PTU constructive opinion wanted
- Thread starter Jeff Dixon
- Start date
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It would be cheaper to wrap the downpipes in heat wrap and just buy a mighty vac and change the fluid with every other oil change. It would be cool to have that cooler and pump installed though.
Jeff Dixon
Member
A mighty vac doesn’t work with the pp cars as you can’t access the fill plug due to the cooling tube for the turbo being in the way
Jeff Dixon
Member
Yes it would be cheaper however I’m not looking for a cheap alternative just opinions and thoughts on whether it would work or not
You sure about that?
Jeff Dixon
Member
It looked very tight. Not sure what you would use to get the temp sensor out. The drain is easy it’s the fill I’m unsure of
Ok, I wasn’t aware of the fill being partially blocked on a PP SHO. As far as getting that cooler kit hooked up and working I don’t see any reason why it couldn’t work. Sorry for the confusion on access to the drain.
Jeff Dixon
Member
No worries The cooler tube for the pp ptu is right in the way of the temp sensor making it almost impossible to remove without taking off the cat and the turbo to be able to use the sendor port to refill. Most people use the gent line and extend it to the top by the master cylinder and fo the really dlow refill through the vent line
Jeff Dixon
Member
Thinking the cooler pump would make it easy to pump the fluid out and pump it back in
Yup, I’d try to mount the pump as low as possible to be gravity fed. Interested to see how you’ll mount the cooler. I think it’s definitely pretty cool and a nice setup. Have you tried piecing what you’d need separately, wondering if it’s necessary to purchase that Mustang cobra specific kit, or if buying the pump, cooler, and some lines separately would cut cost down some. Maybe in the $600 range. Just a thought.
Jeff Dixon
Member
The picture was there to show people what I was referring to however I haven’t priced it out as of yet. Still in the thought stage at this point.
Ta2dResqr
SHO Member
I do not have any experience with this topic but, my personal question would be, what viscosity is the cooler/pump designed to handle? Our differential uses 80-90 (Mustang uses 75-85). The PTU uses 75-140. Is this an issue?
Jeff Dixon
Member
With a tilton pump it is not an issue with the viscosity. I’m sure it’s not with most pumps designed for differential coolers
SM105K
Streetlight Grand Prix Champ/ IG @fafomotorsports
That is why you don't fill the PTU with fill plug. You fill it through the vent on top. Add a hose, run it to up to near the brake booster. After you fill it, put the vent on the hose.
Jeff Dixon
Member
Some of us don’t have an hour to spend filling it through the vent tube or would rather spend that time doing something else. Just looking at other oprions and this option has the added benefit of cooling and prolonging the lifespan of the ptu
SM105K
Streetlight Grand Prix Champ/ IG @fafomotorsports
The PP PTU's are already liquid cooled. Your best bet is to wrap the downpipes with heat wrap/ceramic coat, put in a good fluid and change it annually. If you want to add the cooler by all means. I just don't see it making a dramatic temp change. Most PTU temps stay around what the engine coolant temp is, and adding the cooler is just another system that can fail.
Also, I can change my PTU fluid in under 40 mins including getting my car on jack stands. If you burp the system the fluid fill goes in exceptionally quicker. Using an Lucas bottle with a ****** works great for me.
Also, I can change my PTU fluid in under 40 mins including getting my car on jack stands. If you burp the system the fluid fill goes in exceptionally quicker. Using an Lucas bottle with a ****** works great for me.
Jeff Dixon
Member
Mine has never been done, as I just recently purchased it and it is smelling of propane all the time I’m sure it’s more sludge than oil at this point. The pp’s sludge up just as quick as non pp’s. Any system
Will require maintenance and over time will fail. Thank you for your honest opinion
Will require maintenance and over time will fail. Thank you for your honest opinion
Jedster1
2015 SHO PP
Yeah, I'm with SM105K on this one. Save your money and the aggravation. I've just turned 110K on mine and had it changed once. It wasn't all burnt to a crisp, just a little thick, and I pound on it occasionally.
On a sidenote, I just picked up a '21 EcoSport. What a fun little sh&tbox !!
On a sidenote, I just picked up a '21 EcoSport. What a fun little sh&tbox !!
Ecoboost_xsport
SHO Member
This isn't going to work, you're going to have all kinds if issues trying to maintain the proper level inside the PTU.
A few issues. The PTU is a vented case, not filled to capacity as there is a void in there. It is also not designed to see any sort of pressure or you'll push oil passed the seals.
In the system you are thinking of, as the oil passes through the cooler, it will become less viscous, not much, but enough to create a "backup" and it will spill out the vent.
If the system was a closed, non-vented system with the ability to take pressures, or in a system that has way more capacity and "reserve" empty space, this could work, but I foresee a ton of oil spewing from the vent....
A few issues. The PTU is a vented case, not filled to capacity as there is a void in there. It is also not designed to see any sort of pressure or you'll push oil passed the seals.
In the system you are thinking of, as the oil passes through the cooler, it will become less viscous, not much, but enough to create a "backup" and it will spill out the vent.
If the system was a closed, non-vented system with the ability to take pressures, or in a system that has way more capacity and "reserve" empty space, this could work, but I foresee a ton of oil spewing from the vent....
Jeff Dixon
Member
All rear differential’s are vented as well. However depending on the pressure the seals could be an issue
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