The Rubi Q Build

I am also pretty sure there is an updated part number for a new gm valve cover for the oil in the intake issue. But the drill method is for sure a lot cheaper solution.

I have read a lot today as well. I think the valve cover baffle thing matters. I read that GM may have actually changed the valve cover design adding a baffle without acknowledging an issue. I also think I would look into the suction from the oil fil port. I am not getting that and I wonder if it is normal. I question your pcv valve or orifice.

If you feel that much suction it has to be affecting the tune

I would definitely question the valve cover baffling. I remember having to swap mine on a new build 5 or 6 years ago due to a similar issue with the catch can getting way to much residue. They're almost impossible to get completely cleaned out where they are permanently mounted to the inside of the valve cover.

Well shoot. I took a peek in the throttle body tonight. After a bit of heart failure I removed the intake for cleaning.



Honestly think I just forgot to clean it. I distinctly remember cleaning an intake not long ago, but I think it was on the LQ9 I built. I’m just surprised I didn’t notice anything when I put the new gaskets in place. The catch can hose going to the top of the intake was clean and dry. I couldn’t get any oil out of it. I do have oil residue in each intake valve runner. One valve that is closed is holding a small puddle of oil. Mind blowing how dumb this was.






I’ll take the driver side valve cover off tomorrow and drill the holes and clean it out.

Anyways I’m ready to loom the wiring so this will make the top end much easier to do.