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Discussion Starter · #1 ·
So my tranny is acting up, and it's not liking the power I'm putting through it. (Dyno test this Friday, fingers crossed, we'll see where I'm at). I'm going to put a better cooler in it, but I haven't decided between a G2 SHO cooler, or a Mr. Transmission one. If it's the Mr. Transmission one, I can get an employee discount and buy the giant one for the same price as the small one. :eek:

With that hopefully cooling the tranny, I was wondering if there was a way I could route some oil through the old tranny cooler. I mean, the only oil cooler we have is the wind passing under the oil pan, so what little cooling it provides would only be beneficial. Anyone have some ideas on where I could tap the lines?

As for the transmission, it has almost 190k on it. If it goes under for a full overhaul, I'll be up to $3000 for the rebuild. If I just take them the valve body, it will be much cheaper, but then my torque converter and clutch plates won't be looked at. Do you guys think that parts in the actual transmission need to be replaced right now, or would the valve body upgrades be plenty? (Assuming I do the whole both-transgo kit installs). Anything else I should consider?
 

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When I rebuilt my AX4S (@104K) I found the main pressure regulator worn, the Torque Converter stator bearing shot, and the rubber seals were softer than new with some wear. The clutches and bands looked fine. At almost twice the mileage I would think they are close to the end of their life. I would rebuild it and install both the Transgo and Superior kits. As far as the cooler, the G2 SHO cooler is massive, but is mounted low so it does not get much airflow from the cooling fan in stop and go traffic. You may want to consider a thinner one mounted at the middle of the condenser. As far as I know all of these cars have a stock trans cooler in the radiator.
Here's my rebuild:
http://www.taurusclub.com/forum/87-engine-drivetrain/156628-transmission-fluid-leak.html

http://www.taurusclub.com/forum/82-maintenance-repair/156770-if-has-come-out.html
 

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Go with something that's at least part way on the A/C consender so the cooling fan draws some air over it.

For an oil cooler you'll need to get a sandwich plate for inbetween the filter and filter mount. I'd use the stock trans cooler for oil if you use an aftermarket one for the trans.
 

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Discussion Starter · #4 · (Edited)
Go with something that's at least part way on the A/C consender so the cooling fan draws some air over it.

For an oil cooler you'll need to get a sandwich plate for inbetween the filter and filter mount. I'd use the stock trans cooler for oil if you use an aftermarket one for the trans.
That was the original plan. I'll have to check clearance for the oil filter, but how bad would it be if I had a plate made to send either all the fluid going into or out of the filter through the cooler? Would the full oil pressure be going through the filter?

Mmm... Sandwich plate...

EDIT: http://www.summitracing.com/parts/TRD-1313/ and then throw two lines out to the old tranny cooler, and I'm set. First step is a new tranny cooler, though.
 

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I agree, the G2 coolers are massive and do wonders for keeping the fluid cool while driving. In stop and go city traffic or stopped in traffic jams, the fluid spikes pretty fast since there is no air flow to cool it down. I will say that it does come back down fairly quick once moving again.
I am planning on a blower / fan assembly to solve that problem. The easy way to go, would be a cooler mounted high infront of the condencer to take advantage of the fans. You should be able to tap right into the lines where they go into the radiator. Run your fluid from the trans to the radiator, to the new cooler, back to the trans.
 

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Run your fluid from the trans to the radiator, to the new cooler, back to the trans.
I disagree with that order.

Take the fluid pumping OUT of the trans and pump it IN the stock cooler if you want to keep it, then the fluid coming OUT of the stock cooler IN the aftermarket cooler, then IN to trans.

Would seem like it would cool more that way. Use the stock cooler then boost with the aftermarket, not cool with the aftermarket then boost with the stock one.

It's up for debate though, but that's my opinion on the subject.
 

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Hi, Engine oil cooler? Using the redundant tx oil cooler to cool engine oil would be totally inneffective! The engine oil temp is according to the engine block temp which is dependent on the coolant/radiator system.
 

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Hi, Engine oil cooler? Using the redundant tx oil cooler to cool engine oil would be totally inneffective! The engine oil temp is according to the engine block temp which is dependent on the coolant/radiator system.
This is not true. The TX cooler is in the coolest point in the system(discharge of radiator around 150 Deg F.) because the heat was just removed by the radiator. This is fine for an oil cooler. In fact, many stock oil coolers are oil/water type.
 

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Make sure that the aftermarket cooler you are running is excellent if that the only cooler you are going to have on the trans. The one in the radiator is very efficient. I would run a B&M Supercooler, which is a stacked plate type Run the largest one that will fit in the space you have available.
 

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So, yes, if you think using that redundant TX cooler line is going to have any significance on cooling your engine oil you are wrong. Your engine temp will dictate your oil temp. If you want to cool your oil you will have to add an oil cooler, but why? A tranny cooler is assistive to cooling the tranny, but an engine oil cooler if you want one but has no benefit to your car because of the rad system keeping your engine at about 200F which will be your oil temp which is the optimum tenp
 

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an engine oil cooler if you want one but has no benefit to your car because of the rad system keeping your engine at about 200F which will be your oil temp which is the optimum tenp
Not exactly. Oil temp can signicantly exceed water temp in high performance engines because there is a limited path of heat transfer to the water. The sides of the lower block and oil pan do not have a cooling jacket. These engines (stock) do not generate enough heat in the bottom end for this to be an issue.
 

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I would be worried about flow rate going through the tranny cooler in the radiator. Those sandwich adaptors route all the oil through the cooler.
 

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Discussion Starter · #20 ·
So, yes, if you think using that redundant TX cooler line is going to have any significance on cooling your engine oil you are wrong. Your engine temp will dictate your oil temp. If you want to cool your oil you will have to add an oil cooler, but why? A tranny cooler is assistive to cooling the tranny, but an engine oil cooler if you want one but has no benefit to your car because of the rad system keeping your engine at about 200F which will be your oil temp which is the optimum tenp
There are multiple examples of higher oil temp than water temp:
SS #670 Mods: Oil cooler
FAQ

Not to mention the tranny oil cooler actually has a cooling effect on the transmission oil, which would transfer to the engine oil if it so happened to pass through it. But that's ok. Your grammar indicates you're a specialist in this matter, so I'll continue to rip the throttle and let the non-overworked coolant do it's job.

If you simply stated a misconception, I'd correct you properly, but don't start telling me off because you read something on the back of a car magazine.

I would be worried about flow rate going through the tranny cooler in the radiator. Those sandwich adaptors route all the oil through the cooler.
I'm not familiar with how the oiling system works. It would route all the oil going to the filter through the cooler, which very well may be all of it. There's an internal pressure/temp switch that'll open up to bypass the cooler under certain parameters. I'll have to call the company before I actually go through with this, but here's what I've figured out so far:

Route the oil cooler via the sandwich plate, and install an oil thermostat in the path of flow between the plate and the cooler. This will cause the oil to build pressure (or temperature) against the t-stat under a certain temp and route straight to the filter. When it's at whatever operating temp the t-stat is, it'll route through the cooler, and work similar to the t-stat in the water cooling system. Again, I'll have to confirm that operation with the company.

Also, the cooling system for the ATX is 3/8 line, which is what the oil cooler will be. With normal operating oil pressure, I believe it won't hamper the oiling of the engine. There's also race oil coolers with 1/2 lines.
 
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