Turbos don't over rev, they're limited to the flow of exhaust going through them. They can produce over boost if the waste gates are mis-adjusted but that wouldn't harm the turbos. It would cause engine problems. The turbos are most likely frozen with stuck center bearings because the oil has turned to coke and plugged the oil passages. Most likely they can be rebuilt. Bruce Benson > You would have to dismantle the turbos to be sure; overrevving is > possible, so is inadequate lubrication and/or cooling. If the turbos were > overrevved you are lucky the engine was not damaged in the process. > > Since the DeLorean doesn't have turbos stock, I would be concerned about > the installation of the turbo setup. Maybe they screwed it up somehow.