Nyora kupfuurira kweiyi ndima - Pashure pokubudirira kwebasa reredhiyo reWIBC muna 1951, vatungamiriri veSpeedway vakafarira kutora mabasa enhepfenyuro mukati-mumba nokusingaperi. Muna 1952, Speedway yakatanga zviri pamutemo Indianapolis Motor Speedway Radio Network, ichishandisa tarenda repamhepo uye rutsigiro rwehunyanzvi kubva kuWIBC. Chimiro chacho zvakare chakatevera chimiro cheMutual-style, nehupenyu hwehupenyu pakutanga, kupedzisa, uye zvinyorwa zvenguva nenguva panguva yemakwikwi. Kutanga muna 1953, pashure pokunyunyuta kwedzimwe nhepfenyuro ina dzomunharaunda yacho, chikwata chetarenda chakawedzerwa kuti chive nevanhu vanobva munhepfenyuro dzose shanu dzeIndianapolis. Mujaho wa1953 wakanga wakatanhamara mukuti wakawedzerwa kuti uve nehupenyu hwekutanga "mureza-kune-mureza" kufukidzwa, uye nhamba yekubatana yakanga yatokura kune 130 nhepfenyuro. Munguva iyi, nhepfenyuro yacho yaiwanzoparadzirwa panguva imwe chete pazviteshi zvose zvikuru muIndianapolis, uye nhamba yevashandi vemunyika yose yakaramba ichikura nokukurumidza. Mune mamwe makore, vanobatana navo vaizonyoresa kutozosvikira mangwanani omumhanyi, vachidisa kutakura nhepfenyuro. Pakazosvika 1955
, nhepfenyuro yacho yaigona kunzwika mumatunhu ose 48 (maingova nematunhu 48 panguva iyoyo). Muna 1961, yakasvikawo nyika itsva dzeAlaska neHawaii. Nhepfenyuro yenyika yose yemasaisai mapfupi kupfurikidza neArmed Forces Radio yakatanga muna 1953, uye yakataura kuti yaisvika nyika iri yose umo chiNgezi chaitaurwa. Muna 1964, imwe nhepfenyuro muRhode Island yakatanga kutepfenyura, zvichireva kuti nhepfenyuro yepasi pano inobva mumatunhu ese makumi mashanu yakanga yava chikamu chenetwork (kare vateereri veRhode Island vaigona kungonzwa nhepfenyuro kubva kunharaunda yakavakidzana). WJAR muProvidence yakanyoresa nokuda kwomujaho wa 1964 nemamwe masangano 557 nokuda kwechiitiko chenhau.