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I studied all of that and read the threads posted above back when they were live. I decided I did not have time to dedicate to learning more. Currently committed to making time and as Sous says I have ‘secured the funding’ to invest in training. Bill is only 1.5 hours from me.
I believe @FinnishStroker ia correct. All library files, etc are locked/encrypted. It’s not as easy as tweaking someone else’s tunes. However, a couple tuners have told me they can get a good idea what the other guy did by studying data logs.
@SkySkiJason Let me know when you get a date set, I just may join you at the PHP shop if it works out that way (budget and time taken into consideration) and you don't mind.
I would LOVE to learn this with you. To spend time with Bill and then compare our notes and recall/discuss things we picked up independently would be incredibly valuable and certainly expedite our learning curve. If we roped a few others into our study group, we might even be able to figure out how to write a decent tune!
Isnt Quarterhorse an emulator that allows make adjustments on the fly,real live tuning device in other words..?
That's my guess...used for Live Tuning.
And to be honest, if you're planning on Minotaur to create a tune for your own use....I would think a Live Tuning session would yield the best results in the shortest time frame.
I'm going to jump in here to try to alleviate some of the floundering. None of us was born knowing it all so I'll add some information to this thread pertaining to what I found in the beginning of my personal journey and add some information to the things that have changed in the last ALMOST 13 years since getting started.
Originally Posted by KubotaOrange76
Is turning off the sensors like eot, ebp, iat etc etc how alot of tuners do their thing? Or is that something not so common?
"Turning off" sensors is NOT a thing. There are ways to keep the PCM from acting on certain inputs from them and altering the way the PCM interprets the inputs from them but just "turning them off" isn't really a thing.
Ive never tuned a 7.3 or even played with the software, but i got a bit of experience with 6.7 cummins and MCC.
The 6.7 (or other common rail engines) are nowhere remotely related to HEUI tuning.
It seems like that would enable you to produce a simpler, better tune? Except in extreme cold climates etc where you can benefit some feedback and adjustments in cold weather.From what ive read, the comparison is getting you closer to a mechanically injected diesel. I'm seeing most of the things like iat, eot etc are related to cold start and or emissions.
The "simpler" tune is the STOCK tune. It all starts there and very little has to be changed. A 7.3L ABSOLUTELY NEEDS cold adders and multipliers to function in the cold. I'm not talking Georgia cold. That's laughable. Dipping slightly below freezing for a day or two is not "cold weather". The stock tune takes into account EVERYTHING that the 7.3L needs to start and work adequately in just about every situation imaginable. Needlessly changing or omitting certain functions will nearly always cause trade-offs.
Specifically kind of a tune more like a b model cat that has infinite control over the injection timing vs just using engine oil and rpm(what the cat has). Even p7100 pumps run great with their fixed timing in various conditions(depending on line size, timing, compression etc(i.e how hopped up it is.)).
It's impossible with an engine that uses varying viscosity fluid based on temperature. Injection settings for oil that is 40 degrees MUST be way different for oil temperature of 190 degrees if consistent operation is desired.
Originally Posted by MountainManRobb
From what I understand, you can start deleting some sensors or parameters in a tune, and it can simplify the tune somewhat. Some sensor readings I would assume would be for engine safeguards, such as engine oil temp. That one in particular seems redundant if you have a coolant temp also.
No redundancy here. The PCM on the 7.3L doesn't care what the coolant temperature is and does not use it as a control input for anything.
The thing is, the fewer inputs you have, the less "intuitive" your tune would be, in my opinion. If you were not reading an IAT in your tune, and there was a major change in IAT, your tune would not adjust. Does it need to? That is anyones guess.
Most all of the inputs on a 7.3L are used for some calculation. Yes, even intake air temperature. It's not really "anyones guess". It's all there.
That is the "beauty" of having a plethora of inputs to control the outputs. The more inputs you have the more pleasant outputs you can derive. Fixed timing is something I have seen guys do in gas motors...and that timing is based on whatever purpose the motor is for, whether stationary operation at a fixed load, rpm, etc, or for specific purpose, such as just running WOT. For hardcore performance tuning, limiting the inputs would definitely make it easier, and more like a mechanically injected diesel, but you lose all of the driveability and flexibility the electronic controls gain you.
Exactly. Very well put and very true. Sure, static "timing" for a 7.3L is feasible as long as a person was absolutely sure that the intended use was going to happen at a specific temperature.
Originally Posted by sous
Either way, Minotaur software only works on the Hydra.
Not exactly. The size of files that Minotaur "works" with is completely dependent on what definition file is used. There WERE definitions available for 1 bank (32/56K), 224K (TS Performance), and 256K (Moates/Hydra). I think the most popular version is the 256K now simply because most everyone uses the Hydra anymore which is why I believe you're saying "only" in regard to Hydra.
Looking at the listing, I do not remember what is required from the "a la carte" menu in order to tune on one truck. It might be $450 or it might be $600. If it is $600, I would be inclined to go with the "Individual Package" for $695 and sell the Hydra chip as new in opened box to recoup a bit of cash.
