Gryphon =MPH - Power Hungry Performance Forum

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Gryphon =MPH

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2004 to 2008 F-150 and Mark-LT 4.2L, 4.6L and 5.4L equipped F-150s and Mark-LTs

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Sun, August 12th, 2012, 09:07 AM

nxtcsrt8

Whopper Junior

Join Date: Apr 2012

Location: Burnsville ,WV

Posts: 2

Gryphon =MPH

my gryphon shows 2mph faster than my GPS. I have my tire size set to the manual specs and my gear ratio set correct. How do I change the settings to make my mph correct? Do I go up or down on tire size? I need to make my gryphon read 2mph slower.
Alan

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