Some good info on the specs of various brake kits, caliper specs, rotor diameters, etc including the OEM specs.
http://www.daliracing.com/v666-5/catalog/index_browse_part.cfm?focus=2122#BrakeBiasTable
http://www.daliracing.com/v666-5/catalog/index_browse_part.cfm?focus=2122#BrakeBiasTable