Quote:
Originally Posted by wedged
Jody-from your description, you have no vacuum source connected to the breather system, other than a final return to the intake tract ?
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correct, just the fume pull into the air filters, no direct vacuum. Mine is set up as a breather system for any excess pressure to have a way out, not a pcv type system. If you do a manifold vacuum pull you'll need some very good oil separators in the system also. Even with the best aftermarket oil separators I've always had some oil sucked back through as even the oem systems do. Oil in the intact increases the chances of detonation so I go this way and eliminate that issue. Plus the intake is under pressure with boost so any vacuum line to the engine is as well. The air filter hookup under boost should pull some pressure, and it definitely increases pull under boost instead of the opposite with a manifold vacuum source.