HI MY NAME IS DAVID I LIVE IN EL PASO TEXAS AND ABOUT THREE MONTHS AGO BOUGHT A 1985 RX7 GSL WITH 85,000 MILES ON IT. SUMMER CAM ALONG AND SO DID 100 DEGREE TEMPERATURES AND MY CAR STARTED OVERHEATING. HAD RADIATOR CLEANED, CHANGED WATER PUMP, CHANGED THERMOSTAT ( ORIGINAL TO 180 DEGREES) AND STILL OVERHEATING. ANY ADVICE. THOUGHT OF FINDING A BIGGER CAPACITY RADIATOR ANY LEADS.

THANKS IN ADVANCE

DAVID

 

did you use a mazda thermostat? Thermostats and oil filters need to be Mazda OEM items. And turn the caps lock off.

 

Seems like you changed every thing. Change the coolant. Water and antifreeze thats been there since 1985 won't work too good.

 

i would say the bigger ratiator would help and mabye new cooling system, fans, etc.