11-08-2010, 07:50 AM
ideally your car would be running yes, to warm the engine up to operating temp, else I guess you may get wonky results. I'd say route the pcv through the catch and to the intake, and add a secondary catch to the breather if your worried about oil. It is normal for boosted cars to blow a little oil out of the breather, bad thing about that is oil lowers octane and thus increases detonation. Boosted on the track, pushing it hard, with high temps....this isn't a good scenario.
I'm in the process of making a dual catch can that is correctly made with the proper baffles for both pcv and breather on my car. For now i'm not pushing it too hard and just going to route pcv and breather back to where they should be. Its also nice to be able to monitor how much oil is blowing out of there...i'm not sure how much is too much....I do know that none is good, but even cars that are stock and driven hard I see a bit of oil in the intake.
I'm in the process of making a dual catch can that is correctly made with the proper baffles for both pcv and breather on my car. For now i'm not pushing it too hard and just going to route pcv and breather back to where they should be. Its also nice to be able to monitor how much oil is blowing out of there...i'm not sure how much is too much....I do know that none is good, but even cars that are stock and driven hard I see a bit of oil in the intake.