Originally Posted by lkailburn

no a vac source is not NEEDED but please... begin to argue with me that a vacuumed pcv system is worse than a pcv system with 0 pressure...

that was a rhetorical quesiton. i don't want you to actually begin blabbering because anything you say to argue would be incorrect. its proven that a vacuum system is more effective. that is why people spend so much money on a air pump just for their pcv system.

am i trying to say that a vented system is inneffective NOO not at all. it is effective, however, using some simple methodology you can construct a highly effective vacuumed pcv system without any fancy expensive equipment.

everyone has there own version of a PCV system. it just all depends on how much you want to put into it. this is the same as any project. when building an HMT setup, someone could always suggest a better product (ie, chipped ecu vs vafc for managment). do both work..yes, is one setup better? yes. thats all i was trying to argue.

Merry xmas everyone,


-Luke

Originally Posted by Snafubmx234

In all honestly, please show me why having a vac source makes for a better system. I thought the whole purpose of a catch can was to make sure the crankcase doesn't pressurize. In your diagram, I'm assuming the slash cut exhaust creates vac during accel, where the IM vac pulls gases out during decel/zero throttle. If so, I'm digg'n it.