DanWS6

iTrader: (5)

I recently added the LS6 valley cover to my car and this is how I'm thinking of running my new crankcase breather setup.



Does anyone see a problem with it?

code4

iTrader: (30)

That's almost exactly what I have except I installed little filters directly on the valve covers instead of hose to a filter.

Some may argue that while in boost you're not getting proper crank ventilation but I have had no problems.

DanWS6

iTrader: (5)

I just wanted to make it easy to get to that breather to clean it. I'm thinking I should run two separate breathers off each vent instead.

I'm not sure how big of a deal it is to vent the crank case under boost either.

John_D.

iTrader: (2)

You need to vent the crankcase under boost, or you'll push out the dipstick or a seal. A single breather should be enough as long as the line isn't restricted. You may get some oil on the breather element after a while.

I would keep a pcv valve in the pcv line, just to limit the amount of air pulling through there at idle,
or adjust the tb stop to let the throttle blade close a little more so the IAC can still manage the idle speed.

DanWS6

iTrader: (5)

Yeah that's why I have a breather coming off the rear vents on the valve covers. I hadn't considered leaving the pcv valve in there, that might be a good idea. I guess that should go between the check valve and the intake.

SStolen

iTrader: (22)

Instead of doing the filter off the two rear valve cover taps, why don't you just leave the factory PCV line attached connecting the driver to passenger side and run a metco breather on the driver side where the oil cap goes? Looks cleaner and the breather is easy to get to because its right up front.