So I got a bet for you...

Heating, Cooling & AC

  1. Daliant

    Daliant Active Member

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    Both engines being identical and under the same load will produce the same amount of heat, both radiators being identical will remove the same amount of heat. The thermostat becomes irrelevant once it's open so if both cars start the run at 180* they will both be at the same temp at the end of the track with all things being equal between the 2 cars.
     
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    • khryslerkid

      khryslerkid FBBO Gold Member FBBO Gold Member

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      Both identical engines...
      giphy (3).gif
       
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      • KENTON

        KENTON Well-Known Member

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        the answer is too simple. But can anyone tell us why the chicken crossed the road? If a tree falls in the woods and no one's around, does it make a sound? Thats whats been bugging me for years.
         
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        • Ranger16

          Ranger16 Well-Known Member

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          I suppose Stant is not a good source either?
           
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          • WileERobby

            WileERobby Well-Known Member

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            And why wouldn't that be true ? Again, as I stated before, the thermostat sets the MINIMUM operating temperature. If the cooling system is operating efficiently and has ample capacity, it will set the coolant temperature at its specified temperatures. So, yes, the 180 will operate cooler than the 190, system permitting. They raised the thermostat temps for higher operating temperatures for emissions purposes.
             
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            • WileERobby

              WileERobby Well-Known Member

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              Yes, you're right it's misunderstood. The pressurization does indeed raise the boiling point, but you're not using water alone. The coolant additive also raises the boiling point above 212f. But the reason the boiling point needs to be raised is not for operating temp. If a water molecule is in contact with the metal surrounding the combustion chamber, it will immediately absorb heat and evaporate. Gas will not absorb heat like a liquid, so the boiling point must be raised to maintain the coolant as a liquid, to continually absorb heat. The combination of water (the best conductor of heat), coolant additive and pressurization, and continual movement of flow enables the liquid to absorb heat and maintain its state as a liquid.
               
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              • HT413

                HT413 Semi Pro Bowler

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                Have any of you ever seen a baby pidgin? Seriously, are pidgins born full size? Because I’ve never seen one.
                 
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                • Ranger16

                  Ranger16 Well-Known Member

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                  WOW! "Misunderstood" seems to be an understatement.
                   
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                  • khryslerkid

                    khryslerkid FBBO Gold Member FBBO Gold Member

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                    Baby pigeons are called squabs.
                    20171221_203243.jpg
                     
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                    • WileERobby

                      WileERobby Well-Known Member

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                      I thought you clean your ear with a squab.
                       
                    • mykers

                      mykers Well-Known Member

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                      Sorry for the late response guys...some family emergencies kept me away. Anyhow, I making my disclaimer now: I had to go back and get the answer from glen (old guy) because after trying to understand this I'm still pondering. What I mean by this is, it seems logical and counter-intuitive at the same time...errr, you be the judge!?! Remember, don't blame the messenger :BangHead:

                      Answer: It all goes back into the design of the motor. The intake and exhaust valves were located on opposite sides of the combustion chamber at 90 degrees to the cylinder bore axis, so separate individual rocker shaft assemblies (two on each head) were necessary to operate and control all sixteen Intake and Exhaust valves. It also centralized the spark plug location, making the flame travel shorter, thus more effective in lighting off the air/fuel mixture.

                      It also gave the combustion chamber, greater thermal efficiency. These engines run cooler because of having a greater surface for heat transfer along with large cooling passages, which negates the existence of a running a thermostat or having one in under optimum temperatures. It’s the outside temperature of the engine that is key to this story...meaning under the hood before and outside the hood/in front of radiator.

                      And I know what your thinking mike…Sorry, but the coolant "flowing too fast" is a myth. The thermostats job is NOT to slow down the coolant so that it can cool better. Basic thermodynamics would have us know that the heat transfer is greater when the temperature delta is greatest (i.e. the more there is a temperature difference, the greater rate the heat can be transferred between the two surfaces). I am sure that there will be many stories of how this is not true, but you should probably argue with the engineers that designed this engine if you don't believe it. Why would you own an engine designed by engineers that you don't believe anyway?

                      END
                      Remember...I had to record all of this! I am not a hemi guy. I just switched gears from an Oldsmo guy to a Mopar guy. I'm happy I did! I love my 70 roady, but this makes my head hurt. Plus, maybe he had a few wires crossed. Either way, maybe its good knowledge or a laught...you be the judge :bs_flag:? :thumbsup:?:mad:?:BangHead:?
                       
                    • mykers

                      mykers Well-Known Member

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                      I think the point he was trying to drive home was "It also gave the combustion chamber, greater thermal efficiency." the fact that one had a thermy and one didn't is irrelevant. That's my take anyways.
                       
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                      • moparwacko

                        moparwacko MASSIVE GOLD MEMBER FBBO Gold Member

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                        So, if my lava lamp had hemispherical design would it produce larger or smaller blobs?
                        And would the said blobs then travel faster?
                        And would the said blobs travel in a swirl pattern?
                        Or would i need a "Magnum" design for that?
                         
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                        • khryslerkid

                          khryslerkid FBBO Gold Member FBBO Gold Member

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                          Did Glen run a lot of methane back in the day?
                           
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                          • HT413

                            HT413 Semi Pro Bowler

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                            Hey guys, what oil do ya run? I ran into an old timer that said West Texas Intermediate was all he’d run... right off the derrick.

                            :elmer::steering:
                             
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                            • mopar 3 B

                              mopar 3 B Well-Known Member

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                              The engines were probably never started and the cars were pushed across the finish line.
                              Stock factory hemis never came with twin cams.
                              Can poke all kinds of holes here.
                               
                            • Roadcuda

                              Roadcuda Well-Known Member

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                              Interesting discussion. But in reality how often do engines built to the same specs, in cars built the same way, run identical times. To me there are too many variables in drivers, the cars, track lane conditions, and weather conditions that would affect the times. Now with that answered, why did the chicken cross the road? To prove to the squirrels it could be done of course.
                               
                              Last edited: Dec 28, 2017
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                              • not so famous bob

                                not so famous bob Well-Known Member

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                                yeah, their ugly as hell !!LOL
                                 
                              • Fran Blacker

                                Fran Blacker FBBO Gold Member FBBO Gold Member

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                                Another "Which came first the chicken or the egg" theory .
                                 
                              • meskip

                                meskip Active Member

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                                I'll go with the theory that the story teller ran to much methane when young.
                                 
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