Transmission Cooling

Is it necessary to run transmission cooling lines from the transmission to the radiator in non-race/heavy duty applications?
Thanks,
Keith

It is necessary to at least run them in a loop, but I personally think they should go thru a cooler.

Thanks guys.
Is it better to run solid lines or flexible lines?

A long time ago I read where it was suggested for street/towing use in cold climates that you should keep the factory radiator trans cooler/warmer in the loop when adding an auxiliary trans cooler. But in warmer areas it was OK to bypass the radiator cooler/warmer & just use an aux cooler by it's self.

On drag cars I have seen guys with 'glides & TH400's not using any cooler & just looping a line. But it's usually on a car that doesn't see street use or doesn't get hot lapped at the track. The Rossler 2 speed TH400 stuff has plugs in both cooler line ports so you don't bother looping a line. Guess he does something inside the case/pump to redirect the flow.

For street use it's hard to beat using hard lines for most of the cooler plumbing with flex line used only at the connections vs using 100% flexible line.

What is meant by, "running the lines in a loop"?

TheFrog wrote:What is meant by, "running the lines in a loop"?

Ju st get you a long piece of line hook one end to tranny, run it along frame rail, or something, and run it back to tranny, and hook other end up, just make a big loop with line.

Run a cooler its necessary on the street and is benificial on race applications too. Cooler is better for transmission life.

dfree383 wrote:Run a cooler its necessary on the street and is benificial on race applications too. Cooler is better for transmission life.

....Definately !!!!!!!

Thanks again guys!
The radiator I recently purchased already has a built in transmission cooler so I'll go ahead and hook into that. I was just wondering if I get by without hooking into it due to needing to run lines and stuff like that.
Keith

You can use that one or a auxillary cooler too. Good idea to run both.

I run a stacked trans cooler with a thermostat controlled fan. Also running -8 teflon braided hose to and from the cooler. Overkill? Possibly, but the likelyhood of my transmission failing due to heat is slim to none.

Should an auxillary cooler and/or stacked transcooler be mounted up front with the radiator?

TheFrog wrote:Should an auxillary cooler and/or stacked transcooler be mounted up front with the radiator?

If it has a fan, then you can mount it about anywhere.