Deep Trans Pan
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From: upper michigan
Deep Trans Pan
Truck is comming up for trans service. i would like to get a deep pan with a drain plug and sending unit bung. who has a good pan with fair prices. thanks.
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From: Berryville, VA
try these guys out..
I got mine in the mail yesterday.. looks great and better price then the "name brand black powder coated" ones. it doesn't have the sending unit option, just the drain plug with the deeper pan, but it is cast aluminum so drill and tappin it shouldn't be a problem
http://www.yourcovers.com
I got mine in the mail yesterday.. looks great and better price then the "name brand black powder coated" ones. it doesn't have the sending unit option, just the drain plug with the deeper pan, but it is cast aluminum so drill and tappin it shouldn't be a problem
http://www.yourcovers.com
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From: Caistor Centre, ON, Canada
Those are nice pans. They say they will machine for a temp sender at the bottom of the page, but they also say there is a cast in boss to drill and tap yourself - good pricing too.
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From: Nashvile Tennessee
Tranny Pans
nitrousn,
We have been distributing the PML pans for a long time, they are not powder coated which helps a lot with throwing heat out of the pan itself. Powder coating is one of the best insulaters out there I can't imagine adding insulatation to a tranny pan when the main reason to have one is to reduce fluid temps. Plus the pump capacity is such that adding more than 2 quarts to the Dodge tranny doesn't get you any addittional cooling, in fact it slows down cooling when you tow up a mountian and then drop off the other side, the cool down time is extended as you have to cool more fluid quantity. All the pans have a cast in boss that you can drill and tap for the sender, do it yourself and save the cost of having it done. If you want we will do it for you before we ship it out if you really want us to. Take a look at the pics on our site of it, we also have the best price available.
Mark @ DPPI
P.S. The diff covers are awesome too.
We have been distributing the PML pans for a long time, they are not powder coated which helps a lot with throwing heat out of the pan itself. Powder coating is one of the best insulaters out there I can't imagine adding insulatation to a tranny pan when the main reason to have one is to reduce fluid temps. Plus the pump capacity is such that adding more than 2 quarts to the Dodge tranny doesn't get you any addittional cooling, in fact it slows down cooling when you tow up a mountian and then drop off the other side, the cool down time is extended as you have to cool more fluid quantity. All the pans have a cast in boss that you can drill and tap for the sender, do it yourself and save the cost of having it done. If you want we will do it for you before we ship it out if you really want us to. Take a look at the pics on our site of it, we also have the best price available.
Mark @ DPPI
P.S. The diff covers are awesome too.
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From: Texas/Oklahoma Border
Mark
.................................................. .................................................. ....
"The pump capacity is such that adding more than 2 quarts to the Dodge tranny doesn't get you any addittional cooling, in fact it slows down cooling ..... as you have to cool more fluid quantity."
by Mark Craig
.................................................. .................................................. ....
Have seen two PML Pans and they appear to be nice quality...and less expensive than the Mag Hy-Tec.
But, I have trouble buying into your statement above.
RJ
"The pump capacity is such that adding more than 2 quarts to the Dodge tranny doesn't get you any addittional cooling, in fact it slows down cooling ..... as you have to cool more fluid quantity."
by Mark Craig
.................................................. .................................................. ....
Have seen two PML Pans and they appear to be nice quality...and less expensive than the Mag Hy-Tec.
But, I have trouble buying into your statement above.
RJ
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From: Farmington,NM
I would think the reason DTT and ATS both install DD Powder Coated pans is because they keep in the heat and don't let the tranny cool its fluids..........NOT!!!!!
FWIW I've had both and both work better then stock.
FWIW I've had both and both work better then stock.
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From: upper michigan
Re: Tranny Pans
Originally posted by Mark Craig
nitrousn,
We have been distributing the PML pans for a long time, they are not powder coated which helps a lot with throwing heat out of the pan itself. Powder coating is one of the best insulaters out there I can't imagine adding insulatation to a tranny pan when the main reason to have one is to reduce fluid temps. Plus the pump capacity is such that adding more than 2 quarts to the Dodge tranny doesn't get you any addittional cooling, in fact it slows down cooling when you tow up a mountian and then drop off the other side, the cool down time is extended as you have to cool more fluid quantity. All the pans have a cast in boss that you can drill and tap for the sender, do it yourself and save the cost of having it done. If you want we will do it for you before we ship it out if you really want us to. Take a look at the pics on our site of it, we also have the best price available.
Mark @ DPPI
P.S. The diff covers are awesome too.
nitrousn,
We have been distributing the PML pans for a long time, they are not powder coated which helps a lot with throwing heat out of the pan itself. Powder coating is one of the best insulaters out there I can't imagine adding insulatation to a tranny pan when the main reason to have one is to reduce fluid temps. Plus the pump capacity is such that adding more than 2 quarts to the Dodge tranny doesn't get you any addittional cooling, in fact it slows down cooling when you tow up a mountian and then drop off the other side, the cool down time is extended as you have to cool more fluid quantity. All the pans have a cast in boss that you can drill and tap for the sender, do it yourself and save the cost of having it done. If you want we will do it for you before we ship it out if you really want us to. Take a look at the pics on our site of it, we also have the best price available.
