So, on cooling fans.
1994 GMC K1500 5.7. I installed a much larger and thicker radiator, and this truck has factory oil cooling. I am not a "fan" of fan cluthes (sorry for the pun), so I went with a factory style multi-bladed direct drive fan. It has numerous blades with a lot of pitch, (it's loud!). Engine flushed, hoses, water pump, etc., new. Condensor is new as well. Air dam is in place. The only weak point in my setup is that the fan could be 2" larger to fill the shroud better. Oh, 160 degree thermostat.
Anyway, yesterday I took it out in 115 +/- degree traffic, and the temp was climbing at stop lights. Really pissed me off. It never got close to boiling, but it hit 200. It would cool right back down once under way, but the temp climbing at a normal stop light interval is NOT what I am after!! It is borderline, and would be completely inadequate when the temps hit 125 here, or in freeway rush hour, stop and go traffic. You would be turning the A/C off and holding a fast idle to cool it. NOT GOOD!! My totally overhauled, expensive cooling system... SUX!
Comments, suggestions, fixes???
Thanx,
Vettepilot