Is my cooling system operating normal?
I have a hard time grasping the cavitation argument. How much time does an engine spend at high rpms (where cavitation would be an issue) under normal street driving conditions? I'll take the high flow pump any day over the low flow pump - even with over driven pulleys.
Just so you know,
I run a Milodon HDHi-flo, 8-vane pump, with the anti-cavitation plate. (and yes with a hi-flo 195stat)
and it is underdriven, cuz
my engine, with a manual-trans, actually does spend a lotta time at higher rpms.
I run the 7-blade high attack angle bent-tips all steel fan on a thermostatic clutch. It's been on there like that since 2001.
No problems; and
system runs at 207*F, on a 195 stat, every day/all day, no matter how she's being beat on, including parading at 4mph with just 5* of timing advance, on the hottest days of summer.
For me, that big FORD T-clutch was a game-changer. It was new from the dealer in year 2001-ish, out of the parts book for an early 2000s pick-up truck. As soon as I heard that truck come into the shop I was working at, I knew I had to have one. By lunch it was in my grubby hands. By supper I was breaking it in. lol.
Just so you know.