Have an S52 swapped E30 M3 with functional A/C that will slowly overheat when the A/C is running while driving or when sitting idle with A/C on or off the temp will slowly creep up while stopped. If the A/C is off and I'm driving the temp stays perfectly fine.
Cooling setup:
Mishimoto radiator
New 80C thermostat w/ 1/8" hole drilled mounted down
16" pusher fan (currently always runs)
New high performance water pump
New coolant temp sensor
No clutch or puller fan (no room)
Filled coolant through upper hose method and heat blowing out hot
The radiator will get hot all the way across but it is also the only part that has not been replaced since I've owned the car. About the only thing I can think of is trying the thicker X-line radiator or a different brand radiator thats new and has better potential cooling capacity.
Also no coolant in oil and it doesnt heat up like the head gasket is failing.
What should I do? What setups are working for other people? Am I missing something? Would a bad radiator/coolant reservoir cap do this?
Cooling setup:
Mishimoto radiator
New 80C thermostat w/ 1/8" hole drilled mounted down
16" pusher fan (currently always runs)
New high performance water pump
New coolant temp sensor
No clutch or puller fan (no room)
Filled coolant through upper hose method and heat blowing out hot
The radiator will get hot all the way across but it is also the only part that has not been replaced since I've owned the car. About the only thing I can think of is trying the thicker X-line radiator or a different brand radiator thats new and has better potential cooling capacity.
Also no coolant in oil and it doesnt heat up like the head gasket is failing.
What should I do? What setups are working for other people? Am I missing something? Would a bad radiator/coolant reservoir cap do this?
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