New Vargas CNC Billet Valve cover installed and now a smoke problem

miller335i

Private
Aug 1, 2017
26
0
0
Ride
Bmw 335i e90 2007
Hi All. Just had a Vargas CNC non-cast Valve cover installed. 25k on new crate engine. Single Mishi catch can on the cold side. engine never smoked before. RB drain lines, nothing else done, and it smokes at idle, catch can is clean. After driving for a few minutes no smoke at idle. Let the car cool down and start it, smoke is back. Again no smoke before the VC change. I know the new VC does not have the internal parts/design that the stock one does. How can I get it to stop smoking? I believe I need more vacuum. But then again I am a noob so...
 

AWCR1MC

Specialist
Jun 29, 2020
52
32
0
San Francisco, CA
Ride
135i
Did you plug the head ports? If you’re only running a single CC, I’d suggest upgrading to their billet dual CC setup. From what I’ve been told by them, this is the best setup in combination with their VC’s.
 

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