Okay, so I have my Gryphon CS (waiting on 3 custom tunes from PHP) running on my 2009 F-150 Platinum. Just a few quick questions.

Right now I am running on Level 2 (Towing) because I see on the forums that is what everyone else is running. Why do people do that instead of run on Level 3 which is supposed to be the performance tune?

Also, when I changed the tune, I let it go to Level 2 and pushed "No" when it asked if I wanted to do custom tuning. I then later went into the menu options and changed the tire size to "35x12.5R20". I understand that it would be more accurate if I had the mm's with squish factored in, but I'll get to that later. Did I do this right, and is my truck calibrated for the larger tire size now? Or was I supposed to push "Yes" to doing custom tuning?

Also, when you change the tire size, does it only correct the speedometer on the display, or will it also correct my dash speedometer?


Thanks in advance!!

 

You're welcome!

 

Okay so let me see if I got this straight now:

Changing the tire diameter on the Gryphon will NOT correct the dash gauges, but only on the CS? That is okay with me if that is true, as long as one has the correct information.

So, I need to set my truck back to stock, then select whichever level I want, and when it asks if I want to make a custom settings, I push "Yes" and then put in the tire size? Then it will be corrected?

And lastly, let me see if I understand this correctly.


Level 1 is Economy, and is really just a transmission tune (firmer shifts, less throttle lag, etc...no actual power increase) and runs on 87 octane.

Level 2 is Towing, and does the same as Level 1 plus some power addition and runs on 87 octane.

Level 3 is Performance, will have the save as Level 1 but more power than Level 2, but runs on 91+ octane?

I didn't realize level 3 was 91+, I'm glad I didn't flash to it if that is the case.

 

I changed my Tire Diameter and my gauges seem right now? I think I was about 3 -4 kmph off, seems bang on now.
I am just running Level 1 now, think I might switch to level 2 until my custom 87 Performance comes along.

 

No, changing tire size on the CS/CTS platforms DOES change the dash speedo as well as in the CS/CTS display. But, the CS/CTS has TWO places where you can change Tire Size (TS)!

If you go to the "Options" menu in the Main menu, it will allow you to set up your "default" TS. You can do this either in P-metric units, "English" units, circumference or the tire or diameter (height) of the tire. This is NOT the "Custom Options" menu you can select when you change the tune! And, it does not actually change anything, until you reprogram the PCM to a new level - then it becomes the "chosen" setting and you don't have to use the "Custom Options" menu to set it. They should have included Gear Ratio (GR) here too, but they didn't.

Now, when programming to a different tune level (or reentering the current one) you are given the choice of opening the "Custom Options" menu. Here, you can enter/change any of the values shown, including TS and GR. I think the CS/CTS DOES use your "factory" GR here unless you change it because you've installed different gears. (No more "placeholder" values - I think.) Once you've finished changing things, scroll to "Use Current Settings" and the PCM will begin to be programmed.

There's no more "Use Previous Settings" choice - it ALWAYS uses the "Previous Settings" when you open the "Custom Options" menu.

And again, once you've programmed the PCM with a new TS (and GR if applicable), it DOES change the dash speedo accordingly. AND you really DO want to make it read about 3% fast (2-3 mph at 70 mph) to make the odometer read correctly.

You've got the "Levels" correct. Don't use level 3 unless you fill with 91-93 octane gas.

- Jack

 

Okay let me try this again.

The levels I got right, and I am personally going to use Level 2.

Also, when I correct the TS/GR on the CS it DOES in fact correct the dash. You said that I DO want to make it read about 3% fast...do I need to change the tire size calculation in the custom settings or will the dash do it itself? (i.e.-I change TS on the CS to my correct size, the CS shows correct speed but the dash is 2-3% fast). Is that right?

Next question, if I change the TS in the "Options" menu off of the main screen, and then reprogram the truck to, let's say, Level 2, then my TS will be corrected? If I do it through the "Options" menu, do I still need to do it through the "Custom Options" menu after I program it?

 

Answers in bold.

I know, it's confusing - but not as bad as the older Edge Evolution/Gryphon!

P.S. I think the Level 2 tune is a very good "daily driver" tune, whether you tow or not.

- Jack

 

Thanks for all your help. I think I've got it now. I'll put my truck back to the stock tune, then change the TS in the "Options" menu, then tune the truck to Level 2, say no to the "Custom Options" and then I should be good to go.

Is the "Custom Options" menu the only way to find out if the tuner has my correct GR?

 

Okay, so I ended up doing everything and got it all figured out. I'm back on Level 2 now with the correct tire size of 33.6"

I ended up changing the tire size in the "Options" menu and then also pushed "Yes" to the "Custom Options" questions. I did this to check the GR. I'm glad I did; it confirmed that if all you need to change is the TS, you can do so in the "Options" menu off of the main menu and there is no need to do it in the "Custom Options" selection....it also let me find out that it had the wrong GR set in my tuner. It had my GR set to 3.73 but I have 3.55 gearing. I wish I had 3.73 but I know since I have the small mirrors (not tow mirrors=max towing option), then there is no way I have the 3.73 gearing, which leaves it to be the 3.55 LS like I ordered. I guess the computer system was just confused or it was a default option.

 

Jack,
Per an e-mail from Edge tech support:

 

Yep - that works - do it all the time


MGD

 

Spell check doesn't work EVERY time.

 

I've said this before, but I'm not really a fan of the "tape measure" method. It gives you a starting point, but you still really have to make further adjustments. The "revs/mile" figures that Tire Rack and some other sites publish seem quite accurate and you can do a little trivial math to convert to circumference or diameter. I've found though, that a 3% reduction in unloaded diameter or circumference is usually VERY close (unless you have super low-profile tires).

The tape measure method doesn't account for centrifugal expansion of the tire as it rotates at speed, and, the increase in pressure caused by heating. I know, the effect is minor, but is probably noticeable.

Thanks, shotgunz, for the confirmation from Edge. I suspected as much, due to the way the data could be entered.

And SportTractoF150 - thanks for letting us know about the GR. Now that you've set it to 3.55, it should be the value you see anytime you open the Custom Options menu again. And, if you DON'T open that menu, I think the programmer will take the GR from the VID section of the PCM, which should be the factory size.

You can also confirm they installed a 3.55 LS differential if you look at the "Axle Code" on your door sticker. It should be "H9".

- Jack

 

Appreciate that, I'll definitely check the door sticker. I would be very happy if they did give me the 3.73 but I won't be disappointed if what's in there is what I paid for haha. What is the code for the 3.73 LS?

Edit: The code for the 3.73 LS is B6.

 

http://www.fordf150.net/howto/decode.php

MGD