PCM Flash Needed for Oil Cooler + PP Rad on 2024 GT (Non-PP)

[Cool66]

Curious what you mean by “non-PP numbers matching up”? Is your Non PP PCM still programmed with the Non PP oil temp data or did you update to PP/DH data?

I have an external oil temp sensor and gauge that provides me real operational temps from a port on the sandwich plate at the oil filter. I’m really curious as to how accurate the inferred temps are on a PP/DH compared to the actual oil sensor. Non PP inferred oil temps are at times 30-35 degrees higher than actual temps from the installed sensor.

Order the MPVI4, credits, and VCM software to make the changes and tune myself. Hopefully together done next week. For comparison purposes, I would like to see what other are experiencing after updating to the PP/DH data.

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[Cool66]

The more I look at this the more it irritates me.
This morning I did some test loading at different RPM's and saw the non-PP numbers matching up. Which means they did NOT account for ambient temps at all or coolant temp correct?
Here in AZ it was 70 degrees this morning and my numbers matched the top chart almost exactly when I went to steady state driving.
So basically.... regardless of environmental conditions we don't REALLY know our oil temp.

Also makes me rethink which oil cooler kit to get if I pursue it. The tables would be based on Ford's data for the factory oil cooler.... a larger or smaller cooler would would not provide updated algorithms to input into this so you would be rolling the dice hoping the Ford engineers were in the ballpark for accuracy.

Curious what you mean by “non-PP numbers matching up”? Is your Non PP PCM still programmed with the Non PP oil temp data or did you update to PP/DH data?

I have an external oil temp sensor and gauge that provides me real operational temps from a port on the sandwich plate at the oil filter. I’m really curious as to how accurate the inferred temps are on a PP/DH compared to the actual oil sensor. Non PP inferred oil temps are at times 30-35 degrees higher than actual temps from the installed sensor.

Order the MPVI4, credits, and VCM software to make the changes and tune myself. Hopefully together done next week. For comparison purposes, I would like to see what other are experiencing after updating to the PP/DH data.

 

[ZXMustang]

Curious what you mean by “non-PP numbers matching up”? Is your Non PP PCM still programmed with the Non PP oil temp data or did you update to PP/DH data?

I have an external oil temp sensor and gauge that provides me real operational temps from a port on the sandwich plate at the oil filter. I’m really curious as to how accurate the inferred temps are on a PP/DH compared to the actual oil sensor. Non PP inferred oil temps are at times 30-35 degrees higher than actual temps from the installed sensor.

Order the MPVI4, credits, and VCM software to make the changes and tune myself. Hopefully together done next week. For comparison purposes, I would like to see what other are experiencing after updating to the PP/DH data.

My PP car was exactly where it should be and at times better since I had the ECT changes for the rad fan in place. No grille shutters on my car so no change there. Never had any issues relentlessly beating on it all summer here in Florida doing several thousands of miles of WOT data logging for tune testing.

 

[Ducatti20]

Curious what you mean by “non-PP numbers matching up”? Is your Non PP PCM still programmed with the Non PP oil temp data or did you update to PP/DH data?

I have an external oil temp sensor and gauge that provides me real operational temps from a port on the sandwich plate at the oil filter. I’m really curious as to how accurate the inferred temps are on a PP/DH compared to the actual oil sensor. Non PP inferred oil temps are at times 30-35 degrees higher than actual temps from the installed sensor.

Order the MPVI4, credits, and VCM software to make the changes and tune myself. Hopefully together done next week. For comparison purposes, I would like to see what other are experiencing after updating to the PP/DH data.

My non-PP car is still programed to factory settings for the algorithm. This morning I referenced the chart ZX shared and noted that if I drove in a steady state and matched the RPM's to his chart the temps listed were EXACTLY what I was getting. Since it was 70 degrees out I would have expected better performance then when its 90+ out (like it is now).
I have not made any changes yet and now am not sure I'm going to since the ECU just arbitrarily reports back the programed temperatures regardless of ambient or environmental conditions.