Bare bones to begin (provided you have a Hydra already) requires a PC laptop, Minotaur (just a download but requires the license), definition file of your choosing (based on your truck's PCM code), and Hydraflash. That will get you "up and running" for you and anyone else with the same PCM family - you can write/save/burn as many calibrations as you want with this setup. You will also be sent a few different "standard" calibrations to see what is different between PHP's "canned" tuning and a stock calibration.
Originally Posted by RacinJasonWV
Part of me thinks the combined forces could/should tackle this. Then there is another part of me that thinks “diesels are expensive.” By that I’m meaning yes it would be doable, but at what cost? How do we know how much is too much timing? What is the long term durability of a particular tune?
It COULD be an issue. I only say that because there are no limits on what can or should be changed in the calibration. Some go too far though because it's not hard to do.
Do I think I could tweak someone else’s tune slightly and make it work better for my particular application? Yes. Shift points if nothing else.
Unless you can get your hands on some tuning from another person, don't bank on it. You're not going to read the calibrations off of a Hydra that came from "tuner x" and then start modifying. It's the great thing about encryption and serializing.
Do I think I have any idea of the ok limits for long term durability? Absolutely not.
That's really a non-issue. Plenty of vehicles have junked engines and transmissions from stock tuning - tuning that millions of others left the factory with.
I’m not trying to discourage you fellas here. Just throwing out my thoughts on why I won’t be more than a spectator on the adventure.
There's no disgrace in saying that. There is a HUGE learning curve and there are possible consequences for dabbling in the unknown....one just has to know their tolerance for success/failure.
Originally Posted by DanV
The way it looks to me is that you would purchase a "calibration file" for your specific PCM code. DP-422, DP-402...whatever it is. Then from that you would make your changes.
There are only two things that need to be purchased if you have a PC and a Hydra already: The Minotaur license (tied to your PC and the definition file), and the definition file itself. For a 49-state 2002 automatic, that would be TNAA4. PHP will also send a few TNAA4S2 (VDH2) calibrations with that for you to peruse.
Originally Posted by FinnishStroker
You can not modify other tuners files,they are encrypted.
ONLY if you get them from a vendor who has encrypted them for programming on a Hydra. The file is still saved on the author's PC and can be emailed as a raw hexidecimal file with no encryption. Just be aware that anybody with the software and appropriate definition files can then view/copy them.
Basicly if SD owner goes anything besides stock ADs or stock ADs with bigger nozzle,he has to start from a scratch.And with hybrid injectors add more in to it.
Unless you find someone willing to send you the raw calibration, yes, this is true.
About timing,i havent really messed with injection timing.
And you'll find that you really don't have to. Ford did a good job.
I feel like in HEUI theres so much more in to it.
Yep. Nearly infinitely more to it.
ICP,PW,MFD..Big changes can be made with zero timing tweaks..Pull too much PW and gutless turd or with too much PW(split shot tune for example)you have a smoking freight train that sure has some ***** in it
Those (especially injection pressure) change dynamic "timing" (start of combustion) all by themselves.
I tried to copy a PW map from SuperchargedPSDs YouTube channel..
Took screenshots from standard single shot injector PW maps(those did not really help in my case).
I have eyeballed through that PSA 101 tuning thread and quite a few others too..
SuperghargedPSD has helped me via PMs..
Your van PCM may also use a different multiplier base than his PCM so your values may not be able to be identical to his to run properly. There is another recent thread here that has experienced this phenomenon.
As far as I know Charles at PSA was Pocket here at FTE.
Nope, not even close. Charlie S. from Georgia is not Curtis F. from Colorado.
I also feel like that current tuners have only made little tweaks to PHP standard tunes to call them their own.
Not just PHP but yes, there aren't many original tunes out there anymore. However, and I will catch hell for this, but there are only so many ways to skin a cat. Sure, there are special little things that can be done to get as close to perfect as possible for one person's liking but to just make a truck run and drive and still maintain sanity while driving really isn't that groundbreaking.
Every revision i got from 1023 and Dan K had little or no effect at all.Feeling like no real,i mean big changes wasnt made at all.
Some things take A LOT of "tweaking" to make little differences in driveablility.
I was nearly throwing my axe in to the dwell on the tuning journey..It was frustrating,you thinked HEUREKA! that must be the key but tune made no difference at all..
I made hundreds of test calibrations,yes hundreds just for the idle remaining smooth.
Then hundreds more for driveability,power,shifting,etc..
Welcome to the first couple years of the tuning process. It is not as cut-and-dry as some make it out to be. Sure, there are pretty colors and graphs to look at but not all of the changes that can be made on one map are going to be as noticeable as on other maps.
had few months even not touched in the laptop,last week i opened it and might have found a way to circle around boost fooler..
You'll get sick of looking at it. I don't touch the tuning unless I have to. I actually find/make more things to give me the ambition to open the software these days. I have a 2-3 upshift tuning anomaly on my 95 that has plagued me for YEARS. I don't have the ambition to fix it so I drive around it.
