Need lil help asap on programming tire size

[jd2518]

Gryphon asking for tire size in (mm). I have 35's....... What is correct mm setting......i tried on a calculatins site but doesnt seem right

[glc]

Put in what it says, then go out and compare the Gryphon speed to a GPS, adjust as necessary to make them correspond.

[jd2518]

35" to mm is like 889mm.......the gryphon doesnt go that low

[Net Wurker]

It's looking for circumference, not height. For a 35, start with 2792mm, and then do what glc suggested.

[jd2518]

Thanx fellas....reliable info as always on here

[jd2518]

At 2792, im showing a little faster than actual speed....should i go up or down on the # to get it more acurate....im thinking down towards 2650??

[Net Wurker]

Yeah, I think a smaller number is required if it is showing faster than actual speed. I may be wrong on that.

At any rate, I would make changes of no more than 100mm at a time while you're getting it calibrated...a drastic change may freak out your PCM and make the truck do strange things.

[jd2518]

Thanx netwurk....100mm increments is exactly what i had in mind......other than this calibration, im thoroughly impressed with this programmer....easily noticeable gains even just on the canned tunes

[Net Wurker]

Yeah, the Gryphon canned tunes seem alot better than the original Edge canned tunes. I have an Edge Evo that I have had forever, and I recently updated it to a Gryphon.

The new canned tunes rock compared to the old ones.

I have two custom tunes ordered and can't wait to get them.

[jd2518]

Waitin on my customs also