Tranmission Cooler Mounting - Toyota Nation Forum : Toyota Car and Truck Forums

WhiteRabbit · 07-31-2007, 12:11 PM

I will be installing this cooler onto my car:

http://www.optionsauto.com/prodinfo.asp?number=BM-70264

how should the nipples be oriented? so they are on top or on the side? which should be the inlet and which should be the outlet? what's best recommended?

thx

***toyomoho*** · 07-31-2007, 12:30 PM

Don’t think it matters as to nipple orientation or inlet/outlet. Most folks plumb the unit in after the cars stock cooler. Place in front of the radiator-A/C condenser to get airflow.

There was a post with installation photos not long ago, do a TN history search.

Venom_5 · 07-31-2007, 12:41 PM

my nipples always point up

WhiteRabbit · 07-31-2007, 12:52 PM

^haha

ive read alot of different places and they say not to mount down atleast

if mounting to the side, someone said the inlet goes on the bottom

iono

Stillrunning · 07-31-2007, 02:29 PM

I would mount with npples down or on side with inlet on top. My reasoning is I wouldn't want any way for trans. dirt to accumulate in the cooling tubes and settle there creating a blockage. Why do you think you need a trans cooler?

Venom_5 · 07-31-2007, 02:32 PM

i was wondering that too ... our tranny's dont typically overheat, so whyd u get a tranny cooler?

oh, and i would mount it with the TITTAYS facing up

WhiteRabbit · 07-31-2007, 02:35 PM

any car will benefit from a trans cooler

plus i will be doing long distance driving pretty frequently soon

Stillrunning · 07-31-2007, 05:34 PM

Transmissions overheat when they are loaded, that is towing, up hill, or idling in traffic in gear, not moving very much, not when you are moving well on the highway, long distance or not. In winter you may overcool the trans where it won't shift properly.

WhiteRabbit · 07-31-2007, 05:42 PM

i have a temp gauge to keep an eye on everything and adjust as necessary

i dont think overcooling should be a problem though, just let the engine warm up first. supposed to do that anyway in the winter

Stillrunning · 08-01-2007, 07:08 AM

Really what you are talking about is the life of the trans fluid based on temperature. It seems that temps around 175F provide about 100K fluid life, higher temps shorten the interval between fluid changes. Synthetic fluid has a higher tolerance for heat and lasts longer. If you monitor the condition of your fluid and change it regularily you should have no problems. What temp does a stock Camry trans operate at? As a test I would install the gauge first and see what temp range the stock setup operates in, then install the cooler and see the new operating temperature. Install temp sensor at trans fluid outlet, before cooler.

WhiteRabbit · 08-01-2007, 08:16 AM

i already have the temp gauge in, short drives itll go to around 180. 200-220 if prolonged stop and go traffic. on highways 180-200.

Stillrunning · 08-01-2007, 08:46 AM

I'd be interested in the trans fluid temp with a cooler in prolonged stop and go traffic when little air flow is doing much cooling. Post back if you can as I'm interested in the change.

The 180-200 temps are probably in line with water temps and engine operating temperature as the fluid passes through the rad trans cooler. By the way I would never wait 100K before changing my trans fluid, 175 temp or not.

WhiteRabbit · 08-01-2007, 09:14 AM

ill update once i install it

***Eye8Pussies*** · 08-01-2007, 03:15 PM

it doesn't really matter how you install it....inlet top or bottom....there's more than enough pressure to get all the atf through it and back into the tranny itself regardless

and your temps sound about right to me- stuck in traffic- it can easily reach 210, but then it maxes out and stays around there. I would reach this temp stock, and even with my huge tranny cooler. But once installed, the tranny cooler would lower the temp to about 150 or so if not less when the car was in motion.

Keep an eye out on the temp during the winter though. Mine was much much too big for winter even on a boosted car, and I had to pretty much cover one entire side to have my tranny temp move anywhere after sitting around for a night (and in my garage at that!).

But again, you don't have much to worry about at all since you have a tranny temp gauge- just keep an eye on it

WhiteRabbit · 08-01-2007, 03:38 PM

they do sell thermostats to regulate the flow to the cooler that i may look into in the winter if it does overcool

whats should the min. temp be before it overcools?