6 pt bar on street car

Hi cpearce , my 2 cents . I was a crew member on a street/bracket car , Dodge, running 11.70's . Six weeks installed 6pt. roll bar with Sub-frame connecters . At the 1000 ft. mark at N.E.D. trans split open putting atf. on the slicks . Car rolled 3 times , landed upright , climbed the barriers , landed upright , caught fire . Driver walked away , car destroyed . If you are going to go to the expense of a roll bar please do it to SFI specs. Chrome moly or mild steel is ok . Moly is lighter but requires tig welding . The 6 point in my Scamp is moly with swing out door bars that I remove for the street . Factory belts are good for 11.49 seconds . You can feel the difference . Hope this helps , Tom