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Old 07-23-2025, 08:45 AM   #3
RT-BRZ
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Quote:
Originally Posted by Scargod View Post
I've gone nuts already. Bought PCI's RUCA's.
QUESTION:
Has anyone run on the track... track only, with just one radiator fan or no fans? Seems to me that mine NEVER come on when I come back into the pits. Do your fans ever come on? Like sitting in line to go out on the track or coming in? My temps never get quite to mid point on the gauge.
In my recent issue, I discovered that the car idles so cool with a Koyo radiator that it idles at about 194F which is lower than the temp to turn on the fans. I would definitely recommend datalogging the coolant temps because the gauge isn't very reliable on the difference between 194F and 240F.

I would struggle to believe that you could run without a fan.
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