There was a MAP delay section that had 2 seconds in it,it can be tweaked up to 30 secs,i think it is the delay time for PCM overboost code.
You'll discover that there are lots of ways to overcome nuisance problems. I would try a different way myself.
Originally Posted by DanV
I think it would be beneficial to have a list of some "theory" of what affects what. Like if you command more HPOP psi, that affects SOI (advances). And these are the part of the learning curve I was speaking to.
The Quarterhorse connects to the laptop while in the Minotaur software. The Quarterhorse works as a chip with values that can be modified on the fly by Minotaur. If you change a value in Minotaur while connected to the Quarterhorse, that change will be implemented in real time. It really helps with small problems that can't be solved in writing/burning/repeat scenarios.
You mentioned catching Hades about there being only so many ways to skin a cat. I understand what you mean and agree. But I also feel (and think you’ll agree) that some ways to go about it are better than others. That’s where the experience and intuition of people like you really shine.
Carry on folks. I’ve told myself to keep quiet and just observe but cleatus quoted me so....
@cleatus12r thanks for all the info.
By the way, how does one get tuning for their truck from you? I would be more then thrilled to be one of the lucky guys.
@cleatus12r , thank you for dropping in during your busy day and clarifying some of our floundering questions. Your right, GA does not have a true winter, and we like it that way! Some of us have lived in truly frigid climates (north of the arctic circle for 6 years for me) and learned that we do NOT like that sort of weather any longer.
Again, thank you for dropping in and addressing some of our questions and taking some of the heat off of Finnishstroker, who has done a great job on his setup.
Chris, @KubotaOrange76 and I were trading text messages back and forth this morning and he sent the following email to PHP at 1253 EST. I have uploaded his email to PHP and the response from below below with the permission from Chris. He should be along shortly after he finishes some work that pays the bills.
Originally Posted by Chris via email to PHP
Bill, I live in Dawsonville GA and own two hydras on my 7.3's. I have good bit of experience tuning dodges with MCC. I am hoping that this platform is similar as it will be familiar to me. Do I understand correctly the cost to tune one of my trucks would be : $600?
Then to tune my other hydra truck would be an additional $150?
Will I be able to modify one of my base tunes from the hydra library to my liking? Or do i have to start from scratch?
Alternatively, do you offer live tuning there in winder? I have some things in mind i would like to accomplish with my 2003 7.3 above the standard PHP tune.
Thank you,
Chris
Chris received this response from Ward at PHP at 1426.
Originally Posted by Ward via email to Chris
Hey Chris, you can download the Minotaur demo at the bottom of the Minotaur page. That will give you a good idea as to what the software is like: https://gopowerhungry.com/minotaur-tuning/
To tune a stock truck, you would just need the license ($200), set of definition files ($250), and of course a Hydra.
If you had non-stock truck that you wanted a better starting point, we would do an unencrypted custom file for that vehicle for $150.
You’d be able to tune as many trucks with the same PCM code with the same definition files. If you need to tune a new truck with a DIFFERENT PCM code, you’d need a correct set of definition files ($250).
The definition files are our “base” files, so you’ll have all our stock truck tunes, which you can edit yourself.
We do not currently offer live tuning. We’re mostly covered up doing our new International tuning, so that takes up most of Bill’s time. If you need something specific, we may can work something out, but we’re not currently offering any custom or live tuning to the public.
Regards,
Ward Bowles
Between what Cleatus12r and Finnishstroker has told us above and now the email directly from PHP, I feel we have a great deal of information in front of us than we have ever had previously. I am grateful for this thread and this effort to bring the tuning of a 7.3L down from the heavens to the surface of the Earth.
More to come as we gather information, experiences and ideas!
So it is possible to buy an unencrypted custom file from PHP..That might have helped a bit with my DIY hybrid injectors..🤔...🐒
I havent really felt any heat on my back about this..
Only tried to tell about stuff that I think i know.
Perhaps cleatus12r opened a bit about the challenges in starting to tune your own vehicle.
And i want to underline again that I dont have a single person who could talk with me about tuning a 7.3 PSD,in my mother language..💩
I agree 100% with cleatus12r that HEUI and commonrail/mechanical injection tuning cant really be spoken in the same sentence..
Anyone who has the desire and thrill to learn about this stuff,will learn the basics,in some time frame..
PS.
cleatus12r
Have you checked my T4 thread?
Sure would have been easier with your parts!😎
Too bad that we couldnt overcome the shipping issues..🙁
I'll just be watching and answer whatever questions I can regarding the usage of the software (no tuning). Again, I've been using this particular software exclusively for almost 12 years and a similar but crappy version of this program (based on the same PCMX platform) since about a year before that. I was hired by PHP pretty-much sight unseen based on the understanding of the software and the insight I freely gave on the long-defunct PHP forum.
If any uncertainties arise on what is needed to tune or required to be used to get started I will give you the answers to the questions.
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