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Dale,
As always, you've got great information. Just
for the sake of comparison, is there any data on how many cfm's some of the
different GM mechanical fans give?
I've been thinking of going with electric fans for
some time because the ragtop can't idle for too long w/o getting hot & I'd
like to change that. I would need to go w/ dual fans to get away from the
water pump pulley. Running a BBC & a long water pump I don't have
a lot of clearance to spare.
Dean
Vandergriff
'65
ragtop
'65
hardtop
Bill,
I agree that a
single 16" Spal fan would probably be more than up to the cooling task with
the PRC radiator. The advantage to the single fan is the motor is only
3.39" deep where the dual 11" are 4.25". Disadvantage is the motor is in
the center (in line with the water pump pulley) as opposed to being offset
from center. Another option would be to mount a pair of 10" fans
individually. Each are 10.6" wide (21.2" total), 11.26" high on the
mounting hole centerlines, and the fan motor is 3.7" deep. A single is
rated at 1070cfm so that would still give 2140cfm total and would give offset
motors if clearance is a problem.
If anyone is
interested, I have Spal spec sheets for 9", 10", 11", 12", 13", 14", and 16"
fans in Adobe .PDF format and are downloadable from the Spal web site (http://www.spal-usa.com/). I'd be
happy to email offline to anyone who wants a particular size or
sizes.
File sizes
are:
9" =
84Kb
10" =
472kb
11" =
179Kb
12" =
213Kb
13" =
164Kb
14" =
232Kb
16" =
250kb
You haven't said
what climate you're in, but my guess is that the 2360 CFM 16"
Spal is more than enough, especially with a high performance water
pump. If not, you probably have another problem.
Enjoy,
Bill
Bruyn
Gilbert, AZ USA
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