Quote:
Originally Posted by PRAY
Did he change up the design? I liked the idea originally but it needed some reworking to function. The car I was referencing had one of those can/breather combos on it. Needless to say, it didn't work. Since the breather was on the can the feeder hoses were not big enough to get it to vent properly and it never caught any oil. The PCV was also a good idea but limited the flow potential of the can. It all just went back into the motor. That motor only had about 8,500 miles on it when I pulled the heads. But that was just my personal experience with it. I am sure the LT model is well thought out and works properly.
This is why I was suggesting a dual vented with PCV valves catch can. If you can't vent to atmosphere then it is your next best bet to evacuate the crank case back into the motor. I however do fully believe in a "check ball" breather for the valve cover is the best way to vent the crank case in conjunction with a proper catch can with a PCV valve between the can and the manifold. In my opinion, any time you generate real crank pressure it need to be vented to atmosphere to keep a contaminated charge out of the cylinders. I also don't think that a single 5/8" hose is enough to properly evacuate the crank case before is creates pressure under the rings. I will admit that the GM CCV system on these cars could take care of that but I haven't given it much thought on this motor. Having a contaminated charge when you are just driving around is a deal but now a huge deal. But when under WOT the last thing I want is the engine unable to properly vent the crank case or ingest contaminated crank case fumes when it need all the fresh air it can get to mix with fuel.
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Lol, I probably should have kept my mouth shut. I know squat about managing PCV systems other than back in the day we vented to the atmosphere.
I've followed the catch can wars for that past 3+ years. I drag race, so all things considered, probably a good deal.
I'll see if David will respond to your response.