We ran into an interesting problem at Mid-Ohio this weekend and I'm still not sure of the cause. I had a brand new 5/8" Girling master cylinder with a reservoir extension (also new) on my F1600 RF97 VD with ICP 20 calipers on the front and LD 19s on the rear. I would run a practice session and come into pit lane after the session to have tire temps/pressures recorded and when I would go to leave pit lane the front brakes were locked. We had to release some fluid out of the system to get them to release. The pads had a little more than 1/8th of material on them and had been shimmed so that the piston doesn't protrude very far out of the caliper as I had been directed by others with ICP calipers. Based on the data, it doesn't appear that there was brake drag on the track. We eventually solved the problem by replacing the master cylinder with one without a reservoir extension and by replacing the front pads but I would really like to know what the true cause of the problem was. Has anyone else experienced this?
Ray