I am going through all the same problems and frustrations temperature wise that seems to plague most 3rd genners. Went driving around today, trying out my latest thoughts on air dam modifications (and watching the temp steadily rising). I am an aircraft mechanic, and pretty experienced in sheet metal fabrication. A picture started to form in my mind, of a louvered box, that would fit into the "hole" behind my bumper, maybe slanted down to the rear, ending an inch or two above the bottom of the air dam, but flush with the bumper in front. The louvers would angle up and force air into the hole. An alternate idea might be to reverse the slope, forming a chin scoop at the front, maybe 2 or 3 inches or so below the bottom of the bumper (this one would not have a louvered bottom surface), giving some "ram air" to the radiator. Anybody tried anything like this?

Hot in Tucson

 

I can't answer your specific question, but do want to say that my Formula never runs hot. Do you have the dual or single fan setup? Flushed the cooling system recently?

Sorry I can't help with the fabrication questions.

 

Nope, engine driven fan only. New radiator, new thermostat, new coolant, etc.

 

Perhaps adapting a dual fan setup to run on your motor would be a worthwhile project? Or an aftermarket electric piece that moves a lot of CFM?

 

How about the Shroud around the Fan?

 

Was taking a good look at my air dam today, and the center section looked bent back a little bit. Compared it to a new spare, and it definitely angled slightly forward. Scrapped the old air dam and installed the new one, then added two straps to connect the center section with the outboard sections. Hopefully, this will stiffen up the center section slightly. Just took it out for a 20 mile test drive, and it never went over 215 degrees, even though most of the drive was at 70+. It's not real hot out today, but I think the heat problem may be solved.