Mark @ DPPI
P.S. The diff covers are awesome too.
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From: Cummins Technical Center, IN
Mark, I agree with you about powder coating being an isulator. It's a good one, actually. From what I understand of the M-H pans, though, only the black part is powder coated. Is this true (no clear coat)?
There are other reasons besides thermal shedding and and fluid capacity for DTT to install a M-H pan. One big one is case strength. A beefy pan like the M-H serves as a way of making the overall transmission case more rigid. Why is this important?
When the trans case flexes, the precision parts that are supposed to seal on the hydraulic circuits will leak. We all know how Bill K feels about internal leakage in the transmission.
However, Mark, I DO want to clarify what you said on the larger pan capacity not affecting temps.
The amount of heat-bearing fluid plays a BIG role. In a trans, you have heat constantly being added, and heat constantly being removed, both at varying rates. The larger fluid capacity in the system gives it "thermal intertia"-- it takes longer for the whole system to heat up, and longer for the whole thing to cool down. Why? Because the fluid adds THERMAL capacity, as well.
Take two pans of water-- one with just a trickle in the bottom, the other completely full-- and place them on identical burners. Which one will boil first?
But the case of the transmission is NOT nearly as simple as the pan example above.
This is because in the trans, heat is constantly being added at a varying rate (TC locked vs unlocked, etc). It's also being eliminated at a variable rate, because the effectiveness of the transmission's cooling is a function of how much hotter the ATF is relative to the coolant (or outside air with an aux tranny cooler). So the trans will dump heat faster when it's hotter.
Mark mentioned pump capacity, and how this can negate the benefits of increased fluid capacity. How can this be?
The pump can only move fluid a certain rate. This means that you will NOT increase the FLOW of ATF through the transmission's cooling circuit. Thus, you have NOT increased the ability of the transmission to cool itself.
What the fluid has changed is the RATE at which the ATF temp will rise and fall-- it will take a longer time for the ATF to warm up and cool down.
This can be useful when pulling small hills and will even out situations where you might see a quick, temporary increase in Trans temp. But on long hills and hard pulls, you will NOT see the benefit once the trans has had time time to get hot, you're SOL.
It's helpful to think of the capacity as a Reservoir. More ATF means you can STORE more heat, but you can't TRANSFER more heat! The only way to TRANSFER more heat is to increase cooling capacity-- add another cooler, increase pump flow rate, or both...
Justin
There are other reasons besides thermal shedding and and fluid capacity for DTT to install a M-H pan. One big one is case strength. A beefy pan like the M-H serves as a way of making the overall transmission case more rigid. Why is this important?
When the trans case flexes, the precision parts that are supposed to seal on the hydraulic circuits will leak. We all know how Bill K feels about internal leakage in the transmission.
However, Mark, I DO want to clarify what you said on the larger pan capacity not affecting temps.
The amount of heat-bearing fluid plays a BIG role. In a trans, you have heat constantly being added, and heat constantly being removed, both at varying rates. The larger fluid capacity in the system gives it "thermal intertia"-- it takes longer for the whole system to heat up, and longer for the whole thing to cool down. Why? Because the fluid adds THERMAL capacity, as well.
Take two pans of water-- one with just a trickle in the bottom, the other completely full-- and place them on identical burners. Which one will boil first?
But the case of the transmission is NOT nearly as simple as the pan example above.
This is because in the trans, heat is constantly being added at a varying rate (TC locked vs unlocked, etc). It's also being eliminated at a variable rate, because the effectiveness of the transmission's cooling is a function of how much hotter the ATF is relative to the coolant (or outside air with an aux tranny cooler). So the trans will dump heat faster when it's hotter.
Mark mentioned pump capacity, and how this can negate the benefits of increased fluid capacity. How can this be?
The pump can only move fluid a certain rate. This means that you will NOT increase the FLOW of ATF through the transmission's cooling circuit. Thus, you have NOT increased the ability of the transmission to cool itself.
What the fluid has changed is the RATE at which the ATF temp will rise and fall-- it will take a longer time for the ATF to warm up and cool down.
This can be useful when pulling small hills and will even out situations where you might see a quick, temporary increase in Trans temp. But on long hills and hard pulls, you will NOT see the benefit once the trans has had time time to get hot, you're SOL.
It's helpful to think of the capacity as a Reservoir. More ATF means you can STORE more heat, but you can't TRANSFER more heat! The only way to TRANSFER more heat is to increase cooling capacity-- add another cooler, increase pump flow rate, or both...
