We have now had two or three brake caliper pin failures on our cars at Road America due to what I believe is the aggressive curbing.
Every time I prep a car in between race weekends, as well as between every session at the track at Road America for sure, I pull off the rear brake calipers and make sure that the brake caliper pins do not have any wiggle or that they are not loose. I also Red-Loctite them when they are "new".
I have two questions:
1. Is it possible to get a stronger pin made or something that would be able to handle the vibrations better?
I dont know if this would be persay "SM Legal" but I do not see how it can be a performance advantage in any way if all it is is a stronger Caliper pin so that it does not shear so often. All failures I have had have been within the body of the cast caliper bracket part on the threads of the upper pin. I know of many many people who have had brake failures at Road America, and this is a huge safety hazard. I almost did some serious damage to our cars this weekend when my caliper pin sheared...
2. Would it be a good idea to change the caliper pins after every event to better prevent failure of these items? If the pins have a four weekends to failure rate @RA then replacing them every weekend would prevent them from reaching that point?
Are there other tracks that this happens at?
Please let me know your opinions..