Auto Trans Cooler Options

[Akirad1]

couldnt find anything about this, so if there is one please point me to it and sorry for the repost if it is one
this is just a ? does the 6gc come with one, how they install on the car easy difficult, and are they worth it for a car that you dont do any heavy loading in.
thanks for any input

[Taskbot]

I'm just taking a shot in the dark here but I am going to assume... no its not worth it.

But I am pretty interested if they make one as well. More of a curiosity thing though.

This post has been edited by Taskbot: Aug 22, 2008 - 1:19 PM

[playr158]

no you do not need an auto tranny cooler. There are other things that would provide more useful for the $

[Akirad1]

i wasnt really gonna get one i was just curious there is one on andys auto sport but its a universial one made by flexalite

[Taskbot]

yeah I agree. Its all about curiousity, even if it makes you go "why would someone put that on their car" in your head.

[Akirad1]

i mean i would prolly be gould if you had a towing set up on your car and you towed stuff alot with it, but i think its more use full for a truck or suv

[Bitter]

it'll help out in stop and go traffic on hot days. its not going to harm anything, its not very expensive to add, and its pretty easy to install. if anything, it may help extend the life of the transmission and the fluid.

[Batman722]

doesnt you car already have a tranny cooler ?
there are lines that come off the auto tranny and go to a bottom tank on the radiator, that is the tranny cooler.

Stef's 97 ST did and a 95 GT I know of does...

are you sure you don't have one already ?

This post has been edited by Batman722: Aug 22, 2008 - 10:16 PM

[Bitter]

yes, that is a cooler of sorts. more like a heat exchanger. it warms and cools the fluid. however, as engine temps get high so do trans fluid temps. adding another cooler in series can be beneficial to lower fluid temps to about 180F where as your engine coolant is around 210F. trans fluid lasts much longer at 160-180F than it does above 200F.

the cooler wont hurt, is cheap, and is quick to install.

[presure2]

yes, that is a cooler of sorts. more like a heat exchanger. it warms and cools the fluid. however, as engine temps get high so do trans fluid temps. adding another cooler in series can be beneficial to lower fluid temps to about 180F where as your engine coolant is around 210F. trans fluid lasts much longer at 160-180F than it does above 200F.

the cooler wont hurt, is cheap, and is quick to install.

and that will do what exactly on a 5s?
nothing.
i REMOVED mine, and capped the hoses.
it'd just be a waste of money.
put it elsewhere. like mantinence.

when was the last time ya did a full tune up?

[Akirad1]

well i did take it to get a 18 point check up when i first got it 3 months ago but ive put alot of miles on it so i think it might be time for another check up just incase

[Bitter]

yes, that is a cooler of sorts. more like a heat exchanger. it warms and cools the fluid. however, as engine temps get high so do trans fluid temps. adding another cooler in series can be beneficial to lower fluid temps to about 180F where as your engine coolant is around 210F. trans fluid lasts much longer at 160-180F than it does above 200F.

the cooler wont hurt, is cheap, and is quick to install.

and that will do what exactly on a 5s?
nothing.
i REMOVED mine, and capped the hoses.
it'd just be a waste of money.
put it elsewhere. like mantinence.

when was the last time ya did a full tune up?

uh it'll help cool the trans fluid is what it'll do you have a manual transmission so uh DUH you can just cap the lines . when you're beating on an automatic, driving the car hard, forcing downshifts at high rpm and high rpm upshifts or just stuck in traffic moving slow with the ac on full blast, that trans fluid gets HOT. hot enough to ruin the trans all at once? no. but when it gets hot its viscosity gets outside the optimal range for fast crisp shifting without slippage. btw, all auto transmissions slip some. its in the design, because if they bit as hard as they could every single shift there would be cracked cases, broken gear teeth, damaged drums and sun shells all the time. however, when the fluid gets hot hot it gets thinner, the thinner fluid just does not shift as well, you get a little more slip and a little more wear. over time that does add up.

not to mention the affect of heat on the additive package in transmission fluid.

a universal tube and fin cooler is a whopping $30.

[Akirad1]

well i sit in traffic alot im gonna consider this then

[presure2]

yes, that is a cooler of sorts. more like a heat exchanger. it warms and cools the fluid. however, as engine temps get high so do trans fluid temps. adding another cooler in series can be beneficial to lower fluid temps to about 180F where as your engine coolant is around 210F. trans fluid lasts much longer at 160-180F than it does above 200F.

the cooler wont hurt, is cheap, and is quick to install.

and that will do what exactly on a 5s?
nothing.
i REMOVED mine, and capped the hoses.
it'd just be a waste of money.
put it elsewhere. like mantinence.

when was the last time ya did a full tune up?

uh it'll help cool the trans fluid is what it'll do you have a manual transmission so uh DUH you can just cap the lines . when you're beating on an automatic, driving the car hard, forcing downshifts at high rpm and high rpm upshifts or just stuck in traffic moving slow with the ac on full blast, that trans fluid gets HOT. hot enough to ruin the trans all at once? no. but when it gets hot its viscosity gets outside the optimal range for fast crisp shifting without slippage. btw, all auto transmissions slip some. its in the design, because if they bit as hard as they could every single shift there would be cracked cases, broken gear teeth, damaged drums and sun shells all the time. however, when the fluid gets hot hot it gets thinner, the thinner fluid just does not shift as well, you get a little more slip and a little more wear. over time that does add up.

not to mention the affect of heat on the additive package in transmission fluid.

a universal tube and fin cooler is a whopping $30.

umm, no, my WIFES car is a manual, mine is auto.
my point is, there is no point in installing an aftermarket cooler, when toyota designed one into the car that works perfectly.
so yourself.

