Jul 17, 2017 · w123 om602 turbo. still got stock inlinepump and stock turbo, dialed up about 2.33 turns, enough to maintain a stable and fast return to idle. pulling a w126 380SE, 400km on a trailer that wheights 700kg, no problem even with the 3.07 rearend, scooting past the trucks fighting the hills easily doing 100km/h up steep hills with 0.6-0.7 bar boost.. "/>Om602 vs om603