.

I am simply saying that inserting an orifice inline (or by using a smaller vacuum line) may help restrict the airflow to the point where the PCV Valve/cyclonic separators are not overworked and thus work effectively and efficiently. In other words although the OCC could help catch some of the oil vapors over mileage, if the vacuum airflow volume is restricted to the correct levels all should be well without an OCC as well (all else being equal).



The production kit will be very stealthy. AN fittings will not be necessary, but we can talk about it sometime.

I would still use a OCC otherwise you wouldn't need to walnut blast the valves when you use the stock system. Hence, the cyclonic separators are over worked. Smaller diameter hose means less volume, not less vacuum So I agree with that aspect.

You would just have to empty OCC a little more often on vacuum side.

[Rob@RBTurbo]

Originally Posted by robc1976

I would still use a OCC otherwise you wouldn't need to walnut blast the valves when you use the stock system. Hence, the cyclonic separators are over worked. Smaller diameter hose means less volume, not less vacuum So I agree with that aspect.

You would just have to empty OCC a little more often on vacuum side.

The thing with this solution is that it should actually will be a little better distribution than the OEM through the valve cover (which primarily coats cylinders 4, then 6 and 5). So the oil coating of intake ports 1-6 distributed semi-equally will mean more interval between walnut blasts. To those with PI, it is a moot point

All in all, a little oil coming back into the intake is not the end of the world… but yes for those who want an OCC they can simply insert one now that it is all externalized. The intention however is to certainly not be a requirement while being an overall improvement to OEM.

[robc1976]

Originally Posted by Rob@RBTurbo

The thing with this solution is that it should actually will be a little better distribution than the OEM through the valve cover (which primarily coats cylinders 4, then 6 and 5). So the oil coating of intake ports 1-6 distributed semi-equally will mean more interval between walnut blasts. To those with PI, it is a moot point

All in all, a little oil coming back into the intake is not the end of the world… but yes for those who want an OCC they can simply insert one now that it is all externalized. The intention however is to certainly not be a requirement while being an overall improvement to OEM.

I would use OCC without question. I totally agree no matter what route you take both Will be better than OEM

[J. Dub]

The new kit RB makes... Is it identical to yours Rob?

[robc1976]

Originally Posted by J. Dub

The new kit RB makes... Is it identical to yours Rob?

not close. I use dual OCC and much larger lines. My hole system is for sale in my part out thread.