Radiator fans or not? (Page 2 of 2)

Since that's kinda small on my super-hi-res 1920x1200 17" laptop screen, I've decided to type it all out.
Fortunately I'm a fast typer.

How Much Radiator?
The following formula can be used to determine a reasonable starting point for radiator volume for a given vehicle.
Start with 2 cubic inches of core for every cubic inch of engine. Increase or decrease that ratio by the following factors:
ADD:
.1 for a vertical core radiator
.1 for an inline engine
.1 for small trailer  towing
.1 for three-row radiator
.1 for double evaporators
.2 for outside temperatures over 105°F
.2 for medium trailer towing
.2 for a small engine in a heavy car
.2 for fan diameter less than 90% radiator core's smaller dimension
.3 for air conditioning
.3 for no fan shroud
.3 for an antique car with small engine compartment
.4 for large trailer towing
.6 for a diesel engine

SUBTRACT:
.1 for remote transmission cooler (not in the radiator)
.1 for manual transmission
.1 for single-row radiator
.1 for a V6 engine
.2 for a pickup truck engine compartment
.2 for outside temperatures less than 90°F
.2 for a full fan shroud
.2 for a horizontal-flow radiator
.3 for a large engine in a light vehicle

To check the formula against a late-model car, we checked a Mustang with a 302ci engine and air conditioning. The basic formula says 2x302=604ci of radiator core. But the formula must be factored for air conditioning (add .3), temperatures over 105°F (add .2), and a horizontal-flow radiator (subtract .2). The corrected formula would be 2.3x302=698ci of radiator core. The actual core (not the radiator but the core dimension) on the mustang measures 18x24x1.5, or 648ci of core.
The formula may not be perfect (should we allow for a large engine in a light vehicle?), though as you can see, it's a good starting point.

i believe the standard recipe conversion for rotaries is to double the cooling. 

1.  ease back on the caffeine there, Kinison.  people are screwing with you,  that's part of the deal with Lemons.

2.  related to #1...you sound like you're perilously close to taking this whole thing seriously.  that means you will have zero fun, and likely will end up prominently featured in threads with names like "my public apology" and "ZOMG, the real story about how Jonny and Phil RUINED our weekend!!11!!!!"

get a shorter belt

Yep.
Take a piece of string, run it around the pullies (remember, grooved pullies see the bottom of the belt, smooth pullies the top) and measure it out. Then go to Vatozone and tell the mongoloid behind the counter you need a belt 56.5 inches long or whatever, and watch his head explode as he insists that you need to tell him what year/make/model/engine the car is.
Or, go to Napa or something and tell them what length you need and get the correct belt the first time.