Transmission cooler location and ???

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Kent mosby

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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??
 
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.
 
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.
 
@transman Thanks for the advice. Makes sense not to load the radiator. I can fab a proper mount easy enough.
 
I installed a B&M Supercooler this year and am delighted with it. With 3000 stall and a crummy tube & fin piece 190* - 200* was the norm with almost zero recovery when moving. With the B&M unit, I run 150* - 160* in city traffic on hot days with a heavy foot. Once I get moving, it sheds heat like crazy and I have even seen the needle drop when idleing at a light.

I've read on FABO that you can't have too big a tranny cooler. I am inclined to agree.

1/2" Female NPT, -6AN fittings and hoses, through the rad first.

View attachment 1715369456
 
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
 
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.
 
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.

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

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.
 
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.

I used to do the same thing back in the day when I didn’t have $$. Ac condensers make great transmission coolers.
 
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
 
I used a log type cooler mounted to the lower valance. This is the only picture I could find that shows it.

View attachment 1715378604

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---
 
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 .
 
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
 
Passing hot stuff though tubes with fins to make it cold stuff. What’s the difference....
 
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.
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.
 
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
@Cope Do you happen to have a picture of your cooler setup. Any info as well. Time for me to set this up.
 
@Cope Do you happen to have a picture of your cooler setup. Any info as well. Time for me to set this up.
I recently installed an H7B plate type cooler into my street Duster with a 408. I ran -AN 6 lines from the transmission to the cooler, which comes with -AN6 male fittings. Mounted the cooler in front of the radiator and ran it with my 3000 stall PTC converter. In 90+* heat, the temp did not get above 170*. I mounted one side of the cooler close to where the radiator mounting bolts are and the other side has straps bolted to the middle support bracket. Cooler is solid and won't vibrate. The H7B cooler is made in Mexico and is the same design as much more expensive coolers that have a brand name. Do a search for the H7B. You won't be disappointed.

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