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So am i the only one that thinks the jag fans are "weak" meaning they don't spin the fan quite fast enough when hot?



On the street my 440 runs a little hotter with the Jag fan clutch than it did with a old non-thermal clutch. Stuck in traffic on a hot day the Jag fan clutch still keeps the temperature at a healthy level - the old clutch didn't.
I would have liked the Jag clutch to spin the fan a little faster, but as long as it cool the motor on a hot day I'm fine - less drag than the severe duty units.