Quote:
Originally Posted by RussMcB
It's been a few years since I replaced my radiator, so the shroud details are not fresh in my mind ... I'm wondering if the divider fins are to discourage air from going through the other fan hole rather than the radiator when only one fan is running.
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I believe you are right. There would be air taking short cut when primary is not on (coolant below trigger temp - factory:225, Marc:205) and yet secondary is triggered due to AC high side pressure higher than 220 psi.
Yesterday it was 93 to 96 in Northern VA. As cars started to back up coolant temp climbed to 207 followed by drop to 203 once both fans came on line and stayed at 203. Oil temp stayed steady at 197. When I stopped for a while to pick up some stuff at Advance Auto Parts, starting the car, I saw 211 from heat soak. After starting the motor, coolant temp came down to 203 again.
AC was nice and cold through out the driving.