transmission cooler?

[MR2]

http://www.eng-tips.com/viewthread.c...=240331&page=1

Lots of interesting stuff in this one

[colt45 gto]

i wouldn't worry toomuch about oil temps in a MT, you need to worry about fluid loss from the transfer case at high speeds, the breather is set too low and the oil is spat out of that (i think past 100mph) there is however a fix for this, you can fabricate a breather tube from that up to the top of the trans with a small K&N filter then it will not loose oil it will run back down the tube.

[MR2]

I'm kinda keen to get some temperature monitoring before going with it not being needed, definitely worth considering something on the transfer-case

[Apache]

I'm pretty sure there are a couple of guys already running something for the transfer case, not quite sure how they're doing it though. I seem to recall that someone made a whole new fluid reservoir mounted in the engine bay to help, possibly hooked up to a pump to help actually circulate the fluid. I don't think just a breather tube for the TC would be enough since at sustained high speed driving that fluid gets HOT, probably due to the relatively small bearing surfaces. But a breather tube would be better than nothing I suppose.

As for an actual MTX cooler, I still say that it couldn't hurt. Michael, any chance you already have a way of monitoring temps already?

[i3igpete]

if my memory serves me correctly, MT fluid is only warm to the touch when drained from a car that was driven. whereas AT fluid is quite hot, since it is driven through pumps and the torque converter to physically move the car.

[MR2]

It should be a piece of piss to drop a temp probe in, I'll look into it.

[Apache]

Much appreciated. Let us know the results.

[Boostaddict]

For a MT oil cooler to be significantly effective you'd have to be running sustained gear oil (sump) temps of ~ 250°F or more for quite a while. If your gear oil is around that temp for any lengthy amount of time it will start to degrade (additive package breaking down). Measure your trans sump temps and that should give you an idea of what you are dealing with.

[MR2]

Bitchin:

http://www.aemelectronics.com/transm...e-100-300f-764

[EvanH]

A while ago I had bought a Laser thermometer. I randomly was aiming it at things on my car, the trans was one of them. After a drive of 70-80mph for 30-40 min. My trans was only 165*F. Maybe that is helpful to you. But it was measured from where the drain plug is( I aimed the laser at that point).