I am building a car for a local race, and I have thinned the BSA stock wheels to about 1/8" (never did this before). With standard uncut wheels, the rears migrate outward nicely. However, the thin wheels migrate inward. So I reversed (installed backwards) the thin wheels, and find that they migrate out. Help me out with the physics here, but I think that thinning the wheels moves the wheel-to-track contact point outward on the axle, and increases the force on the axle at the friction point (increased moment arm, etc.). So naturally this has ramifications on migration. The problem with reversing the wheels is that the bumpy lettering on the wheels is facing the wood car body. If at any point during the race something happens and the car gets misaligned enough to change the wheel migration, the friction from the raised lettering will probably stop the car. Any suggestions on how best to run thinner wheels? Should I cut them deeper into the car body to put the wheel surface back where it usually is?
