Putting trans cooler AFTER the radiator.

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06-04-2009, 12:59 PM
SUX2BU

Putting trans cooler AFTER the radiator.

OK, so I'm thinking about putting my tru cool 40,000 cooler i just got ($110 shipped with bypass valve) AFTER my radiator. My stock set up keeps my trans temps pretty cool highest i have seen stop and go driving around is about 195 in 95* Texas heat. Not too bad. I have read of a few people running very low tranny temps with this cooler so i was thinking of putting it afterf my radiator, right before the fans, so my radiator can get the cooler air and keep my engine temps lower. Will also make my A/C blow a little colder.
I'm also thinking about bypassing the stock tranny and oil coolers in the radiator so only coolant is going thru there. Wanted to use my stock external tranny cooler for my oil and run that after the radiator as well.
Ideally I'd like everything to run at about 180*.
What do you guys think?
06-04-2009, 01:48 PM
George C

after rad will give you the most.
06-04-2009, 02:52 PM
SUX2BU

Quote:

Originally Posted by Quik

after rad will give you the most.

The most what?
06-04-2009, 02:56 PM
SUX2BU

I just realized my thread title is a bit misleading. I mean put the tranny cooler between the radiator and e fans (air flow wise), not inline with the radiator (fluid flow wise). I too am going to bypass the radiator intank coolers.
My converter isn't too big. Its a Yank PT3200, but it's in a 6,000 lb AWD tank that see's 90% stop and go driving.
06-04-2009, 04:50 PM
RedHeartbeat

I would highly recommend against doing either one. Put it up front before the rad so it gets the best air flow. Plumb it inline with the stock cooler in the radiator because if you ever need rapid trans oil cooling the rad cooler works like 40 times faster than air ever will. Having it after means the fluid will cool below water temp as it passes through the 2nd cooler.
06-04-2009, 10:46 PM
GasGuzzler

In airflow it should be in front. In fluid flow it should be before the fluid gets to the stock cooler that should not be bypassed. You should already have two trans coolers...one in th e radiator and one in front. If the one in front is too small for the stall, put a bigger one there and keep the airflow and fluid flow order the same.
06-05-2009, 12:48 AM
SUX2BU

Quote:

Originally Posted by GasGuzzler

In airflow it should be in front. In fluid flow it should be before the fluid gets to the stock cooler that should not be bypassed. You should already have two trans coolers...one in th e radiator and one in front. If the one in front is too small for the stall, put a bigger one there and keep the airflow and fluid flow order the same.

Yeah it does have two. Just got the big one to be safe during the summer.