[chrisguyw]

The  Toyota   symboled  motors  are  wound   with  about  18-20  turns  of  what  looks  like 23 awg and  dont  have   carbon  brushes    but the  comutator  looks  great   so  I'm going  to  rewind  one  with  a  sensible  wind  and add  some   carbon brushes  just   because   I  like  the  look  of  the  can .

Hi Grah1, if the "Toyota" motor is wound 18/20T x 23awg it is likely from the little toy RC cars that run on 3 volts (2 AAA batteries) ,.....even the "Hot" Mini Z motors that run on 6 volts (4 AAA batteries) are generally no hotter than 50T x 28awg,.....and these have proper carbon brushes/strong springs.

If in fact this is the wind,...without proper brushes and much stronger brush springs the little bugger will last nano seconds at 10/12 volts 

As most of the "mini" and "mini z" motors have stack lengths of between .275 and .300, a wind in the range of 70T x 30awg is likely as hot as you will be able to go.
(As a reference, in case you were not aware, JK Falcons and the like are wound 65T x 30awg, with a .375 length stack, and, with better brush gear)

Love to hear how it turns out,.....and,...Happy Holidays.

Cheers
Chris Walker