[Bitter]

it doesnt work perfectly. coolant temp rises, trans temp rises. optimal trans temp is about 20-30F below optimal engine temp. trans gets ran a little hotter all the time to save a few dollars on the cost of an aux trans cooler from the factory. if these coolers are soo perfect then why do cars/trucks with towing packages get aux trans coolers? towing is hard on the trans, and so is driving the car hard or adding power to the car. more power=more friction=more heat.

As a rule of thumb, every 20 degree increase in operating temperature above 175 degrees F. cuts the life of the fluid in half!

At 195 degrees F., for instance, fluid life is reduced to 50,000 miles. At 220 degrees, which is commonly encountered in many transmissions, the fluid is only good for about 25,000 miles. At 240 degrees F., the fluid won't go much over 10,000 miles. Add another 20 degrees, and life expectancy drops to 5,000 miles. Go to 295 or 300 degrees F., and 1,000 to 1,500 miles is about all you'll get before the transmission burns up.

If you think this is propaganda put forth by the suppliers of ATF to sell more fluid, think again. According to the Automatic Transmission Rebuilders Association, 90% of ALL transmission failures are caused by overheating. And most of these can be blamed on worn out fluid that should have been replaced.

On most vehicles, the automatic transmission fluid is cooled by a small heat exchanger inside the bottom or end tank of the radiator. Hot ATF from the transmission circulates through a short loop of pipe and is thus "cooled." Cooling is a relative term here, however, because the radiator itself may be running at anywhere from 180 to 220 degrees F.!

Tests have shown that the typical original equipment oil cooler is marginal at best. ATF that enters the radiator cooler at 300 degrees F. leaves at 240 to 270 degrees F., which is only a 10 to 20% drop in temperature, and is nowhere good enough for extended fluid life.

This post has been edited by Bitter: Aug 23, 2008 - 4:45 PM

[presure2]

it doesnt work perfectly. coolant temp rises, trans temp rises. optimal trans temp is about 20-30F below optimal engine temp. trans gets ran a little hotter all the time to save a few dollars on the cost of an aux trans cooler from the factory. if these coolers are soo perfect then why do cars/trucks with towing packages get aux trans coolers? towing is hard on the trans, and so is driving the car hard or adding power to the car. more power=more friction=more heat.

As a rule of thumb, every 20 degree increase in operating temperature above 175 degrees F. cuts the life of the fluid in half!

At 195 degrees F., for instance, fluid life is reduced to 50,000 miles. At 220 degrees, which is commonly encountered in many transmissions, the fluid is only good for about 25,000 miles. At 240 degrees F., the fluid won't go much over 10,000 miles. Add another 20 degrees, and life expectancy drops to 5,000 miles. Go to 295 or 300 degrees F., and 1,000 to 1,500 miles is about all you'll get before the transmission burns up.

If you think this is propaganda put forth by the suppliers of ATF to sell more fluid, think again. According to the Automatic Transmission Rebuilders Association, 90% of ALL transmission failures are caused by overheating. And most of these can be blamed on worn out fluid that should have been replaced.

On most vehicles, the automatic transmission fluid is cooled by a small heat exchanger inside the bottom or end tank of the radiator. Hot ATF from the transmission circulates through a short loop of pipe and is thus "cooled." Cooling is a relative term here, however, because the radiator itself may be running at anywhere from 180 to 220 degrees F.!

Tests have shown that the typical original equipment oil cooler is marginal at best. ATF that enters the radiator cooler at 300 degrees F. leaves at 240 to 270 degrees F., which is only a 10 to 20% drop in temperature, and is nowhere good enough for extended fluid life.

because theyre TOWING.
i dont see any of these 17-21yr old kids towing anything with theyre celicas.
and driving hard, with an auto trans, be it with a 5s, or 7a, is kinda an oxymoron IMO. lmao

[Bitter]

not really, tearing around a curvy road the trans up and downshifting alot. autocrossing or road racing with an auto isnt unheard of or uncommon.


you yourself have an auto mated to a turbocharged engine, if thats not beating on it then i dont what you'd call driving an auto hard.

[presure2]

not really, tearing around a curvy road the trans up and downshifting alot. autocrossing or road racing with an auto isnt unheard of or uncommon.


you yourself have an auto mated to a turbocharged engine, if thats not beating on it then i dont what you'd call driving an auto hard.

come on, who do you know that autox's an AUTOMATIC celica?
please.

and, again, i do not have a turbocharged celica, that would be the wifes. manual, turbo.
mine = auto, and super slow.

[Bitter]

an auto celica, no i dont know anyone (but i dont know but 2 or 3 celica owners). auto mitsu's, i know MANY and everyone of them that added a trans cooler felt it was very beneficial.

[Akirad1]

bitter and pressure it cool just wondering ya know lets not get into a big arguement over it lol