Transmission cooler location and ???

Transmission and Drivetrain Tech

  1. Kent mosby

    Kent mosby FABO Gold Member FABO Gold Member

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    I will be using a 727 behind my BB in my Scamp. My radiator does not have a trans. cooler and I will be using a remote cooler. If I put it in front of the radiator, will it reduce the radiator cooling too much? If I locate it out of the way of the flow of air through the radiator will I need an accessory fan? Do the units with an integrated fan come with an integrated temp switch/relay or do we need to install one some where. I first saw about remote location on AndyF's Duster Project. What are the locations that are preferred? Any make and model recommended??
     
  2. greg ducato

    greg ducato FABO Gold Member FABO Gold Member

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    Use the largest stacked plate design cooler you can fit to the front of the car where it will receive sufficient airflow, especially with a higher stall speed than stock torque converter. Mounting it over the radiator face will allow you to take advantage of the airflow the engine fan will provide at idle and low speed, it wont be enough of a hindrance to the radiator airflow to be of concern and once you are rolling the wind takes over. Not having an electric fan is one less draw on the electrical system and one less component to be concerned with or pay for.
     
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    • transman

      transman Well-Known Member

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      Just don't use the plastic straps they give you to mount it ON THE RAD. The added weight of the cooler(filled with oil) will eventually damage your rad. Radiator shops love guys who mount the coolers with through the radiator with the plastic mounting hardware.
       
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      • Kent mosby

        Kent mosby FABO Gold Member FABO Gold Member

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        @transman Thanks for the advice. Makes sense not to load the radiator. I can fab a proper mount easy enough.
         
      • Dusterdenovo

        Dusterdenovo Contentedly Old School

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        • Kent mosby

          Kent mosby FABO Gold Member FABO Gold Member

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        • Cope

          Cope Fusing with fire

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          Mine is under the driver side rocker, electric fan on a thermostat, -6 AN fittings and line.
          Autometer trans temp gauge.

          3,800 stall, runs nice and cool
           
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          • Lefty71

            Lefty71 Well-Known Member

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            Using the old condenser from an AC mounts perfectly and works well without damage to the radiator, because its the way the factory designed it to be, just a smidgen warmer fluid.
             
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            • TrailBeast

              TrailBeast Slightly Twisted Member

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              AND you might find that your engine runs cooler even though the trans cooler is in front of it because of having a separate cooler for the trans instead of inside a radiator.
              Seen it before a handful of times.
               
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              • Mike69cuda

                Mike69cuda 64 is the new 17 FABO Gold Member

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                I used to do the same thing back in the day when I didn’t have $$. Ac condensers make great transmission coolers.
                 
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                • SGBARRACUDA

                  SGBARRACUDA ROY FABO Gold Member

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                  I used a log type cooler mounted to the lower valance. This is the only picture I could find that shows it.

                  My 68 Barracuda-4.jpg
                   
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                  • famous bob

                    famous bob mopar misfit FABO Gold Member

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                    I have used the regular old coolers on everything , including the s/stock hemi belvedere with b-m J convertors for 14 yrs., not running thru the rad. , mounted in front of the rad. as far forward as u can get it , never had any problems.
                    I have my currant hotrod the same way , only running thru the rad . first then the cooler and back to the trans . I think it helps in winter weather , altho I dont drive it when its real cold or bad .
                    The stacked plate coolers everyone is recommending may be great , but not absolutely necessary . just my 2 cents---
                     
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                    • 383Scampman

                      383Scampman Well-Known Member

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                      B&M supercooler in front of the rad . Adapters to -6AN direct to trans with stainless braided high pressure hose . If you have headers put heat shield on hose as it passes by the pipes . mount the cooler to the car not the rad .
                       
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                      • transman

                        transman Well-Known Member

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                        AC condensors cool a gas, transmission coolers cool oil. JMHO
                         
                      • dgibby

                        dgibby Well-Known Member

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                        I used a piece of this across the front on the radiator and mounted a B&M super cooler. Made it easy to place and left a decent space between the radiator and trans cooler for circulation.

                        AA45E67D-AB1E-435B-8335-C589210D4E4C.jpeg
                         
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                        • Mike69cuda

                          Mike69cuda 64 is the new 17 FABO Gold Member

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                          Passing hot stuff though tubes with fins to make it cold stuff. What’s the difference....
                           
                        • khuebner250

                          khuebner250 Well-Known Member

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                          That's not entirely true. It enters the condenser as a high pressure vapor and condenses to a high pressure liquid, while still inside the condenser.
                           
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                          • transman

                            transman Well-Known Member

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                            That's true, but oil enters as oil and exits as oil.
                            Transmission oil coolers, either the plate style or a quality tube and fin style, have the ability to tumble the oil as it passes through the cooler to give the oil maximum exposure to the cooling surfaces of the cooler. It's called the "skin effect". Quality tube and fin coolers like those from Hayden have an insert in each of the tubes the oil passes through and the design of the plate cooler is such that the insert to tumble the oil is not required. Cheap transmission coolers do not have these inserts inside the tube or if they do the insert is only in the intake/outlet of the cooler(a marketing ploy??). I know this because I've cut various cheap coolers apart in the past. I don't know if ac coolers have these inserts in them or not, as I've never cut one in half. Again, JMHO and a lot of years in the transmission parts supply industry.
                             
                          • TrailBeast

                            TrailBeast Slightly Twisted Member

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                            An ice cube cools coffee and tea, but not oatmeal?

                            I know, I'm a smartass.LOL
                             
                          • transman

                            transman Well-Known Member

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                            :lol:
                            I know!
                             
                          • famous bob

                            famous bob mopar misfit FABO Gold Member

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                            More than just you , looking in a mirror . lol
                             
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