Al,
Are you sure of the 40
GPM? That seems like a lot. My radiator in/out is 1.25 inches, so
the water would be traveling at 628 feet per minute at that flow rate.
That is over 7 miles per hour!
Bill B
When
my 20B (with a 13B pump that Atkins referred to as ‘high flow’) was
on the dyno the measured flow was 48 gpm with the standard pulleys. I
expect the dyno cooling loop was fairly low pressure drop compared to our
typical systems, so I’m just guessing 40 gpm is in the ballpark.
628 fpm (10.5 ft/sec) would not be considered very high - - above 15 ft/sec I’d
consider high.
Al