The MP Motorsport driver, who joins the Dutch outfit having taken four podiums for UNI Virtuosi last year, set a 1m44.484s to top the timesheet.
A last minute dash from DAMS rookie Iwasa was enough to take second place, bumping team-mate Nissany into third, 0.3s behind the leader in an encouraging start to the team's new era under the ownership of ex-Formula 1 driver Charles Pic.
