Reply to "Proper location for fan control thermostat"

bosswrenchMember

Supplemental to Julian's post, I once built a fan shroud on the backside of a good-condition stock radiator, using two 10" blade flat sucker fans. On a trip to 'Vegas across our lonely desert highway, I ran our car up to 150 mph and held it there for ten (10.0) full minutes. The water temp slowly climbed from it's usual 190-200 degrees F to 230 degrees F, where I quit. After several more minutes at 80-90 mph, the water temp slowly returned to 'normal'.

Several years later after changing to a better aluminum Fluidyne rad and bigger shrouded 12" Flexilite sucker fans, I repeated the test; the high speed temp climb did not happen- at least at a sustained 150 mph. Better rad? Bigger fans with larger holes in the shroud? Both? Not sure.

3/29/183:03 PM

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