Is any one out there running 35" and 20" with the SC with the correct adjustment for DIC reading?
I've tried 35", 34", and 34.5" and still not getting it right. SC techs recomended measuring the tire from the ground up, tried it with same results.
The closest reading I get is within 2 mph. Any other suggestions?:confused:

PS I'm using a gps to match the mph.

I think your problem is the FlashPaq feeding fuel the DIC cannot see which is what all the programmers appear to do. The tire size corrections are to get the speedo correct, not the DIC. Least IMHO. BTW, I don't think the tire size adjusts the odometer either, just the speedo. My speedo is right on with the adjustment, but the odometer reads low with the larger tires.

Thanks jimmyjohn.