Preface, I put a catch can on my car over a year ago, since then I have run multiple autoX events and drive pretty spirited on the street, never had a drop in the catch can. I live in a stable climate, so I didnt think anything of it. (most of what I have read about full catch cans is from colder climates due to condensate)
Part 1-Yesterday, I took my car to a track night at NOLA motor sports park, running the 2.75mi configuration. The first 3 laps, I was following a guy in a miata who had been to the track before and knows the line, so I was driving hard to keep up and learn the line, then on the straight, he pointed me past, so it was wide open track from there. I got another complete lap in giving the car all that it had, and into turn 1 it went into limp mode
I looked at my gauges and my oil temp (digital) was showing 270, so OH SHIT mode kicks in and I get it to the pits. We get a fan and cool it down.
While standing around I notice a sheen if you will, on the drivers front inner fender, seems oily........convince myself its not oil, too far away from anything that has oil.
After cooling it down, the stabilitrack warning is still on, so I disconnected the Neg terminal on the battery and got it cleared. Car started up, all seems well.
Part 2- Run half throttle for 2 laps at the back of field, goes into limp mode, repeat fix from above. temp never got above 230???
Part 3-Paced laps are offered for anyone in the paddock, I decide to go ride the pace laps to check the status of my baby, leave pit lane, back to limp mode instantly. Repeat the above processes, but notice more oil this time, and see a drop on my washer fluid bottle ( I have CAI inc Cold air).
Undo the clamps, pull the filter and tube, and the tube is COVERED in oil, and the filter is saturated as well, thus coating the MAF, and causing limp mode issue. Remove catch can hoses, place on OEM PCV U bend hose that I still had in the trunk.
Part 4- leave track, limp mode. limp to parts store, clean MAF, drive 2 hours home, no problems.
If you are still reading thank you. now to the
questions
if the check valve on the catch can line is backwards, or clean/dirty sides hooked up wrong, would it cause that much pressure to blow oil back through the intake/TB, or is it likely that it was blowing into the line on the elbow of the cold air tube (which comes from the pcv on passenger side I think)?
would the above issue cause the oil temp to hit 270? that one really worries me, especially since it was first session out
what damage have I done/not done with regards to force feeding oil into the intake manifold?
any other thoughts from the experts?