Breakdown at the Glen
Ran the track with the 600 lb springs. Immediately felt a difference as the rear end of the car was WAY stiffer and felt really good. I need to up the springs up front to 600 as well I believe. I did not adjust the rebound, as the rear has always been set to full stiff.
The car was handling wonderfully. The brakes had a hard time adjusting to the cold ambient temperatures, so that was interesting the first sesion on the first day.
The next 3 sessions were awesome.
Day 2 blew for me as I turned my car on that morning and got an EML light. Went into limp mode and restarted and drove to the track. As I was about to get on the track for my first session, the EML light came back on and I did a victory lap and pitted in.
Got 4 codes thanks to the Bavarian Auto Scan Tool:
code 230 : egas nominal/actual comparison
code 120 – comparison throttle valve pot
code 118 throttle valve pot 1.
code 79: exhaust temperature sensor
We narrowed it down to probably the throttle positioning sensor on the front of the intake box. I swapped it with my friends car and the car ran fine and showed no codes. Ordered the part from Tischer BMW today for $77 and should arrive on Monday. Sadly, the EML and faulty TPS ruined my 2nd day at the glen, but luckily it was not a serious code.
Anywho, the springs rock. I am thinking about dropping the rear of the car another 1/4 inch and the front 1/2 inch. The car feels alot better at home, and since there is not much street driving, I think that this should be a good set up.
Will let you know on/before July 23.