Speed Calibration and Gryphon

[Desert Racer]

I do exactly that yet when I am driving my gps shows I am off my 5mph going under 40mph and off 9mph cruisng at 75mph. I have been messing with this for a week and tried it on each level and than did not go back to it and still not a thing is happening. I am very happy with the tuner and can not wait until i get my custom tunes! So how do I make it stick and work for the tire size?

[Jackpine]

Originally Posted by Desert Racer

I do exactly that yet when I am driving my gps shows I am off my 5mph going under 40mph and off 9mph cruisng at 75mph. I have been messing with this for a week and tried it on each level and than did not go back to it and still not a thing is happening. I am very happy with the tuner and can not wait until i get my custom tunes! So how do I make it stick and work for the tire size?

OK, maybe the number you are trying to enter is not really correct - that's a pretty huge error! Are you indicating faster than you are actually traveling, or do the speedo's read slower than the GPS? And, are you getting your "indicated" speed from the Gryphon (which is what you really want to do) or from the dash (not as accurate - it's always going to be slightly "fast").

Can you give me the tire size a little more exactly than 35's?

And, I have to say if you are seeing 23xx for tire size when you check it in the Custom Options, that sounds like you did not "Load Previous Settings" BEFORE you went to Tire Size. The 23xx sounds just like the "bogus" value I get when previous settings are not used.

- Jack

[Desert Racer]

I tired just to go up 10 the tire siaze and not a difference was made at all. Speedo is reading slower by 5mph and well the gryphon reads the same as the speedo. My gps is pretty dead on had a buddy get next to me and my gps matched his speedo. Would like it from the dash as well to have it on the gryphon be a waste as I have a gps to also tell me how fast I am going. Tires are 315/70/17. I have tried loading previous settings and the 23XX number is still the same. no matter what i do does not seem to affect anything at all. Try to kick the idle down a lil nada.