GVR-4
Well-known member
I've been chewing on this for a while but thought I would get some input from you guys. Here's the question: Does NOT plumbing the valve cover vent back into the intake tract affect tuning? The thing is, that blowby that escaped past the rings (when under boost) ends up in the crank case and has been metered by the MAS. I would think that venting the blowby to the atmosphere would result in a rich condition since the ECU thinks that air is present (via recirculation) when it is really not.
Discuss...
Discuss...