My trannie temps. | Ford Explorer Forums

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My trannie temps.

rookieshooter

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Martinsburg WV
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84 BII "Li'l Samson"
OK guys, here are some numbers from my C4/C5 trannie behind a highly modded 302 in my lightweight B2. I'ts about 900 to 1000 pounds lighter then a stock B2. I would think weight would have something to do with the temps I'm getting. But first let me explain how it's set up. Tell my what you think.

IMG_2852-1.jpg


I have a B&M Super cooler in front of a Ford Motor Sport aluminum radiator. I had to make a custom grill to mount it this way. The main reason other then clearance was to get as much unobstructed air flowing through the cooler.


IMG_2855.jpg


Then the next thing was to get one of these air flow through tranny pans. This pic is the front of the pan. They really say that it does lower the oil in the pan considerably. But I had to make the exhaust go behind the pan. If I'm not mistaken, Explorers and some other trucks have the exhaust right up in front of the pan, I don't understand their reasoning behind this. Why have super heated air coming off the exhaust just to collect in the pan. The way I have it, all that exhaust is behind the pan and flowing away from it.

IMG_2853-1.jpg


Now here is where I selected to mount the heat sensor. It's in the line coming directly out of the tranny before it hits the cooler. So this is the actual temp. of the fluid after it does it's thing in the tranny. One reason I did not install it in the pan was that this is also a trail rig and don't need no line being torn off.

Now for the bottom line. I'll add more specs as I get them.
Todays ambient temp. was 86 f. Riding on the interstate with no hills the temp on my Auto Meter gauge was 124 F.
In town stop and go the temp rose to 150 F.
I checked some temp. charts that were posted by Brooklynbay and they did not even make the chart. Hmmm. Water temp of the engine was around 160F. Now I know the outdoor temp was not very hot. But we'll see what it does as the temps go up. I'll do some trail rides and also climbing some hills on public paved roads also and record temps. It will be interesting how it does in the cold winter months.
 



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If you can keep the ATF temps below 175°, you're golden.

What do you think about the quality of the pan with the cooling tubes? I was looking into that for my GF's motorhome with a 4R100, but I'm concerned that it could leak where the tubes are welded. What do you think?
 












If you can keep the ATF temps below 175°, you're golden.

What do you think about the quality of the pan with the cooling tubes? I was looking into that for my GF's motorhome with a 4R100, but I'm concerned that it could leak where the tubes are welded. What do you think?

I can only vouch for this one pan and say that there is no leaks around the tubes. I did some research on the pan before I bought it on other sites, and found only good things about it. I do have a small leak where the shifting rod comes out of the tranny. On this pan there is a vane type piece of metal in each tube that is actually twisted making the incoming air spin. I would assume that this acts just like a finn in a radiator dissipating heat to the incoming cooler ambient air.
 






I'm sure that if the sensor would be in the pan it would show a slightly higher reading. Overall this is probably the lowest temperature I've seen. It's way below the temperature of the engine.

The engine does run cool, and I would think that is just less heat the tranny could pick-up. Coupled with the way the engine bay lets a lot of fresh air in and heat out it all helps. If the engine is running around 150, then on my engine oil temp gauge the readings are always higher, like around 180. All in all, I'm very pleased.
I'm planning a trout fishing trip soon that will encompass a lot of steep Eastern mountains and trail rides along secondary roads and fire trails. I'll also post those temps.
 






im pretty sure that the oil temp, should always be higher than trans temp, unless the trans is running very hot. towing etc.
 






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