In phx az, regular is I think a 1:67 at am pm and every were else it 1.70

 

Spark alert 60
EOT. 230

Engine temp alert 230

Trans temp. 230

CHT 250

Speed alert. Is what your tire manufacture rated your tire at

These are my truck alerts so if you have a crew cab or ext cab they will be different also my motor is the 5.4 liter I just took ten points off each setting to alert me before reaching the max on these settings hope this helps

 

How do I convert 32.6 to mm to put in my programmer

 

What is your tire size? I need the whole format, for example, 285/50/20

 

If its a 32.6" tire, then you need 2602mm in your tire diameter.

 

32.6" is the diameter and you need the circumference so pi * Diameter will give you the circumference in inches. Then multiply by 25.4 to convert to millimeters. And then multiply by .97 to account for squish.

2523mm is what you are looking for.

 

Squish doesn't occur at highway speeds. 32.6 " over all diameter is 828.04mm. So the circumference (what the Edge is asking for) is 2601 or 2602mm. See the attached chart where they list the size for a 32.6" comparable tire:

circumference, radius, sidewall height, inner diameter, overall diameter
2601.87mm , 414.1mm, 122mm, 584.2mm , 828.2mm


https://www.mcgrefer.com/sizeinfo/wi...page-1-profile

 

I don't believe in the "squish factor" period but I've had many arguments with others on this board about it and every article I read agrees with them. When we are talking about the circumference it should be just like the tracks on a tank, it doesn't matter what shape they take on the circumference always stays the same as does the belt package in the tire.

 

I prefer my speedo to be correct at 65mph more so than 20 mph. If a tire has 80 psi in it or 20 psi, the circumference is not the same going those speeds (ever seen a top fuel dragster tire upon a burn-out, even though that doesnt apply here???). For my truck, I would enter 2601, because to me, that is logical. I am not rock crawling, so "squish" doesnt apply to me.

So are you saying one of the most trusted tire sizing charts on the internet, https://www.mcgrefer.com/, is in-accurate?

 

No, it's absolutely correct. But it's telling you the static dimensions. Not the loaded dimensions, and that's where the argument for squish comes in when trying to program your speedometer. Like I said in the post before, I don't really buy into squish. But I haven't found anything to prove otherwise.