El, we've had a rough day through freeway accidents and highway construction project delays, taking about 5 1/2hr to travel only about 225 miles.
I have a 4 core deep aluminum radiator btw.
The new fan has made a difference. The engine heats up normally to 192 degrees full running temperature and stays put there no matter whether I'm stopped at idle for prolonged periods at a freeway construction zone (today was about 85 deg on the highway I think), or idling through stoplight areas or on the go at 80MPH (flow of traffic in these parts).
Never moved a degree up or down all day. With the prior 1900 CFM fan, once full running temp was reached (about 195 on the highway) it would tolerate stop and go traffic only for about ten minutes before the temp would be 210-215 range.
I still don't know what the limits of the system will show to be if we hit 100deg heat in Arizona but I'll keep you posted.
Off to dinner with my son who's LOVIN' it!
Dirk