Superchip Tire Size?
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Joined: Sep 2001
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From: Howard Lake USA
Superchip Tire Size?
Hi, I have a 2004 F150 supercrew Fx4, and i have the superchip Hi Performance program installed, but when i installed it, it showed the tire height as 29.40 on the tuner, and i have the 275/65/R18, so the height would actually be 32.07. Just wondering what you guys changed your height to, to make the speedmoter more accurate, because if i put my truck into test mode, the message center shows i am only going 27mph, but my speedo gauge shows i am going 30mph. I was also getting some harsh and weird shifts, so i did move the tire size on the tuner upto 30.75, but i was wondering what height you guys are using.
Thanks,
Ryan
Thanks,
Ryan
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