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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
Mon, February 2nd, 2009, 07:40 PM
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Lifted trucks almost always experience poorer fuel economy due to the extra drag created by the exposure of under-vehicle components, not to mention the additional rotating mass of the tires & wheels. Even the width of the tire and the tread pattern can add to the wind resistance.
As for the MPG, the Evo/Gryphon uses the MAF sensor reading to calculate the amount of fuel being used. There are times when it might be slightly inaccurate, such as under WOT acceleration, but these situations are infrequent and "weighted" so that they are given proper consideration. The thing to remember is that it isn't the final word in fuel economy... A pen and paper is. As Jack said, it should be used more as a means of measuring trends. For what it's worth though, I've found it to be more accurate than the MPG calculation in our Expedition. 
__________________
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$$!  Windows™ 10 is only slightly less annoying!  Windows™ 11 is garbage!  Much to my surprise, I'm actually quite enjoying Linux! 
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#2
Wed, March 4th, 2009, 12:48 AM
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I haven't checked my mileage on my trip divided by my gallons yet but I did notice that all of a sudden my gas mileage on my gryphon has dropped and I have no idea why. It did say I was getting around 17mpg at 65-70mph and now I'm lucky to get 13mpg at the same speed.
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#3
Wed, March 4th, 2009, 01:16 AM
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Did fuel quality change? Buy gas at a different station? Extreme weather change? All hugely important factors. When it started getting cold, we went from 19+ to around 17. Darn oxygenated winter blend fuels. :P
__________________
Bill Cohron - The Mad Doctor Power Hungry Performance - The ORIGINAL in Ford performance tuning... Since 1997! (678) 890-1110 www.gopowerhungry.com - Home of the Hydra Chip, Minotaur Tuning Software, and the new Orion Reflash System for Navistar! Bring back Windows™ XP and 7. Windows™ Vista and Windows™ 8 is a pain in my a$$! 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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#4
Wed, March 4th, 2009, 01:35 AM
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ya it could be.....but the truck is still fast so who the hell cares i guess
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