CREATE TABLE table_51604 ("Entrant" TEXT, "Constructor" TEXT, "Chassis" TEXT, "Engine" TEXT, "Tyre" TEXT, "Driver" TEXT, "Rounds" TEXT)

What engine was used when Aguri Suzuki drove the FA13B FA14 Chassis?
SELECT "Engine" FROM table_51604 WHERE "Chassis" = 'fa13b fa14' AND "Driver" = 'aguri suzuki'
SELECT "Engine" FROM "table_51604" WHERE "Chassis" = 'fa13b fa14' AND "Driver" = 'aguri suzuki'