Anyone know about this? I asked the tire place for 35x12.5 and I was looking and my tire says 325 65 r18.. Can anyone tell me if there's a difference or what. I have my edge programmed to 35s and there's nothing in the manual for the 325 65 r 18s

 

There is a formula to convert that in the manual. If not still there look online, tire circumference calculator. 35x12.5 is metric sizes xxx-xx rxx is imperial sizes they are most likely equivalent.

 

Yeah it's close it's 34.6

 

I lost my manual that was the problem

 

I have a K&N air filter...heard that makes the truck run a little lean. What should I adjust my air/fuel ratio to to compensate?

 

You can't adjust that without custom tunes.

 

All this talk about edge evo has convinced me to buy one. But I'm still a little confused.
I have a 2004 f150 fx4 5.4l new body style with 35"tires, 6"lift, 4.56 differential gears, k&n filter w Gotts mod.
Is it safe to install edge evo and set it on level two or do I need to get it customed tuned by PHP, to keep it from running to lean and damaging engine?

Thanks for the help.

 

So I decided to see how high my edge evo would let me set the max rpm and its at 8000 rpm. I know that's insane but I was wondering if anyone has ever gone past 6000 rpm and how brutal would it be if you did???

 

Holy moly it's not a ricer lol I'm curious to see what people have done also

 

Ya someone must have tried it or know of someone who has I'm just curious what the harm would be.