Im thinking about bypassing the radiator
with my tranny cooler. any pro's or cons?
I have a hayden 24,000 and a Autometer gauge plugged into the transmission port. Im in california where it gets hot and lots of traffic. Currently Im running 210 on the freeway.

 

Use both, more cooling. Thats what I think most of do.

 

Def. need to cool through the radiator. I have a smaller tranny cooler and everything helps. Why turn down free cooling?

 

I ran mine through the radiator too.

Like what was stated before it is free coolong, and since heat is the main enemy of transmissions, why not?

 

It would be neat to see a comparison of keeping it routed through the radiator vs. not. Since you have a gauge, why not route it through the radiator first and see how the temps are and then route it through the cooler only and see what the difference is.

My thinking is that a big enough trans cooler used by itself, might actually keep it cooler than the radiator and the cooler. I guess it would depend on how hot the engine gets.

The stand alone cooler has to be more efficient than the radiator method, IMO. Running it back through the radiator might induce more heat that you already extracted with the new cooler. Only a comparison test would tell.

 

That is why routing oil line thru radiator first, is recommended, IF decision is made to use both for cooling. If enuf heat must be removed, taking the initial 'edge' off the temp, with radiator cooler, prior to dedicated trans cooler, makes the double system a good choice as well. Thermostat in system, prior to dedicated/auxiliary cooler, is also a good idea.

 

I'm thinking that with an auxillary cooler only and heavy traffic as the poster has described, it would be a big mistake. What keeps the tranny fluid cooled off in low speed, bumper to bumper traffic without an auxillary thermostatically controlled fan for example? I know that if the coolant gets hot enough then the normal cooling fans will come on and should move some air thru the auxillary cooler if it's mounted in front of the radiator but I wonder if it really is enough?