Hi everyone,
I took my '08 328i to the track for the first time yesterday. I had an awesome day, however, I noticed in the afternoon sessions I was having some car issues.
Outside air temperature in the afternoon was around 95F. After 10-13min in my session I noticed that the top of 2nd was not pulling as hard as it should have been. I changed to 3rd to see if I had any low end and it felt weak as well.
Mods:
-3 stage intake manifold and flash
I pitted, and checked the temp reading for my coolant (212F/100C) and oil (302F/150C). I was not monitoring these in earlier session so I did not know whats normal. After letting the oil cool to 275F/135C I went back on track and the power was back. In my final session I hit the issue again when oil reached ~293F/145C. During this time my coolant stayed at around the same temp of 212F/100C.
I want to go tracking again, however, I really need to get this fixed. It's frustrating when you pass someone, have an open road to get an awesome lap time, and then hit this issue and the same person passes you.
Any ideas what could be causing this issue? My best guess is I'm hitting some oil temperature safety threshold and the engine is reducing power, but I don't know.
While on the topic, any BMW CCA events in SoCal anytime soon?
Thanks!
Kyle