Mech fan suggestions…..

Dana67Dart said

Define cooling issues.

Ideling wil cause most engines to raise in temp.
Does the temp just keep rising or does it level off.
What temps are you reaching?
How and where are you measuring the temp?

BTW...

there is more to fans than diameter.

The contributing factors are:
Diameter
Number of blades
Blade pitch
Blade length
Blade shape

Example...You could get more air flow out of a smaller diameter fan that has a steep enough pitch

Click to expand...

Dana67. car will hold in the 160-165 area for about the first 15-20 min, then slow and steady rise. Again I'm talking hot day, can push to 200-210 with normal street driving, and if I'm caught at a light I'll reach 220 in the time it takes just sitting there and have to shut it down. Highway driving on a hot day is fine, but city/town driving is a no go, and as a cruise night kind of guy that's a problem. Probably should have mentioned that I'm running an aluminum block 572" hemi, so no room in front for bigger cooling systems and plenty of heat created.

I agree 100% on your fan comments. I would assume (ex.) that a 6 blade 19" fan will pull less cfm than a 7 blade 18" fan. All the factors you mention have an effect on the draw. Again, my lack of space limits my options - ex. I'm currently running the flex a lite aluminum race fan due to its depth - they're thin, and why I can't/don't run a flex fan or use a clutch - no room. Things are tight enough that I need to actually consider the blade pitch to know whether it'll contact the radiator or not.