Quote:
Originally Posted by CANDIDE
Overheating.
(snip)
Radiator hose from cylinder head measures 227F and lower hose measures 222F. With old radiator,
I measured a 45F difference from top hose to bottom hose.
The overheating problem has gotten worse with the new thermostat and radiator.
It appears that the coolant is not going through the radiator enough to generate a
significant temperature drop.
With ac off, temp drops by 5-10C.
I'm stumped. Since the ac is cold, I would believe that the fans are doing their job.
But, obviously I'm missing something.
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I'm not a thermodynamics physicist, but in my mind if there isn't much difference between the temp across the radiator, it would seem like more of an air-flow problem than a liquid flow problem. If the coolant was flowing slowly through the radiator, there would be more time for heat transfer and would seems like temp differences would be relatively large.
I'm thinking it may have to do more with your shroud/fan setup that may actually be hindering air flow at higher speeds. Hope this helps.