To install the rear brakes on my WRX, a little trimming of the rear brake backing plates/caliper mounting brackets has to be done. Its about 2mm of trimming. The full instructions are here
http://www.tomhoppe.com/stuff/ds411.pdf on the 2nd and last pages.
The STX rules state that "Brake rotors may be replaced with any rotor of equal or larger diameter made from a ferrous or aluminum alloy. Calipers are unrestricted, but must mount to the original attachment points."
Notice "Calipers are unrestricted, but must mount to the original attachment points"
Right now in the latest fastrack there is a rulechange, effective 01.01.2005 that trimming of brake backing plates will be legal.
What do you guys think of me doing this now to facilitate the install of my rear brakes? It is fully 100% within the "spirit" of the rules, as I am making a little trim to install a 100% legal modification on the car. It is impossible to make this modification w/o this little trim. Also, its "obvious" (according to a STAC member) that the wording allowing the trimming was just accidentally left out and the "INTENT" to allow it is there. Also, IMHO you can take the same liberty with the "caliper attachment brackets" as you can with "swaybar attachment brackets" in stock class? In stock class the swaybar is unlimited and the brackets are considered part of the swaybar.
I spoke to a STAC member, Doug Gill, and a couple of my competitors and they all agree that is within the "spirit" of the rules to make this mod and all agree that a) no should even protest me and b) if a protest is filed, then I should be ok.
Whaddya think?
-Tom