[Kdawg550GT]

I installed this exact system from a previous thread you posted. I have a couple questions. I used your idea of fabricating a spare oil cap and vacuum gauge. Im running roughly -8 psi vacuum at idle. Sure sucks the oil cap down at that reading. Have you found that vacuum increases with higher RPM? Ive also seen a service bulletin from BMW that says vacuum should be at 15 mBar which is .02 psi. This seems to conflict with the -8. All this concerns me a bit as sometimes I spool up nicely and other times the turbos don't spool at all. Just wondering if you've run into this. BTW turbos were completely rebuilt and when she's on she pummels asphalt.

Your thoughts?

Second. I found a set of JEGS One-Way Check Valves to replace the clunky CCV's and modified the flapper to just hang there. I like the look and have not burned a drop of oil in over 1k miles.