Justin
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From: Texas/Oklahoma Border
Justin explains Marks point about a larger capacity pan being potentially harmful in excellent detail. In theory both men are correct! If ATF were engine oil or water I might agree.
The nature of ATF is such that, I believe, the point is less than meaningful in actual practice.
ATF is the most complicated lubricant formula used in vehicles. It will cool down at a rate 3-4 times faster than water. I have demonstrated a high quality ATF (with more additives than most) by heating it to 250* and pouring it from about 15" into my hand, without getting burned. Don't try this with most national brands!!!
Yes I'm sure on a very long, steep grade, pulling very heavy, that a point can be reached where heat is stored faster than it can be disipated. This would result in a gradual increase in temp. of the fluid entering the tranny from the pan. But, the larger the pan, the more gradual the increase!
I do not think a smaller pan would do better than a larger one in these extreme conditions. It will just get hotter quicker. Once your over the top and on the downhill, does a slightly slower decline in temp from a bigger pan really bother anyone?
RJ
The nature of ATF is such that, I believe, the point is less than meaningful in actual practice.
ATF is the most complicated lubricant formula used in vehicles. It will cool down at a rate 3-4 times faster than water. I have demonstrated a high quality ATF (with more additives than most) by heating it to 250* and pouring it from about 15" into my hand, without getting burned. Don't try this with most national brands!!!
Yes I'm sure on a very long, steep grade, pulling very heavy, that a point can be reached where heat is stored faster than it can be disipated. This would result in a gradual increase in temp. of the fluid entering the tranny from the pan. But, the larger the pan, the more gradual the increase!
I do not think a smaller pan would do better than a larger one in these extreme conditions. It will just get hotter quicker. Once your over the top and on the downhill, does a slightly slower decline in temp from a bigger pan really bother anyone?
RJ
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From: Nashvile Tennessee
Heat transfer
rjohnson,
Believe me I had to really study it to see it as well initially. Here's the deal as best as I can type it down anyway and belive me I am no writer!
Take a 5 gallon bucket of water and or ATF. Heat it to 200 degrees, now pump it thru a cooler and record the time it takes to drop that temp to say 150 degrees. Now do the same thing with 2.5 gallons, your cool down time is greatly reduced. No matter how much you pump it thru a cooler the coolers thermal capacity is still the same, it can only throw off "X" amount of heat.
Same thing for the pump in the tranny, it's pumps "X" amount of gallons per hour, you can redue temps by adding 2 quarts, you will not reduce that temp anymore by adding more fluid as you have reached the pumps capacity and the coolers max capacity to throw off heat.
Hope that helps. Probably made it a clear as mud the way I write!
Mark @ DPPI
Believe me I had to really study it to see it as well initially. Here's the deal as best as I can type it down anyway and belive me I am no writer!
Take a 5 gallon bucket of water and or ATF. Heat it to 200 degrees, now pump it thru a cooler and record the time it takes to drop that temp to say 150 degrees. Now do the same thing with 2.5 gallons, your cool down time is greatly reduced. No matter how much you pump it thru a cooler the coolers thermal capacity is still the same, it can only throw off "X" amount of heat.
Same thing for the pump in the tranny, it's pumps "X" amount of gallons per hour, you can redue temps by adding 2 quarts, you will not reduce that temp anymore by adding more fluid as you have reached the pumps capacity and the coolers max capacity to throw off heat.
Hope that helps. Probably made it a clear as mud the way I write!
Mark @ DPPI
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From: Nashvile Tennessee
mcoleman,
Don't dispute your thoughts or that they add one to each tranny that goes out the door. This is arelatively new product they might or might not know about it, but I bet if you ask anyone about thermal transfer they will tell you that powder coating is not good for that prupose. It makes for an excellent looking product and is great for corrosion protection too.
Mark @ DPPI
Don't dispute your thoughts or that they add one to each tranny that goes out the door. This is arelatively new product they might or might not know about it, but I bet if you ask anyone about thermal transfer they will tell you that powder coating is not good for that prupose. It makes for an excellent looking product and is great for corrosion protection too.
Mark @ DPPI
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From: Nashvile Tennessee
HOHN,
Yes only the black part of the pan is powder coated, the fins are natural aluminum.
You are correct in your other thoughts but it also works in reverse, if you add an over abundance of fluid the temp will stay lower as you climb a steep grade, but it will also take longer for the heat to be thrown off on the back side of that grade as you coast. If you add the correct amount of fluid the heat up time is still minimized and the cool down time is also reduced to the shortest time possible.
Mark @ DPPI
Yes only the black part of the pan is powder coated, the fins are natural aluminum.
You are correct in your other thoughts but it also works in reverse, if you add an over abundance of fluid the temp will stay lower as you climb a steep grade, but it will also take longer for the heat to be thrown off on the back side of that grade as you coast. If you add the correct amount of fluid the heat up time is still minimized and the cool down time is also reduced to the shortest time possible.
Mark @ DPPI