Recently had a local very reputable shop swap out brakes lines and flush the system. When I returned to the track yesterday I noticed in left hand turns the dash brake light comes on (not abs light). I checked the fluid level and everything seems fine there.
The bigger problem is my brakes are seizing. I was not able to complete the last 2 sessions as a result. I felt a vibration in turn 9 (Sonoma Raceway) so I pitted to take a look and found nothing. Went back out the next session and it was gone and all was good. All the sudden I felt the same vibration exiting 6 after a few laps. I slowed through the esses with a hand up and by the time I got into the paddock the brakes were dragging enough that I had to fight to get back to my pits. I almost did not make it all the way. After she sits for 20 min it is like it never happened.
Near the end of last year I had felt the same vibration in turn 9 time towards the end of a couple track sessions. I thought I had picked up some debris from the track since it was a hot day but found nothing when I pulled in. I am thinking the new lines have now shown me a problem that I had before - now just worse since the brake lines are not flexing.
I am thinking a bad master cylinder? Not letting the brake fluid back into the reservoir? Not sure about the ABS module or how that might play into things. Final info: 2005 Elise, stocks calipers, CL6 brakes pads, Blackwatch Racing 2 piece rotors and brake lines.
Any thoughts and suggestions?