Testing cooling system n a/c

Heating, Cooling & AC

  1. diesel_lv

    diesel_lv Well-Known Member

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    Well I'll finally get a good test of my cooling system and a/c next week. 110 last week and did well. Had a 115 day last yr w electric fans that did well in slow traffic and idle but horrible on interstate. But next week I finally get a real world test of my mechanical fan and factory shroud. Screenshot_20210610-141450_The Weather Channel.jpg
     
  2. Ironbuilt

    Ironbuilt FBBO Gold Member FBBO Gold Member

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    121?!? That's CRAZY!!
     
  3. diesel_lv

    diesel_lv Well-Known Member

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    That's only the beginning. Gets worse by Aug/Sep.
     
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    • davek

      davek Well-Known Member

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      please let us know how it works out next week.
       
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      • diesel_lv

        diesel_lv Well-Known Member

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        For reference, 383 stroked to 496, 610hp on dyno. 26" Entropy 2 row aluminum radiator. Each row is 1.25". Flowkooler water pump, reverse rotation due to serpentine pulley setup. Direct drive 11 blade 19" nylon fan from Chevy truck w 496. 180° Shaw style Mr Gasket thermostat. A/C is all stock inside car, under hood is parallel flow condenser, new lines, new dryer and compressor from '96 Durango. At 115° at idle it blows 38° at the vents.
         
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        • SgtSuperbird

          SgtSuperbird Well-Known Member

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          And you live there on purpose???
          :wtf:
           
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          • Ironbuilt

            Ironbuilt FBBO Gold Member FBBO Gold Member

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            :rofl:
             
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            • diesel_lv

              diesel_lv Well-Known Member

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              Unfortunately!!! Own "Everything" outright. No bills, retired 8 yrs. 1 mile from the Colorado River. Spend most of my time on my boat.
               
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              • MoparLeo

                MoparLeo NRA BENEFACTOR LEVEL LIFE MEMBER FBBO Gold Member

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                115° ambient and 38° at the vent @ idle . No air through the condenser ?Wow !? A 77 ° drop is amazing. 57 % temp change.
                Almost unbelievable. I always thought when doing customer a/c services that a 20% drop in vent vs. ambient was normal.
                What exactly do your fans do at speeds above 45 mph ?

                Maybe heat stroke/exhaustion?
                 
              • diesel_lv

                diesel_lv Well-Known Member

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                That was last yr w the electric fans. Unfortunately on the highway, it would overheat. W the 19" 11 blade mechanical fan, I'm hoping for the same at idle. So far at 110° ambient it has. On the interstate w mechanical I'm at 176-184 cruising at 70mph in 110°. Again, next week should be the real test. Most modern a/c systems shut off w a certain high or low side pressure, not sure which. Definitely not an a/c tech. From what I was told, my system has a thermostat to shut off compressor when evaporator hits 34°. I'm definitely happy w it so far.
                 
              • dodgeboy440

                dodgeboy440 FBBO Gold Member FBBO Gold Member

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                Welcome to Las Vegas NV !
                Not as Zkrazy As It Sounds !!
                Try doing anything outside in that heat ….
                The Asphalt Is over 150 degrees!

                B3B77FA3-3E9C-43D2-8F5C-3A918E7BB3C6.jpeg
                 
              • Ranger16

                Ranger16 Well-Known Member

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                I know people will disagree, but I swear by that combo.
                 
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                • dodgeboy440

                  dodgeboy440 FBBO Gold Member FBBO Gold Member

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                  Whatever works !!
                   
                • diesel_lv

                  diesel_lv Well-Known Member

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                  Generally 5-10° hotter here in Fort Mohave. Lived in Vegas 23 yrs.
                   
                • diesel_lv

                  diesel_lv Well-Known Member

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                  I'd love to have a fan clutch too but w the serpentine setup there is no room. I know it'll wear out my water pump shaft/seal sooner.
                   
                • dodgeboy440

                  dodgeboy440 FBBO Gold Member FBBO Gold Member

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                  10-4 to that !!
                  It’s “ Death Valley “ , lite…
                   
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                  • SgtSuperbird

                    SgtSuperbird Well-Known Member

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                    I'm retired, own most everything, live on the St Clair River, and I'll be on my fishing boat today - in 86° weather - and that's pushing it! I'd literally melt away in 100°+ "dry" heat!
                     
                  • diesel_lv

                    diesel_lv Well-Known Member

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                    I "visited" Wisconsin 2-1/2 yrs ago during the polar vortex. -50° . I spent 23yrs in the Army in all conditions, rode a motorcycle in Las Vegas for a living for 18 yrs, but -50°, no thanks. Heat is miserable, Cold hurts!!!
                     
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                    • diesel_lv

                      diesel_lv Well-Known Member

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                      Here's this week's temps. I'll be taking her out around 3 today to see how she does. Engine temp, a/c, stop n go n highway. Will update later. Screenshot_20210615-110924_The Weather Channel.jpg
                       
                    • SgtSuperbird

                      SgtSuperbird Well-Known Member

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                      That's just silly.
                       
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