I am doibg 1/8th mile drag racing prep for my street hot rod. I will be running a magneto next year and would like to eliminate my battery and starter. Is there any reason to not remove the ring gear and mill off the outside of the aluminum flywheel. I know in engineering theres a minimum where you cant have a hole a certain distance from an edge. Can an engineer chime in with a formula I could plug numbers into. Im not sure I'm askimg the right questions but I appreciate the input.