gryphon download on edge.....mpg....holy $#it
#11
#12
Senior Member
yea, my speedometer is off by about 3 mph, shows 70 when the gryphon says 67, verified that the gryphon is correct while driving through an area with a radar speed sign. Wonder if I need to play with the tire size or will a custom tune help. Im running 275/55/20 with 355 gears
Last edited by vintageman; 02-05-2015 at 10:35 PM. Reason: add to
#13
yea, my speedometer is off by about 3 mph, shows 70 when the gryphon says 67, verified that the gryphon is correct while driving through an area with a radar speed sign. Wonder if I need to play with the tire size or will a custom tune help. Im running 275/55/20 with 355 gears
#15
#16
Senior Member
18mpg? I don't know about this. What engine?
#18
Senior Member
35s on 20s, a level, and the 5.4l...............18mpg.
#20