Transmission cooler, out front, or in the middle?

[lwillson]

So I have the nice large transmission cooler from my 06, but I don't know if it should go in front of the intercooler.

I was thinking

From grille to fan
1 intercooler
2 trans cooler
3 AC rad
4 Coolant rad

I don't have a lot of room between the intercooler and the grille, and I figured the intercooler should be the first anyways.

Also, what's the purpose of running the transmission line through the coolant rad first before the trans cooler rad?

Thanks in advance for any input

[ol_Blue97]

ive seen on here from others and cary evey told me.... remove it from the colant radiator and run direstly into the massive 06 trans cooler and it will cool more then you can heat it... also never stack coolers and if you run the one in the radiator thats what your essiancilly doing... just what ive seen and picked up from a few people

[351fifty]

Kinda like heating it up to go to the cooler and back to the trans.

[Chop]

The logic of using the radiator cooler and the add on cooler is when operating your truck in reverse you still have cooling.Imagine heavy use in reverse without airflow across the cooler,tranny would become hot fairly quickly.

[Ryan Rønning]

In my opinion I believe that the trans cooler should be out front and that is where I have relocated it on my last truck. The new one I have not messed with.

[alberta 7.3]

I'd leave the trans cooler in the rad connected in a northern climate. I would think it would help heat the fluid when it's bitterly cold out. Also the liquid-to-liquid heat exchange is more efficient, so when the trans fluid is hotter than the radiator, it will pre-cool the fluid before it hits the liquid-to-air cooler.

[lwillson]

My coolant always seems to be around 85 degrees C, and my transmission has hit 100 degrees C (yeah, I know , badness)

I think the intercooler should be the first one, since you want the coolest air going into the engine. There should be enough fan pull to cool everything behind the intercooler.

Now to see if I can adapt my 06 transmission hard lines to my E40D. They are a larger steel line, and also have the factory transmission spin on filter on it. I figure it cant hurt to go larger lines, and then I wont have to adapt to go to the transmission cooler.

[STROKED_NY_023]

I bypassed my rad all together. Didn't want any gunk from the rad going into my $4k trans. I am not intercooled yet but IMO i would want the trans cooler first. You can have all the good air you want from the IC but if you smoke your trans i wont matter will it?? I was able to adapt my 6.0 cooler to my steel lines with brass fittings and compressions. No leaks...

[HVAC SuperTech]

Originally Posted by lwillson

My coolant always seems to be around 85 degrees C, and my transmission has hit 100 degrees C (yeah, I know , badness)

I think the intercooler should be the first one, since you want the coolest air going into the engine. There should be enough fan pull to cool everything behind the intercooler.

Now to see if I can adapt my 06 transmission hard lines to my E40D. They are a larger steel line, and also have the factory transmission spin on filter on it. I figure it cant hurt to go larger lines, and then I wont have to adapt to go to the transmission cooler.

the 6.0 coolers have a 1/2 inch line used on them. buy the 1/2 inch line and just cut your steel lines and use hose clamps to secure it.

also, mount the cooler in the factory position. that is with the ends of the cooler where the lines attach to go in the downward position. I put mine in front of the rad and in front of the intercooler.

[lwillson]

How much does the intercooler actually drop air temperature? What is the air temp coming from the turbo on these engines? This is where I have my dilemma.

for example, if the air leaving the turbo was 40degrees, and it cooled the intake air entering the engine to 20 degrees, its not going to cool as much if there is a transmission cooler at 80 degrees trying to cool down to 40 degrees in front of it.

and... I will have to try and space my intercooler back farther if it goes in front, as I dont have enough room between the grille and the intercooler now.