Transmission oil cooler

[WPS 73 Bronco]

i’m now confused about how the trans cooler works. My application is the 6L80E. I have two ports on the side of the tranny. My plan was to just plum the two lines into my Mishmoto 13 pass cooler. I’m in Houston so I don‘t have to worry about cold temps, hot ones instead.

Mine is remote mounted, therefore I planned to tie the fan wiring into the same circuit as the radiator fan. That way they both come on at the same time.

Is that all I need to do, or is there a lot more to it?

 

[pbwcr]

Pretty much required to monitor trans temp.
Monitor stat for your cooler with a smart T gauge looking at the pan temp. Set the gauge to turn on a red light when T exceeds your preset temp.

 

[nvrstuk]

what pbwcr said... gauge or a BIG red light so you can't ignore it so you know what you've got before it quits. Red lights alert you much better than a guage ever will.

 

[ba123]

i’m now confused about how the trans cooler works. My application is the 6L80E. I have two ports on the side of the tranny. My plan was to just plum the two lines into my Mishmoto 13 pass cooler. I’m in Houston so I don‘t have to worry about cold temps, hot ones instead.

Mine is remote mounted, therefore I planned to tie the fan wiring into the same circuit as the radiator fan. That way they both come on at the same time.

Is that all I need to do, or is there a lot more to it?

yeah, don't use engine temp for trans temp fan.

Get something like this thermostat switch that simply turns ON at 180° and then off at like 165°. I'm sure there are others if you want different temps. This one just goes on the inlet of the remote cooler so the fans only kick on when the temp reaches that point.

 

[ntsqd]

My uber plan for all weather conditions is to use a BAT_Mocal or Perma-Cool T-Stat to by-pass the Aux cooler and route thru the radiator cooler* after the t-stat. I've yet to do that. I have all of the parts to do that, and to put a fan on the aux cooler for the trans in the 4rnnr, but it went down the road before that happened.

Can buy that adapter -6AN fitting as a stand-alone part. I did that for the 4rnnr pile of parts, and then went looking for a temperature switch that had something like a Delphi or Deutsch connector. I can't recall what I found or where I found it. Hella makes a lot of these sorts of temp. switches, just a matter of sorting thru the offerings to find one that does what you want.

One thing to be careful of, you don't want the sensing part of the switch obstructing the flow path. To achieve that may take some tricks with NPT fittings and a careful orientation of the assembly. Put the temp switch on the bottom of the line so that it doesn't trap air around it inside of any 'spacer fittings' and cause it to not function correctly. I think that ideally the bottom flat of the switch should be tangent to the interior surface of the AN adapter fitting.

*I am pretty fixed on using the radiator cooler to moderate the ATF temp and keep it from wild temperature swings. I see why a race rig may not want to do that, but I'm not building one of those. And I can see where if the radiator size is already marginal where you might not want to route thru a radiator cooler because you are dumping some extra heat into the engine cooling system.

 

[ba123]

I think that could be an ideal way to do it if you have a high range of temps from cold to normal/hot.

I love the idea. I know I don’t need it, but I love it.

Who knows though…I might install this remote cooler and then decide my trans runs too cool and if it does, then I’ll go that way as well.

 

[ntsqd]

snip......

I love the idea. I know I don’t need it, but I love it.

Which is why I've yet to implement. The 4rnnr needed it only because of my lead foot. Driven sanely it was fine stock.

I wouldn't tie the trans cooler fans to the engine fans either. Leave them separate.