I wonder what kind of operating temperature is normal for a automatic transmission.. I'm running a 4500 converter with my tranny and the tranny temperature went up to 210 after driving the Vette a little harder today...
Is 210 degrees still acceptable or is it too hot?? What temperature is the tranny supposed to run?

 

BowTie asked me to reroute my cooling lines away from the headers because the gauge read 190 after an hour of town driving. They said to get it under 180 for the warranty. I have their 200r4.

 

My cooling lines are as far away from the headers as I could possible route them.... I'm pretty sure that it has to do with my high stall none-lockup converter...

 

I drove the car earlier for 15 miles at low RPMs and the tranny temperature went up to 190 degrees where it stayed for most of the trip.
On the way back, I drove the car a little harder and the temperature went up to 210 and stayed there until I got home.. Drove about 3 miles with the transmission temperature at 210 degres...

 

GS, I hate to say this....BUT, I think you will have to route your tranny through an old Room Air Conditioner condensor or evaporator coil out of a junkyard, they typically have much more cooling area than ANY ATF cooler I have seen, the lines should be hooked up in the coil set to run two parallel 3/8 copper lines....
this to be put in front of the radiator, you may need put the tranny fluid throug the radiator cooling tank first, then throug the old a/c coils, then back to the tranny, somehow I think you allready have a ATF cooler in that circuit now....just needs be much LARGER....

GENE

 

Get a DEEP pan and A B&M cooler, don't run it thru the radiator. I will guarantee your temp will be reduced significantly.

 

Couldn't run it through the radiator anyways because my radiator is a manual tranny radiator and has no tank for tranny lines. I'm already using a B&M Supercooler... I'll go with a deeper pan!

 

If it doesnt go past 230 your fine.Tran fluid tends to be hotter than your cooling system.210 isnt going to hurt it.You should change your fluid every year.I change mine every 3months just to inspect everything.

 

I run a 10x15 cooler mounted in front of the radiater and have no internal radiater trans cooler. The TCI temp gauge shows 160-170 most of the time. I've seen 190 in 95 degree weather after pulling some serious hills,and I've seen where the guage didn't even register if the outside temps were freezing.I run the BTO 2200 stall,and have been told by many tranny builders not to run a high stall converter on the street.
Race car.....different story.

 

I can't mount anything in front of my radiator because of the design of my tilt front

 

mount the oil cooler a good distance away from the rad, yours is probably zip tied to it right? I experimented witht hat a couple of years ago and there was a 30-40 degree difference between the 2 mounting positions. I had mine as low as 150/160 at high speeds.

This is not the way to do it:

 

I wish that I could mount it like that, but I can't put anything in front of the cooler because of the tilt front.. Anything mounted in front of the radiator would have to be mounted in front of the outter radiator support which is part of the tilting front.

 

A solution may be to mount the cooler in the rear, won't make a lot of difference in terms of longer liens and such. You could then use a box on the cooler to force air to it.

 

http://www.findarticles.com/p/articl...23/ai_n8688053

 

Interesting article!!

 

Here's a pic of my cooler setup:



The part of the transmission support that the dual fans are mounted on is actually a structural part of the tilt front... I'm actualy thinking in removing the dual Flex-a-Lite fans and installing a 16 inch Permacool 2950 cfm fan on the side of the tranny cooler... That should reduced coolant and transmission temperature... That way, one side of the radiator will be cooled by my 14" 2950 cfm Permacool fan and the other side + tranny cooler by another 16" 2950 cfm Permacool fan.. I'll be moving well over 5000 cfm through my radiator if both fans are on... Right now, the shrough of the dual Flex-a-Lite fans actually blocks airflow when they aren't on... The shroudless Permacool should make a difference.. At least I hope so...

 

Running a fan on both sides is a bad idea. I have seen it done but you loose a lot of air flow by each fan cancelling out each other. Run two 14 inch on the back for max airflow.Where I see your problem is you have no fan pulling air thru your tranny cooler.That will cause instant heat and it will never cool.You need airflow at low speeds or you will heat up badly.Highspeed is not a problem cause you have lots of airflow no matter where you mount it. Mine needed to be mounted downwards to slow down the flow going thru the cooler to pull heat away. I am probably going to run another cooler same size just to be symetrical even thou its not needed for cooling.Like I said your problem is airflow.If you mount the two fans in the back and have no room for the cooler in the front get an aux fan mounted on the cooler and relocate it maybe off the frame rail by the lower fender.If your street driving this car you definately want to get the heat down,I was thinking drag racing at those other posted temps.200 would be as high as I would want to see for long periods.If your using all them fans at the same time your cavitating the air and loosing flow. Your also blowing hot air right off your radiator into the tranny cooler.Needs to be in front of radiator. . If you can mount it in front and put the two 14inch steel fans in back you should be good.

 

You will overheat the tranny very quickly if you use a trans brake. Normal temps should be below 180. Using a trans brake for 10 seconds will push temps to over 230 normally. You will probably need a dedicated trans cooler fan and be sure to let the other guy stage first.
Oh, and leave the torque converter dust cover off. That will help the converter run cooler.

 

The main problem is that I can't mount a fan on the tranny cooler because it's going to hit the right a-arm... Space on the radiator is my main problem. I had to go with a 14 inch Permacool so that it would fit on the radiator with the cooler in place.. There's no space to attach any more puller fans. I also can't move the tranny cooler to any other location around the radiator due to lack of space...
I think that the best thing to do would be have the 14 inch fan as it is right now as puller on the left side of the radiator and the 16 inch fan in front of the radiator and tranny cooler on the right side... That's the only solution that I can think of that the space allows..

 

I'm running a hydraulic and not electric transbrake. Don't know if this makes a difference for cooling...