Pedzisa mutsara unotevera: Muna 1966, Simpson akasangana nomufambisi wengarava weNASA Pete Conrad, uyo akazivisa Simpson kumucheka weNomex wakashandiswa mumapfekero enzvimbo nokuda kwepurogiramu yeApollo. Panenge panguva imwe cheteyo, DuPont akasvikawo kambani yeHinchman pamusoro pokugadzira zvipfeko zvemakwikwi zveNomex. Mugore iroro Indianapolis 500, mutyairi Mel Kenyon akapfeka chipfeko chemoto cheNomex chakagadzirwa naHinchman. Gare gare gore iroro, vatyairi vanoverengeka vakatanga kuyedza zvipfeko zveNomex zvekuyedza zveSimpson, kusanganisira vatyairi veF1 Walt Hansgen naMasten Gregory, NASCAR mutyairi Marvin Panch, uye SCCA Trans-Am Series mutyairi Bob Tullius. Kambani yaSimpson Simpson Performance Zvigadzirwa yakaburitsa yekutanga yekutengesa Nomex kumhanya sutu, inonzi "Heat Shield Firesuit", muna 1967. Masutu acho akanga apfekwa ne30 yevakwikwidzi 33 mu
1967 Indianapolis 500.