Terrell threw for 170 yards for the Broncos (5-0, 1-0) and Davis had 72 yards with two touchdowns.
Jarvion Franklin — who had 132 yards rushing — ran for two scores in the first half and Terrell threw a scoring pass to Michael Henry to give the Broncos a 21-3 halftime lead. They cruised from there.
Western Michigan receiver Carrington Thompson was hit high late in the second quarter by Central Michigan's Otis Kearny after a 22-yard reception. He was slow to get up, took two steps and collapsed before being helped off the field. He did not return.
Cooper Rush threw for 178 yards and a score for the Chippewas (3-2, 0-1).