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| Gryphon Programmer (Disabled) Edge Product has discontinued the Edge Evolution 2, but we still provide support and tuning for it. If you have a question or comment relating the Gryphon (or Evolution) programmer, post it here. |
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#1
Wed, July 29th, 2009, 04:29 PM
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Bill always gives a smaller correction for squish than I do when we're talking bigger tires. Either one of our numbers is just a starting point though. If your speedometer is reading too high, your tire size is too large - reduce it. If the speedometer is reading too low, increase the tire size.
- Jack |
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#2
Thu, July 30th, 2009, 05:28 AM
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Guys .. am planning to go for bigger tires .. am running the 35`s now and am planning to run either 37 or 38 .. so what do i have to do with the custom tunes .. it will take long time until i regear it .. thanx
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#3
Thu, July 30th, 2009, 10:39 AM
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You don't really have to do anything except change the Tire Size in the Custom Options menu (if you want your speedometer to read correctly). Your truck is going to feel underpowered though.
- Jack |
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#4
Sun, August 2nd, 2009, 01:37 AM
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Going with 38's, I'd recommend 4.56 gears. In fact, 4.56 with 38's would give you the same RPM/MPH as 3.73 gears with the stock 31's. Until you can regear though, the truck is going to feel like like an absolute slug.
In the mean time, you can adjust the tire size and gear ratio using the custom options. Take care.
__________________
Bill Cohron - The Mad Doctor   Power Hungry Performance - The ORIGINAL in Ford performance tuning... Since 1997! (678) 890-1110 www.gopowerhungry.com - Home of the Hydra Chip, Minotaur Tuning Software, and the new Orion Reflash System for Navistar! Bring back  Windows™ XP and 7.  Windows™ Vista and Windows™ 8 is a pain in my a$$!  Windows™ 10 is only slightly less annoying!  Windows™ 11 is garbage!  Much to my surprise, I'm actually quite enjoying Linux! 
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