m3 speed off May 24, 2015 22:09:14 GMT -5 via mobile Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by lancinator on May 24, 2015 22:09:14 GMT -5 I have NY m3 drill monitor set to speed cal#16082 and 58.94Hz/mph out of the gps speed cable. The M3 says I'm going 158 mph. Any ideas?