You said you have an external oil temp sensor and are seeing 30-35 degrees cooler than the inferred readings?

 

[Bullit69]

My PP car was exactly where it should be and at times better since I had the ECT changes for the rad fan in place. No grille shutters on my car so no change there. Never had any issues relentlessly beating on it all summer here in Florida doing several thousands of miles of WOT data logging for tune testing.

Which cooler are you running?

 

[ZXMustang]

Which cooler are you running?

The ford oem cooler.

 

[MustangNoob]

So what is the consensus here?
If the cylinder head temperature sensor is used to infer (along the driving input conditions) the rest of the engine temperatures , then I would assume a "colder" oil from an oil cooler would result in a "cooler" cylinder head... Based on that I would expect to see some drop in the engine oil temperature .....

 

[Zig]

So what is the consensus here?
If the cylinder head temperature sensor is used to infer (along the driving input conditions) the rest of the engine temperatures , then I would assume a "colder" oil from an oil cooler would result in a "cooler" cylinder head... Based on that I would expect to see some drop in the engine oil temperature .....

Is the thermostat mechanical?

 

[Billycar11]

Is the thermostat mechanical?

the thermostat is mechanical not electronic

 

[Zig]

the thermostat is mechanical not electronic

Would that imply anything that impacts the mechanical influences the downstream electronics?

 

[ohioguy]

So what is the consensus here?
If the cylinder head temperature sensor is used to infer (along the driving input conditions) the rest of the engine temperatures , then I would assume a "colder" oil from an oil cooler would result in a "cooler" cylinder head... Based on that I would expect to see some drop in the engine oil temperature .....

Cylinder head temp is usually based upon engine coolant temp. I can't imagine a reduction in oil temp is going to move that number. If it does, your bearings are already toast.

 

[Junkyard Dog]

Regarding the radiator, FP offers the DH Radiator and Fan package (M-8005-H). You have the option to order the radiator by its self under PR3Z-8005-A. The PP (GT and EB Mustang) and DH share the same 31mm radiator and brushless fan. The Non PP Mustang radiator is 18mm and the brushless cooling fan has approximately 550 less cfm. This particular package was offered earlier this year. I recently installed the DH package which has resulted in reduced ECT's and has lowered my inferred oil temps by a couple of degrees. FP Engineering provided the above information to me during our discussions.

I have been looking all over for the thickness of the Dark Horse radiator.

I just found this thread and the 2025 post above using Google.

Can anybody confirm this 31mm thickness?

I am asking because that is a lot thinner than I would have expected.

Mishimoto and CSF both make 42mm thick radiators, which would be more than one third thicker than the Dark Horse radiator. Oops, PWR, not CSF. The CSF is only for the S550 (and is a triple pass radiator).

PWR
https://driftamerican.com/2024-must...-X6xfGGlCjWH3216N-3kR9avK6n807ZFKmwKneAkj7n1m

 

[Junkyard Dog]

https://www.pbdyno.com/palm-beach-dyno-na-naturally-aspirated-2024-2025-mustang-gt.html
I bough the package from Palm Beach Dyno, they emailed me that they could help change the PCM setting to adjust the oil temperature algorithm to be the same as dark horse. It's still shipping, I'll let you know the progress.

MightyMars disappeared on us without an update from Palm Beach Dyno.

Maybe the board of directors at Ford Motor Company had him killed because he knew too much?

 

[Bullit69]

I went with a Mishimoto radiator, reservoir and Performance Pack fan to keep my Roush charged S650.
I did want the Dark Horse package, but didn’t feel it was up to par to cool my steed.

 

[Junkyard Dog]

I went with a Mishimoto radiator, reservoir and Performance Pack fan to keep my Roush charged S650.
I did want the Dark Horse package, but didn’t feel it was up to par to cool my steed.

Did you measure the radiator core thickness of your original?

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