NV prolonged valve tick after torture

[Voluted]

I was getting that noise after runs during last year's auto-x season. This year I'm running an OBD2 valve cover and castrol 5w50 and I don't get that noise any more. Last year I was running 15w40 Royal Purple.

[BenM]

I hit 240 F @ NHIS driver's school during last years July 4th weekend, and the motor (stock M50TU) still runs like a champ with about a few seconds of valve tick at startups. Running Mobil 1 15W50 Synthetic and was in 95 F Heat with a lot of humidity as well. Sure was fun chasing and passing an S38 powered E9 CSL Replica. :)

[Wh33lhop]

Overfill by a little. Thatll bandaid the problem.

I did that for this last weekend, seemed to help quite a bit. Guess I'll just keep it up.

Here dude, I found the answer for you:

http://en.wikipedia.org/wiki/BMW_M88

Haha, that would be quite an answer.

What oil do you run?

Just 76 brand semi-syn 5W30

[JRKOUPE]

oyl

I did a swap last year to s50........the shop put in some Rotella I think, and after 2 track days she sounded loud enough after a few runs that other dudes came over w/ some concern.

By the time I was on way home from the track, noise was gone.


This yr I went to Mobil 1 15/50....after 4 warm hard days totalling over 8 run sessions, no noise at all....I overfill a bit....and let her run maybe 60 seconds after I come in.

200/210/ 220 is no biggie on oyl temps

[samiam3356]

^^thanks for the info