Steve--
Thanks for your reply.
8-, 9-, 10-, and 11-tooth pinion gears are available by cutting apart the various ZZMT transfer gears. Similar pinion gears are also available on Super Slick motors. Perhaps these, depending on gear mesh, would give you the ratios to run a faster quarter-mile with the blue motor.
Will your new tire discovery also help?
chilli
http://www.gcrossett.com/zipzaps/mod..._gear_options/