TDStuart Tuning Adventure

[tdstuart]

Any progress?

Probably shouldn't say this publicly but iv'e actually unlocked the lund tune and have been looking into that and modifying it to run with stock injectors and cai.

Don't worry though Ill be continuing with the methods I was doing since not everyone has access to another tuners finished tune and I want to learn how to do it myself too for future reference.

Some notes about Lunds tune:
- They don't tune SD or Torque
- They told me imrc was enabled, they have it fully disabled
- They have the stock MP enabled - IMRC closed ones
- They command one MP for FE and one for OS
- They use the cam angles we have already determined for OP and just let the MP blend as they would stock

I have to look into more how they get passed the baro and sd issues I have been having. They only change one thing in SD and its none of the function tables we have been focused on.

* Also no I won't be releasing the method or giving out the Lund files or any tuners locked files. I don't want to get in any trouble. There are other ways to do it using winols but my way is just 100x easier. The method can unlock any ford tuner file. Feel free to send me files for my collection haha.

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[tdstuart]

I can also now fully log the Lund tunes. Even though they don't tune SD or torque they seem to be more accurate than my tuned SD mapped point.

Lund doesn't have some secret magic that I see. They do have a ton of changes with the transmission though. There is some tables they have changed that are not defined in pcmtec.

 

[tdstuart]

Supercharged gen 2

What are they going to do, send Alex to kick my azz.

Not really Lund that I am worried about haha

 

[K4fxd]

Not really Lund that I am worried about haha Sponsored

There is no copy write or any legal issues. Too damn much secrecy in Ford tunes.

 

[onefastt]

@tdstuart How are you doing your speed density tuning? Are you using a sensor to log actual map? I have been using an external sensor with the pro feature set and using HP tuners speed density calculator and Im able to make everything line up correctly. Runs great twin turbo and 210lb Bosch injectors.
PCMTec has an external logger that goes to the USB on your computer that you can use to log external sensors. There are many SD tables that have to be modified (Depending on how many mapped points you have active) to get the SD model correct.
I also use PCMTEC for certain things that cant be done with HP like the Custom OS

One thing i started with that helped tremendously was a Pro-M wave maf in a 3.5 inch tube. They supply a known MAF curve for a 3.5" tube. This helped me work out that I had bad injector data that came in a base tune I purchased from someone off of the HP forum.

In summary if you have speed density active then you have to have a great calculator to dial the sd in and an external sensor. Speed density in my experience is used for many tables within the ecu.

 

[tdstuart]

@tdstuart How are you doing your speed density tuning? Are you using a sensor to log actual map? I have been using an external sensor with the pro feature set and using HP tuners speed density calculator and Im able to make everything line up correctly. Runs great twin turbo and 210lb Bosch injectors.
PCMTec has an external logger that goes to the USB on your computer that you can use to log external sensors. There are many SD tables that have to be modified (Depending on how many mapped points you have active) to get the SD model correct.
I also use PCMTEC for certain things that cant be done with HP like the Custom OS

One thing i started with that helped tremendously was a Pro-M wave maf in a 3.5 inch tube. They supply a known MAF curve for a 3.5" tube. This helped me work out that I had bad injector data that came in a base tune I purchased from someone off of the HP forum.

In summary if you have speed density active then you have to have a great calculator to dial the sd in and an external sensor. Speed density in my experience is used for many tables within the ecu.

If you look back a couple of pages (past the arguing on what MP to use) you can see that I have been trying a method of using the map (TB model) value outputted by the car to correct my SD.

There is also an auto calculator I made to pull the data from the tune. If you want me to repurpose it to support your method I would be glad to help.

As for the MAF currently I just have the stock airbox on so I think its decently accurate and the injectors are also stock currently.

The goal was to see how good we could get it with the TB model map and decide if we need an external sensor from there.

 

[tdstuart]

There is no copy write or any legal issues. Too damn much secrecy in Ford tunes.

Yes but what if Lund gets words and complains to pcm tec and they disable my account?

 

[K4fxd]

Yes but what if Lund gets words and complains to pcm tec and they disable my account?

Hadn't thought of that. Lund does make them enough money it is a possibility.

 

[onefastt]

@tdstuart external sensor will quantify your calculator.

 

[onefastt]

The HP tuners calculator modifies 3 quadratics per mapped point that need to be changed to support SD.

 

[tdstuart]

The HP tuners calculator modifies 3 quadratics per mapped point that need to be changed to support SD.

Yep you change the quadratic, slip, and offset.

Basically how I understand it, the car has a number based on the throttle body model and maf for how much map it should have. We are using that the fix the map it’s calculating from speed density.

yes an external map sensor would at the least verify our math

 

[engineermike]

The OSID (Operating System Identification?) number is basically the identification of the "decoder ring" that tells the PCM and tuning software where to look for the data and how its formatted. It's generally something like FSKK0 or KTGV2, but there are hundreds. Tunes are generally "locked" by the tuner by sub'ing in a different OSID. All the correct data are there, but your decoder ring is wrong. You can use hex editors or generally most tuning software to replace the OSID with the correct one, which then unlocks the tune. However, figuring out which is the correct one can be the tricky part. It's not always the OEM/stock one for your car.

 

[tdstuart]

The OSID (Operating System Identification?) number is basically the identification of the "decoder ring" that tells the PCM and tuning software where to look for the data and how its formatted. It's generally something like FSKK0 or KTGV2, but there are hundreds. Tunes are generally "locked" by the tuner by sub'ing in a different OSID. All the correct data are there, but your decoder ring is wrong. You can use hex editors or generally most tuning software to replace the OSID with the correct one, which then unlocks the tune. However, figuring out which is the correct one can be the tricky part. It's not always the OEM/stock one for your car.

Yep to expand there is also a strategy code which ties in with the osid. If pcm tec sees an unknown strategy code but can identify the contents of the tune as a different strategy it will label it as a tuner locked file and not let you open it (atleast as far as I can tell that’s how it works)

To change the osid and strategy code you would have to get the raw ecu data and manually change it. This is something that I don’t think any public tool supports.

There is ways with winols to do it but usually you need to have the pcm on a bench. I think there may be a way to do it over obd2.

My way is a lot easier though

 

[GregO]

What happened here, you still tuning ?

 

[tdstuart]

What happened here, you still tuning ?

Yep still tuning just haven’t had enough time. I picked up the PCMTEC custom os and am working through some issues with that.

Also a little update I put the PMAS back on with the new maf and the iat still climbs when I floor it

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