After laboring on CAD programs, Photoshop, Z-Modeler, (and Microsoft Paint :P ) I finally made a gaauge for the Skyline that will convert it from KMH to MPH with no need to change your electronics. It may be off by a bit now, but at the most 1 mph off. It looks great too. I would post it but I dont have it hosted. I'll put it on one of my websites later.
You can reply with you email and I will send you a picture.
LONG LIVE UBERRACERS! Lol!
By the way, does anyone know what type of materials gauge faces are made of and where to get it. I think its poly urethane, right?