Yes.
Yes.
Yes, I did, and it wasn't one, it was many.

I can't. That data belongs to Ford, not to me, so I can't share it.

Type K thermocouples. Anywhere from 50-200 of them, depending on what test was being run.

The trans cooler lines were measured for temperature leaving and entering the trans, and leaving and entering each cooler. The pans usually had 12-20 thermocouples depending on pan size. There were many underneath the vehicle to measure temperature around the trans, engine, axle, etc. There were thermocouples in the radiator to measure temperature in, temp out, temp near the trans cooler, and 20-40 to measure the air temp coming off the cooler. We even had flow meters and pressure sensors to measure the flow and pressure in the cooler lines.

When the tests were over I could map the temperatures inside the pan. Do you have any data like that?

I'm not using thought experiments like some people, I've measured this with a high level of precision.

Having said all that it is obvious I haven't convinced you. Enjoy the larger pan!

 

Mark:
Maybe some people don't read your sig, or maybe they absolutly have no concept of what engineers do, and how they go about doing it. Thanks for that little lesson on how testing and monitoring aspects of individual components are done. I thought I realized the depth of how tests are run but I think I might have underestimated the actual depth of data acquistion . I grew up in Dearborn with engine engineers and what not for neighbors and have seen many a test vehicle home for the weekend. I never went to deep on what they all did because I knew it wasn't my business plus I'm not an engineer, just a mechanically minded shade tree repair person. Anyways, you still the trans man IMO.
Jeff

 

Mark;

You never did explain to me why I really have to work my truck to get the trans to 150 or so, or why 120-140 degree temperatures aren't enough to burn off any "moisture".

 

You don't have to get your truck to a warmer temp if you don't want to. It's your truck.

As a transmission warms and cools it draws air inside due to expansion and contraction. This air contains moisture. Some of that moisture will condense (ever seen dew on the ground where you live? That's condensed moisture) and collect inside the trans. Water and untreated steel will cause rust. I've seen steel parts inside transmissions rust and pit from moisture that collected in the trans.

150°F will work better to drive off this moisture than 140°F. Getting it over 200°F once in a while works even better. But I'm sure you know better than I do. Continue with what you've been doing, it seems to work for you.

 

Since we're talking trans temps, I'm curious as to how accurate the stock guage is in my '04. Once the trans is up to operating temp, the needle is always in the same spot, whether the truck is unloaded or towing 10,000+ lbs of trailer. Is this right? If so I'm thrilled, but I just have a hard time beleiving it could be accurate.

 

Its "accurate", its just not very sensitive. Or, another way to put it is that it has very poor resolution. If its between 100 and 220 deg, the needle stays in one position.

Here's a graphic I found in the web that shows the different needle positions of the stock gauge, and the temperature ranges they indicate.

 

That's nice to know, I kinda suspected something like that was going on. Here's my next question: what's a "safe" temp? Am I fine as long as it doesn't move up to the 230 degree area? Mine has always been exactly like the second (100-220) picture.

 

In the winter around town Mine barely moves above 100. Not ideal.
I have thought about getting a piece of cardboard or something to block airflow.
In the winter I need to figure out how to increase temps,not reduce them!
I would love for mine to run around 175 (Give or take) all the time.
Last summer pulling a load up a grade,(before the synthetic fluid change and 6.0 cooler install)-I hit 210-220 and got very nervous.

I have a mag hytech pan in my truck.
If I could go back,I would not buy another one.
It takes longer to warm up, longer to cool down if it gets hot..
it costs more when you do a fluid change.
I would put my money into an in line filter.

But--when you crawl under the truck-it sure looks pretty!!

 

I'm sure it's pretty much standard that in the winter the 4R100 never get warm. I would imagine that's why the 5R100 has a stat in it to warm the fluid. I've never seen my superchips temp gauge above 150 and I put it in last September/October. Stock cooler and pan, just an inline spin on filter from Summit.

 

I don't get why you feel the need to post like a sarcastic ***. Instead of just explaining what you know about stuff, you feel you have to be confrontational and condescending. Nobody else on this website has had the opportunity that you had, so why rub our noses in it? It makes you sound like a really big *****, and I'm sure there are others here who will agree.

 

Hmmmmmmmmm....that's how I was feeling about how you post. Maybe it's hard to read intentions in posts when you can't see the poster in person.

 

I am with Mark on this one. He brings top shelf credentials to any Ford automatic transmission discussion. I thought the questions asked about how he got his temp measurements and whether he had ever seen a Magtek pan etc were confrontational and condescending. If you think about what he said in his explanation of why the fancy pan would not lower temps, it makes good sense.

Regards

 

If you go back and read every post I had, never once did I post in a sarcastic or condescending tone. I was inquisitive to be sure, and I am always interested in how people collect their data to ensure accurate results.

That said, I don't really care one way or the other, nothing worth getting butt hurt over, but you just really sound like a *****. I am sorry if any post I made was misconstrued to you in the same way.

 

We had an exchange and I let it drop but since you want to bring it back up I'll resopnd to you.


Mark basically said I was full of crap and I called him on it. I asked direct questions about where he was coming up with his statements from. If that seems confrontational it's in the eye of the beholder.


If he's correct then my M-H pan actually heats the tranny fluid up rather than cools it.



As to this boundary layer it appears he's talking about something similar to a laminar flow layer in a pipe. While it's true that the heat transfer across the layer is different than in a layer of turbulent flow, there is still heat transfer. And again if he's correct this layer will just slow the heating effect of the warmer air that surrounds the tranny pan.

Now perhaps it's the location of the temp probe that's been engineered into the M-H pan that causes a difference in readings, perhaps it's the greater heat transfer offered by my tranny filter system and maybe it's something else but I don't see any explanation offered as to why I see lower readings on my tranny temp gage. Also the dash gage is next to useless for getting an actual temp reading.

As far as a sig goes, I could put "Former Reactor Operator" or "Former Nuclear Engineer" or even "PhD, Applied Reality" in my tag line........

Have a pleasant day gentlemen.

 

Why don't we just cool down guys. I was once on another forum where people were in disagreement and we lost a very knowledge person from that forum and it just was never the same. I would hate to see that happen here.