Clean side PCV and Aftermarket Intakes

[polskifacet]

Through research and talking to some bros, utilizing the suction of the turbo, which gives you slight vaccum is more healthy than equal pressure to atmosphere. The oil returns on the turbos will flow ever so slightly better etc. This is why RX & URP utilize this suction in their catch can designs. Both companies use McNally CSS. Yours is probably fine but utilizing the suction is the best for the turbo seals and piston rings and possibly 1-3% better performance (1% or less on our power level 3% with 1500hp)

 

[8nutz8]

Through research and talking to some bros, utilizing the suction of the turbo, which gives you slight vaccum is more healthy than equal pressure to atmosphere. The oil returns on the turbos will flow ever so slightly better etc. This is why RX & URP utilize this suction in their catch can designs. Both companies use McNally CSS. Yours is probably fine but utilizing the suction is the best for the turbo seals and piston rings and possibly 1-3% better performance (1% or less on our power level 3% with 1500hp)

Maybe there's some fundamentals i'm missing in the design so bear with me as i'm just trying to understand. . .
How does a CSS routed to the airbox take advantage of suction from the turbos?  Or function any differently than the way i have it setup other than it draws air in from the nipple rather than the oil neck?
In both cases it's still getting air from the intake and routing it to the crankcase as far i see it.

 

[polskifacet]

Your setup may work perfectly fine.

The front pcv line acts 2 ways. Under idle/vacuum it intakes fresh filtered air, under WOT it allows the turbo to suck crank case air while the seperator on the rear cover sees boost thus it is closed.

Physics would say that your setup has less sucking power as its further away from source of suction (turbo).

I have an Airraid intake so your solution doesn't apply.

 

[8nutz8]

Your setup may work perfectly fine.

The front pcv line acts 2 ways. Under idle/vacuum it intakes fresh filtered air, under WOT it allows the turbo to suck crank case air while the seperator on the rear cover sees boost thus it is closed.

Physics would say that your setup has less sucking power as its further away from source of suction (turbo).

I have an Airraid intake so your solution doesn't apply.

How would a CSS also routed to the intake provide any more sucking power?
Unless you're planning on routing the CSS hose to the nipple on the front charge pipe to draw in air from the OEM location?

 

[Agentlongwood]

Why would you want to get the suction from the clean side?  Doesn't that defeat the whole purpose of it being "clean?"  Under boost you get that suction from the WOT line that goes from the front turbo intake to the catch can, right?       

 

[polskifacet]

Your setup may work perfectly fine.

The front pcv line acts 2 ways. Under idle/vacuum it intakes fresh filtered air, under WOT it allows the turbo to suck crank case air while the seperator on the rear cover sees boost thus it is closed.

Physics would say that your setup has less sucking power as its further away from source of suction (turbo).

I have an Airraid intake so your solution doesn't apply.

How would a CSS also routed to the intake provide any more sucking power?
Unless you're planning on routing the CSS hose to the nipple on the front charge pipe to draw in air from the OEM location?

Yup that would be the plan but I never ended up getting the css. I currently have a clear pipe in the stock location and it doesn't show any sign of oil.