Do I need a clean air source in my catch can system.. Pics inside

[Aster]

I ran my setup by Tracy at revXtreme who in the past threads on the subject has been highly regarded with having accurate and good information on how these systems should be setup. He had told me my approach was ok.

I capped the original throttle body fresh air source.
Put a breather going to the front port on the passanger valve cover.
Ran the back valve cover ports (driver and passanger) to the RevXtreme catch can.
The vacuum from the catch can tee's, one side going through a check valve to the intake manifold for vacuum under no boost, the other line going down to the Procharger inlet hat for vacuum under boost.

[vipvegas]

Originally Posted by kenp

I called Speedinc and they told me there is not a check valve in their oil fill breather. It's just open to the atmosphere.

Thats odd cause the one I ordered off there site says this

Billet Valvecover Breathers
CNC machined 6061-T6 aircraft grade aluminum. Positive filter engagement, will not blow out as crankcase pressure increases, yet easily removed. Fits OEM valve covers, no modifications, easy to install. Cotton pleated chrome-topped filter, washable. Polished to "Show-Quality" luster. Includes high quality seals for leak free engagement.

Although I think I misread it. The will not blow out under crankcase pressure means physically blow out. Not will not allow air out under pressure.

This wording is confusing, guess Ill have to send it back wanted one that only allows fresh are in not out. Or Ill see If I can fit is with a pcv valve or something.. They should change the wording

[SKINNY69]

Don't vent to atmosphere. Your setup is great and I wouldn't change a thing.

[kenp]

I left my LS6 pcv system in tact with a catch can and I installed a one-way pop off valve from McMaster-Carr in my oem oil fill cap. I have it set so that if there is any positive pressure in the crankcase, the valve releases that pressure.

[TLewis4095]

If anyone wants the diagrams just give me your email & I'll send the entire file with all drawings & applications.