Radiator E&O Clarifications
#29294 from Spec Miata Committee · Rule change · TB 20-10 (2020-10 Fastrack)
In SM, GCR Section 9.1.7.C.1.n., Cooling System, change as follows:
"2. Any aftermarket radiator (and mounting brackets) may be used, provided it is mounted in the original location, maintains the
same plane as the original core, and requires no body or structure modifications to install, and servers no other purpose (ex.
directing cold air to the airbox). Any openings created by fitting an alternate radiator must be blocked to prevent air from
entering the engine compartment. The top gap between the radiator core support and the radiator may be blocked. At least one
functional stock OEM cooling fan must be maintained and mounted in the stock location. The fan shroud may be modified for
installation."
"6. All 1990-1997 cars may install the upper radiator seal, p/n NA75-50-OK7A."