D 350 Pickup L6-359 5.9L DSL (1989)
forced into the combustion chamber (the horsepower increases as the rpm of the turbocharger increases).
Because the turbocharger is controlled by the pressure of the exhaust gases, when the vehicle is accelerating from idle there is a period of time before it
will accelerate with full power. This time is called "turbo lag". "Turbo lag" is evident in virtually all single turbo applications, because the exhaust
pressure is very low at idle and the exhaust pressure has to increase to get the turbine impeller rotating (the turbine impeller has to be rotating in order for
air to be forced into the combustion chamber).
The seals inside the turbocharger are of a very special design to withstand the extreme temperatures under which the turbocharger operates.
CAUTION: The turbocharger housing can reach temperatures exceeding 1500 ~F (815 ~C), and can glow red. Do not touch the turbocharger housing
unless the vehicle has been OFF for an extended period of time.
The bearings are also of a special design, they are designed to handle extreme revolutions per minute. A turbocharger can turn from 20,000 to 140,000
revolutions per minute depending upon the engine application and load.
