Eric M.
1/2 ton status
Beast388 said:
What was up with your fan? If your engine is screamin', your fan should be sucking enough air through it to keep things cool.
Eric M.
CK5
Register an account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members.
prefered mode of hooking up tranny cooler
- Thread starter surpip
- Start date
What was up with your fan? If your engine is screamin', your fan should be sucking enough air through it to keep things cool.
Eric M.
I'm afraid I've got to disagree with most every one of you.
You don't want it to get too hot, but you also need to get it hot enough at a minimum to boil out any condensed water. IIRC, 180-200* or so is a good temp over all.
Running it through the aux cooler, then into the radiator is the best scenario. The aux cooler helps shed extra heat before hitting the radiator, then the radiator fluid-to-fluid pulls out any remaining heat, or may even add some back (cooling the motor) depending on ambient temp and usage. But since the coolant in the radiator should rarely be outside the proper temp range for the trans, it's a good stabilizer for the system. If the water temp is much over 200, you have other issues that need to be dealt with, and if the trans fluid is still over the water temp *for any reason* after coming out of the aux cooler the radiator will pull out more heat. Assuming a proper fan shroud, this also eliminates "not enough air flow" problems some have mentioned.
Frankly, for a general purpose year round vehicle, splitting the systems has a number of problems including potential temps too low AND too high. There is just no good reason to split the system, so why do it? All you are after is helping get rid of excess heat build up caused by long term slipping the converter off-road, or even on road when dealing with big tires combined with often too high gearing.
You don't want it to get too hot, but you also need to get it hot enough at a minimum to boil out any condensed water. IIRC, 180-200* or so is a good temp over all.
Running it through the aux cooler, then into the radiator is the best scenario. The aux cooler helps shed extra heat before hitting the radiator, then the radiator fluid-to-fluid pulls out any remaining heat, or may even add some back (cooling the motor) depending on ambient temp and usage. But since the coolant in the radiator should rarely be outside the proper temp range for the trans, it's a good stabilizer for the system. If the water temp is much over 200, you have other issues that need to be dealt with, and if the trans fluid is still over the water temp *for any reason* after coming out of the aux cooler the radiator will pull out more heat. Assuming a proper fan shroud, this also eliminates "not enough air flow" problems some have mentioned.
Frankly, for a general purpose year round vehicle, splitting the systems has a number of problems including potential temps too low AND too high. There is just no good reason to split the system, so why do it? All you are after is helping get rid of excess heat build up caused by long term slipping the converter off-road, or even on road when dealing with big tires combined with often too high gearing.
Beast388
1/2 ton status
Eric M. said:
At the time I had an electric fan right in the middle of the radiator. The tranny cooler was off to the side, so no air was being drawn through the cooler while sitting still or little movement.
I went back to the stock fan/fan shroud set up and plumbed the lines to go through the rad and then the cooler. So even if I am not moving, I am getting the cooling from the radiator.
On the road or on the trail, the temps are nice and constant at 200*.
What jek & BD said. Mine is thru the cooler and then the radiator. My 11" x 11" cooler came from Coleman and as it happens they're having a sale on them right now: http://www.colemanracing.com/catalo...d=363&osCsid=99f9606b8d33d2a67d83cddf6a7156bc
A truck I drove for work once blew a cooler line, north of Springfield Ill., in Feb. The ATF on the ground looked like red wax. that was enough to convince me that it needed to go thru the radiator if it were going to be driven in cold country.
A truck I drove for work once blew a cooler line, north of Springfield Ill., in Feb. The ATF on the ground looked like red wax. that was enough to convince me that it needed to go thru the radiator if it were going to be driven in cold country.
theperfectgarage
1/2 ton status
I have always believed the fluid should be not too hot AND not cold for best operation which is why I plumb coolers like that. Thanks for a excellent explanation. You put it far better then I.
