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

[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